From: Jani Nikula <jani.nikula@linux.intel.com>
To: Nicolas Devillers <devillers.nicolas@gmail.com>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [Dell Inspiron 15R 5521] Can't toggle backlight brightness
Date: Mon, 14 Oct 2013 12:33:29 +0300 [thread overview]
Message-ID: <87ob6s6vti.fsf@intel.com> (raw)
In-Reply-To: <CAHrLa-HOoU=4W_xH34C2xVA2z57Khiv4Xk5_XCN_=ZkG1E8J3Q@mail.gmail.com>
On Mon, 14 Oct 2013, Nicolas Devillers <devillers.nicolas@gmail.com> wrote:
> Unfortunately this seems to cause others unpexected issue like ACPI
> unstability and crash on suspend/resume.
> I reported the issue in the following bug
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1214287
I can imagine the BIOS tripping over itself if you do
acpi_osi=Linux. Can you reproduce the problems with merely
acpi_backlight=vendor?
In any case, i915 does exactly the same things with or without
acpi_backlight=vendor, and the changes are in the ACPI driver. These are
not i915 bugs.
BR,
Jani.
>
>
> 2013/10/14 Jani Nikula <jani.nikula@linux.intel.com>
>
>> On Thu, 10 Oct 2013, Nicolas Devillers <devillers.nicolas@gmail.com>
>> wrote:
>> > -----BEGIN PGP SIGNED MESSAGE-----
>> > Hash: SHA1
>> >
>> > This mail is a follow-up of
>> > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1225811
>> >
>> > - - Summary of the problem:
>> >
>> > [Dell Inspiron 15R 5521] (using i915 drv) Can't toggle backlight
>> brightness
>> >
>> > - - Full description of the problem/report:
>> >
>> > Since Ubuntu Raring at least, it is not possible to setup backlight
>> > brightness without adding acpi_backlight=vendor into grub boot option.
>>
>> That makes the ACPI driver not register its own backlight interface, and
>> forces use of the i915's intel_backlight interface. Which apparently
>> works.
>>
>> You may find [1] relevant.
>>
>> BR,
>> Jani.
>>
>>
>> [1]
>> http://mid.gmane.org/1381498066-16011-1-git-send-email-aaron.lu@intel.com
>>
>>
>>
>> >
>> > - - Kernel version:
>> >
>> > Linux version 3.12.0-031200rc3-generic
>> >
>> > - - Environment
>> >
>> > Description: Ubuntu Saucy Salamander (development branch)
>> > Release: 13.10
>> >
>> > - - Module information (from /proc/modules):
>> >
>> > ebtable_broute 12731 0 - Live 0x0000000000000000 (F)
>> > bridge 110502 1 ebtable_broute, Live 0x0000000000000000 (F)
>> > stp 12976 1 bridge, Live 0x0000000000000000 (F)
>> > llc 14552 2 bridge,stp, Live 0x0000000000000000 (F)
>> > ebtable_nat 12807 0 - Live 0x0000000000000000 (F)
>> > ebtable_filter 12827 0 - Live 0x0000000000000000 (F)
>> > ebtables 30884 3 ebtable_broute,ebtable_nat,ebtable_filter, Live
>> > 0x0000000000000000 (F)
>> > r8169 67341 0 - Live 0x0000000000000000
>> > mii 13934 1 r8169, Live 0x0000000000000000 (F)
>> > pci_stub 12622 1 - Live 0x0000000000000000
>> > vboxpci 23194 0 - Live 0x0000000000000000 (OF)
>> > vboxnetadp 25670 0 - Live 0x0000000000000000 (OF)
>> > vboxnetflt 27613 0 - Live 0x0000000000000000 (OF)
>> > vboxdrv 320455 3 vboxpci,vboxnetadp,vboxnetflt, Live 0x0000000000000000
>> (OF)
>> > nfnetlink_queue 18117 0 - Live 0x0000000000000000 (F)
>> > nfnetlink_log 17908 0 - Live 0x0000000000000000 (F)
>> > nfnetlink 14606 2 nfnetlink_queue,nfnetlink_log, Live 0x0000000000000000
>> (F)
>> > xt_tcpudp 12884 0 - Live 0x0000000000000000 (F)
>> > nf_conntrack_ipv4 15012 0 - Live 0x0000000000000000 (F)
>> > nf_defrag_ipv4 12729 1 nf_conntrack_ipv4, Live 0x0000000000000000 (F)
>> > xt_conntrack 12760 0 - Live 0x0000000000000000 (F)
>> > nf_conntrack 91736 2 nf_conntrack_ipv4,xt_conntrack, Live
>> > 0x0000000000000000 (F)
>> > ip_tables 27239 0 - Live 0x0000000000000000 (F)
>> > x_tables 34059 4 ebtables,xt_tcpudp,xt_conntrack,ip_tables, Live
>> > 0x0000000000000000 (F)
>> > parport_pc 32701 0 - Live 0x0000000000000000 (F)
>> > ppdev 17671 0 - Live 0x0000000000000000 (F)
>> > bnep 19564 2 - Live 0x0000000000000000
>> > rfcomm 69070 12 - Live 0x0000000000000000
>> > binfmt_misc 17468 1 - Live 0x0000000000000000 (F)
>> > nfsd 279192 2 - Live 0x0000000000000000 (F)
>> > auth_rpcgss 54489 1 nfsd, Live 0x0000000000000000 (F)
>> > nfs_acl 12837 1 nfsd, Live 0x0000000000000000 (F)
>> > nfs 180519 0 - Live 0x0000000000000000 (F)
>> > lockd 93583 2 nfsd,nfs, Live 0x0000000000000000 (F)
>> > sunrpc 271025 6 nfsd,auth_rpcgss,nfs_acl,nfs,lockd, Live
>> > 0x0000000000000000 (F)
>> > fscache 58475 1 nfs, Live 0x0000000000000000 (F)
>> > dm_crypt 22728 1 - Live 0x0000000000000000 (F)
>> > nls_iso8859_1 12713 1 - Live 0x0000000000000000 (F)
>> > x86_pkg_temp_thermal 14162 0 - Live 0x0000000000000000
>> > intel_powerclamp 14705 0 - Live 0x0000000000000000
>> > kvm_intel 138538 0 - Live 0x0000000000000000 (F)
>> > kvm 431315 1 kvm_intel, Live 0x0000000000000000 (F)
>> > crct10dif_pclmul 14289 0 - Live 0x0000000000000000 (F)
>> > crc32_pclmul 13113 0 - Live 0x0000000000000000 (F)
>> > ghash_clmulni_intel 13259 0 - Live 0x0000000000000000 (F)
>> > aesni_intel 55624 5816 - Live 0x0000000000000000 (F)
>> > aes_x86_64 17131 1 aesni_intel, Live 0x0000000000000000 (F)
>> > lrw 13257 1 aesni_intel, Live 0x0000000000000000 (F)
>> > gf128mul 14951 1 lrw, Live 0x0000000000000000 (F)
>> > glue_helper 13990 1 aesni_intel, Live 0x0000000000000000 (F)
>> > ablk_helper 13597 1 aesni_intel, Live 0x0000000000000000 (F)
>> > cryptd 20329 2909 ghash_clmulni_intel,aesni_intel,ablk_helper, Live
>> > 0x0000000000000000 (F)
>> > dell_wmi 12761 0 - Live 0x0000000000000000
>> > sparse_keymap 13948 1 dell_wmi, Live 0x0000000000000000
>> > dell_laptop 17369 0 - Live 0x0000000000000000
>> > dcdbas 14847 1 dell_laptop, Live 0x0000000000000000
>> > rts5139 331166 0 - Live 0x0000000000000000 (C)
>> > uvcvideo 80885 0 - Live 0x0000000000000000
>> > videobuf2_vmalloc 13216 1 uvcvideo, Live 0x0000000000000000
>> > videobuf2_memops 13362 1 videobuf2_vmalloc, Live 0x0000000000000000
>> > videobuf2_core 40469 1 uvcvideo, Live 0x0000000000000000
>> > videodev 133390 2 uvcvideo,videobuf2_core, Live 0x0000000000000000
>> > joydev 17377 0 - Live 0x0000000000000000 (F)
>> > arc4 12608 2 - Live 0x0000000000000000 (F)
>> > iwldvm 237440 0 - Live 0x0000000000000000
>> > mac80211 596969 1 iwldvm, Live 0x0000000000000000
>> > btusb 28267 0 - Live 0x0000000000000000
>> > snd_hda_codec_hdmi 41276 1 - Live 0x0000000000000000
>> > snd_hda_codec_realtek 51465 1 - Live 0x0000000000000000
>> > snd_hda_intel 48171 5 - Live 0x0000000000000000
>> > bluetooth 371874 22 bnep,rfcomm,btusb, Live 0x0000000000000000
>> > snd_hda_codec 188738 3
>> > snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel, Live
>> > 0x0000000000000000
>> > snd_hwdep 13602 1 snd_hda_codec, Live 0x0000000000000000 (F)
>> > snd_pcm 102033 4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec, Live
>> > 0x0000000000000000 (F)
>> > snd_page_alloc 18710 2 snd_hda_intel,snd_pcm, Live 0x0000000000000000 (F)
>> > snd_seq_midi 13324 0 - Live 0x0000000000000000 (F)
>> > snd_seq_midi_event 14899 1 snd_seq_midi, Live 0x0000000000000000 (F)
>> > snd_rawmidi 30095 1 snd_seq_midi, Live 0x0000000000000000 (F)
>> > snd_seq 61560 2 snd_seq_midi,snd_seq_midi_event, Live 0x0000000000000000
>> (F)
>> > snd_seq_device 14497 3 snd_seq_midi,snd_rawmidi,snd_seq, Live
>> > 0x0000000000000000 (F)
>> > snd_timer 29433 2 snd_pcm,snd_seq, Live 0x0000000000000000 (F)
>> > snd 69141 20
>> >
>> snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_seq_midi,snd_rawmidi,snd_seq,snd_seq_device,snd_timer,
>> > Live 0x0000000000000000 (F)
>> > microcode 23518 0 - Live 0x0000000000000000 (F)
>> > iwlwifi 165398 1 iwldvm, Live 0x0000000000000000
>> > psmouse 97626 0 - Live 0x0000000000000000 (F)
>> > serio_raw 13413 0 - Live 0x0000000000000000 (F)
>> > cfg80211 479757 3 iwldvm,mac80211,iwlwifi, Live 0x0000000000000000
>> > lpc_ich 21080 0 - Live 0x0000000000000000
>> > mei_me 18421 0 - Live 0x0000000000000000
>> > mei 77692 1 mei_me, Live 0x0000000000000000
>> > soundcore 12680 1 snd, Live 0x0000000000000000 (F)
>> > mac_hid 13205 0 - Live 0x0000000000000000
>> > coretemp 13435 0 - Live 0x0000000000000000
>> > i8k 14421 0 - Live 0x0000000000000000
>> > lp 17759 0 - Live 0x0000000000000000 (F)
>> > parport 42299 3 parport_pc,ppdev,lp, Live 0x0000000000000000 (F)
>> > hid_generic 12548 0 - Live 0x0000000000000000
>> > usbhid 53014 0 - Live 0x0000000000000000
>> > hid 101512 2 hid_generic,usbhid, Live 0x0000000000000000
>> > radeon 1402449 2 - Live 0x0000000000000000
>> > i915 655752 3 - Live 0x0000000000000000
>> > ttm 83995 1 radeon, Live 0x0000000000000000
>> > ahci 25819 3 - Live 0x0000000000000000 (F)
>> > libahci 31898 1 ahci, Live 0x0000000000000000 (F)
>> > i2c_algo_bit 13413 2 radeon,i915, Live 0x0000000000000000
>> > drm_kms_helper 52651 2 radeon,i915, Live 0x0000000000000000
>> > drm 296739 8 radeon,i915,ttm,drm_kms_helper, Live 0x0000000000000000
>> > wmi 19070 1 dell_wmi, Live 0x0000000000000000
>> > video 19318 1 i915, Live 0x0000000000000000 (F)
>> >
>> >
>> > - - Loaded driver and hardware information (/proc/ioports, /proc/iomem)
>> >
>> > ioports:
>> >
>> > 0000-0cf7 : PCI Bus 0000:00
>> > 0000-001f : dma1
>> > 0020-0021 : pic1
>> > 0040-0043 : timer0
>> > 0050-0053 : timer1
>> > 0060-0060 : keyboard
>> > 0062-0062 : EC data
>> > 0064-0064 : keyboard
>> > 0066-0066 : EC cmd
>> > 0070-0077 : rtc0
>> > 0080-008f : dma page reg
>> > 00a0-00a1 : pic2
>> > 00c0-00df : dma2
>> > 00f0-00ff : fpu
>> > 0400-0403 : ACPI PM1a_EVT_BLK
>> > 0404-0405 : ACPI PM1a_CNT_BLK
>> > 0408-040b : ACPI PM_TMR
>> > 0410-0415 : ACPI CPU throttle
>> > 0420-042f : ACPI GPE0_BLK
>> > 0430-0433 : iTCO_wdt
>> > 0450-0450 : ACPI PM2_CNT_BLK
>> > 0454-0457 : pnp 00:06
>> > 0458-047f : pnp 00:04
>> > 0460-047f : iTCO_wdt
>> > 0500-057f : pnp 00:04
>> > 0680-069f : pnp 00:04
>> > 0cf8-0cff : PCI conf1
>> > 0d00-ffff : PCI Bus 0000:00
>> > 1000-100f : pnp 00:04
>> > 164e-164f : pnp 00:04
>> > 2000-2fff : PCI Bus 0000:07
>> > 2000-20ff : 0000:07:00.0
>> > 2000-20ff : r8169
>> > 3000-3fff : PCI Bus 0000:01
>> > 3000-30ff : 0000:01:00.0
>> > 4000-403f : 0000:00:02.0
>> > 4040-405f : 0000:00:1f.3
>> > 4060-407f : 0000:00:1f.2
>> > 4060-407f : ahci
>> > 4080-4087 : 0000:00:1f.2
>> > 4080-4087 : ahci
>> > 4088-408f : 0000:00:1f.2
>> > 4088-408f : ahci
>> > 4090-4093 : 0000:00:1f.2
>> > 4090-4093 : ahci
>> > 4094-4097 : 0000:00:1f.2
>> > 4094-4097 : ahci
>> > fd60-fd63 : pnp 00:04
>> > ffff-ffff : pnp 00:04
>> > ffff-ffff : pnp 00:04
>> >
>> > iomem
>> > 00000000-00000fff : reserved
>> > 00001000-00087fff : System RAM
>> > 00088000-000bffff : reserved
>> > 000a0000-000bffff : PCI Bus 0000:00
>> > 000c0000-000c3fff : PCI Bus 0000:00
>> > 000c4000-000c7fff : PCI Bus 0000:00
>> > 000c8000-000cbfff : PCI Bus 0000:00
>> > 000cc000-000cffff : PCI Bus 0000:00
>> > 000d0000-000d3fff : PCI Bus 0000:00
>> > 000d4000-000d7fff : PCI Bus 0000:00
>> > 000d8000-000dbfff : PCI Bus 0000:00
>> > 000dc000-000dffff : PCI Bus 0000:00
>> > 000e0000-000e3fff : PCI Bus 0000:00
>> > 000e4000-000e7fff : PCI Bus 0000:00
>> > 000e8000-000ebfff : PCI Bus 0000:00
>> > 000ec000-000effff : PCI Bus 0000:00
>> > 000f0000-000fffff : PCI Bus 0000:00
>> > 000f0000-000fffff : System ROM
>> > 00100000-1fffffff : System RAM
>> > 02000000-02707105 : Kernel code
>> > 02707106-02d10dff : Kernel data
>> > 02e70000-02fe3fff : Kernel bss
>> > 20000000-201fffff : reserved
>> > 20000000-201fffff : pnp 00:0a
>> > 20200000-40003fff : System RAM
>> > 2c000000-33ffffff : Crash kernel
>> > 40004000-40004fff : reserved
>> > 40004000-40004fff : pnp 00:0a
>> > 40005000-8ffaffff : System RAM
>> > 8ffb0000-913affff : reserved
>> > 913b0000-99dbefff : System RAM
>> > 99dbf000-9aebefff : reserved
>> > 9aebf000-9afbefff : ACPI Non-volatile Storage
>> > 9afbf000-9affefff : ACPI Tables
>> > 9afff000-9affffff : System RAM
>> > 9b000000-9f9fffff : reserved
>> > 9fa00000-feafffff : PCI Bus 0000:00
>> > 9fa00000-9fa00fff : pnp 00:09
>> > a0000000-afffffff : PCI Bus 0000:01
>> > a0000000-afffffff : 0000:01:00.0
>> > b0000000-bfffffff : 0000:00:02.0
>> > c0000000-c0ffffff : PCI Bus 0000:01
>> > c0000000-c003ffff : 0000:01:00.0
>> > c0040000-c005ffff : 0000:01:00.0
>> > c1000000-c13fffff : 0000:00:02.0
>> > c1400000-c14fffff : PCI Bus 0000:07
>> > c1400000-c1403fff : 0000:07:00.0
>> > c1400000-c1403fff : r8169
>> > c1404000-c1404fff : 0000:07:00.0
>> > c1404000-c1404fff : r8169
>> > c1500000-c15fffff : PCI Bus 0000:08
>> > c1500000-c1501fff : 0000:08:00.0
>> > c1500000-c1501fff : iwlwifi
>> > c1600000-c160ffff : 0000:00:14.0
>> > c1600000-c160ffff : xhci_hcd
>> > c1610000-c1613fff : 0000:00:1b.0
>> > c1610000-c1613fff : ICH HD audio
>> > c1614000-c161400f : 0000:00:16.0
>> > c1614000-c161400f : mei_me
>> > c1615000-c16150ff : 0000:00:1f.3
>> > c1617000-c16177ff : 0000:00:1f.2
>> > c1617000-c16177ff : ahci
>> > c1618000-c16183ff : 0000:00:1d.0
>> > c1618000-c16183ff : ehci_hcd
>> > c1619000-c16193ff : 0000:00:1a.0
>> > c1619000-c16193ff : ehci_hcd
>> > e0000000-efffffff : PCI MMCONFIG 0000 [bus 00-ff]
>> > e0000000-efffffff : reserved
>> > e0000000-efffffff : pnp 00:09
>> > feb00000-feb03fff : reserved
>> > fec00000-fec00fff : reserved
>> > fec00000-fec003ff : IOAPIC 0
>> > fed00000-fed003ff : HPET 0
>> > fed10000-fed19fff : reserved
>> > fed10000-fed17fff : pnp 00:09
>> > fed18000-fed18fff : pnp 00:09
>> > fed19000-fed19fff : pnp 00:09
>> > fed1c000-fed1ffff : reserved
>> > fed1c000-fed1ffff : pnp 00:09
>> > fed1f410-fed1f414 : iTCO_wdt
>> > fed20000-fed3ffff : pnp 00:09
>> > fed90000-fed90fff : dmar0
>> > fed91000-fed91fff : dmar1
>> > fee00000-fee00fff : Local APIC
>> > fee00000-fee00fff : reserved
>> > ff000000-ff000fff : pnp 00:09
>> > ffb80000-ffffffff : reserved
>> > 100000000-25f5fffff : System RAM
>> > 25f600000-25fffffff : RAM buffer
>> >
>> >
>> > - - PCI information ('lspci -vvv' as root)
>> >
>> > 00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM
>> > Controller (rev 09)
>> > Subsystem: Dell Device 05b8
>> > Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
>> > Stepping- SERR- FastB2B- DisINTx-
>> > Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
>> > <TAbort- <MAbort+ >SERR- <PERR- INTx-
>> > Latency: 0
>> > Capabilities: [e0] Vendor Specific Information: Len=0c <?>
>> >
>> > 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core
>> > processor PCI Express Root Port (rev 09) (prog-if 00 [Normal decode])
>> > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
>> > Stepping- SERR- FastB2B- DisINTx+
>> > Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
>> > <TAbort- <MAbort- >SERR- <PERR- INTx-
>> > Latency: 0, Cache Line Size: 64 bytes
>> > Bus: primary=00, secondary=01, subordinate=06, sec-latency=0
>> > I/O behind bridge: 00003000-00003fff
>> > Memory behind bridge: c0000000-c0ffffff
>> > Prefetchable memory behind bridge: 00000000a0000000-00000000afffffff
>> > Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort-
>> > <TAbort- <MAbort+ <SERR- <PERR-
>> > BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
>> > PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
>> > Capabilities: [88] Subsystem: Dell Device 05b8
>> > Capabilities: [80] Power Management version 3
>> > Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
>> > PME(D0+,D1-,D2-,D3hot+,D3cold+)
>> > Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
>> > Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
>> > Address: fee002f8 Data: 0000
>> > Capabilities: [a0] Express (v2) Root Port (Slot+), MSI 00
>> > DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <64ns,
>> > L1 <1us
>> > ExtTag- RBE+ FLReset-
>> > DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
>> > Unsupported-
>> > RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
>> > MaxPayload 256 bytes, MaxReadReq 128 bytes
>> > DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr-
>> > TransPend-
>> > LnkCap: Port #2, Speed 5GT/s, Width x8, ASPM L0s L1, Latency
>> > L0 <256ns, L1 <8us
>> > ClockPM- Surprise- LLActRep- BwNot+
>> > LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain-
>> CommClk+
>> > ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
>> > LnkSta: Speed 5GT/s, Width x8, TrErr- Train- SlotClk+
>> > DLActive- BWMgmt+ ABWMgmt-
>> > SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug-
>> > Surprise-
>> > Slot #1, PowerLimit 75.000W; Interlock- NoCompl+
>> > SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt-
>> > HPIrq- LinkChg-
>> > Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
>> > SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+
>> > Interlock-
>> > Changed: MRL- PresDet+ LinkState-
>> > RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna-
>> > CRSVisible-
>> > RootCap: CRSVisible-
>> > RootSta: PME ReqID 0000, PMEStatus- PMEPending-
>> > DevCap2: Completion Timeout: Not Supported, TimeoutDis- ARIFwd-
>> > DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- ARIFwd-
>> > LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-,
>> > Selectable De-emphasis: -3.5dB
>> > Transmit Margin: Normal Operating Range,
>> > EnterModifiedCompliance- ComplianceSOS-
>> > Compliance De-emphasis: -6dB
>> > LnkSta2: Current De-emphasis Level: -3.5dB,
>> > EqualizationComplete-, EqualizationPhase1-
>> > EqualizationPhase2-, EqualizationPhase3-,
>> > LinkEqualizationRequest-
>> > Capabilities: [100 v1] Virtual Channel
>> > Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
>> > Arb: Fixed- WRR32- WRR64- WRR128-
>> > Ctrl: ArbSelect=Fixed
>> > Status: InProgress-
>> > VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
>> > Arb: Fixed+ WRR32- WRR64- WRR128- TWRR128- WRR256-
>> > Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=ff
>> > Status: NegoPending- InProgress-
>> > Capabilities: [140 v1] Root Complex Link
>> > Desc: PortNumber=02 ComponentID=01 EltType=Config
>> > Link0: Desc: TargetPort=00 TargetComponent=01 AssocRCRB-
>> > LinkType=MemMapped LinkValid+
>> > Addr: 00000000fed19000
>> > Kernel driver in use: pcieport
>> >
>> > 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core
>> > processor Graphics Controller (rev 09) (prog-if 00 [VGA controller])
>> > Subsystem: Dell Device 05b8
>> > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
>> > Stepping- SERR- FastB2B- DisINTx+
>> > Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
>> > <TAbort- <MAbort- >SERR- <PERR- INTx-
>> > Latency: 0
>> > Interrupt: pin A routed to IRQ 46
>> > Region 0: Memory at c1000000 (64-bit, non-prefetchable) [size=4M]
>> > Region 2: Memory at b0000000 (64-bit, prefetchable) [size=256M]
>> > Region 4: I/O ports at 4000 [size=64]
>> > Expansion ROM at <unassigned> [disabled]
>> > Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
>> > Address: fee00018 Data: 0000
>> > Capabilities: [d0] Power Management version 2
>> > Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
>> > PME(D0-,D1-,D2-,D3hot-,D3cold-)
>> > Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
>> > Capabilities: [a4] PCI Advanced Features
>> > AFCap: TP+ FLR+
>> > AFCtrl: FLR-
>> > AFStatus: TP-
>> > Kernel driver in use: i915
>> >
>> > 00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series
>> > Chipset Family MEI Controller #1 (rev 04)
>> > Subsystem: Dell Device 05b8
>> > Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
>> > Stepping- SERR- FastB2B- DisINTx+
>> > Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
>> > <TAbort- <MAbort- >SERR- <PERR- INTx-
>> > Latency: 0
>> > Interrupt: pin A routed to IRQ 48
>> > Region 0: Memory at c1614000 (64-bit, non-prefetchable) [size=16]
>> > Capabilities: [50] Power Management version 3
>> > Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
>> > PME(D0+,D1-,D2-,D3hot+,D3cold+)
>> > Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
>> > Capabilities: [8c] MSI: Enable+ Count=1/1 Maskable- 64bit+
>> > Address: 00000000fee003b8 Data: 0000
>> > Kernel driver in use: mei_me
>> >
>> > 00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset
>> > Family PCI Express Root Port 1 (rev c4) (prog-if 00 [Normal decode])
>> > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
>> > Stepping- SERR- FastB2B- DisINTx-
>> > Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
>> > <TAbort- <MAbort- >SERR- <PERR- INTx-
>> > Latency: 0, Cache Line Size: 64 bytes
>> > Bus: primary=00, secondary=07, subordinate=07, sec-latency=0
>> > I/O behind bridge: 00002000-00002fff
>> > Memory behind bridge: fff00000-000fffff
>> > Prefetchable memory behind bridge: 00000000c1400000-00000000c14fffff
>> > Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort-
>> > <TAbort- <MAbort+ <SERR- <PERR-
>> > BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
>> > PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
>> > Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
>> > DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns,
>> > L1 <1us
>> > ExtTag- RBE+ FLReset-
>> > DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
>> > Unsupported-
>> > RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
>> > MaxPayload 128 bytes, MaxReadReq 128 bytes
>> > DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq- AuxPwr+
>> > TransPend-
>> > LnkCap: Port #1, Speed 5GT/s, Width x1, ASPM L0s L1, Latency
>> > L0 <512ns, L1 <16us
>> > ClockPM- Surprise- LLActRep+ BwNot-
>> > LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain-
>> CommClk+
>> > ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
>> > LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+
>> > DLActive+ BWMgmt+ ABWMgmt-
>> > SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug-
>> > Surprise-
>> > Slot #0, PowerLimit 10.000W; Interlock- NoCompl+
>> > SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt-
>> > HPIrq- LinkChg-
>> > Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
>> > SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+
>> > Interlock-
>> > Changed: MRL- PresDet+ LinkState+
>> > RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna-
>> > CRSVisible-
>> > RootCap: CRSVisible-
>> > RootSta: PME ReqID 0000, PMEStatus- PMEPending-
>> > DevCap2: Completion Timeout: Range BC, TimeoutDis+ ARIFwd-
>> > DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- ARIFwd-
>> > LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-,
>> > Selectable De-emphasis: -6dB
>> > Transmit Margin: Normal Operating Range,
>> > EnterModifiedCompliance- ComplianceSOS-
>> > Compliance De-emphasis: -6dB
>> > LnkSta2: Current De-emphasis Level: -3.5dB,
>> > EqualizationComplete-, EqualizationPhase1-
>> > EqualizationPhase2-, EqualizationPhase3-,
>> > LinkEqualizationRequest-
>> > Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
>> > Address: 00000000 Data: 0000
>> > Capabilities: [90] Subsystem: Dell Device 05b8
>> > Capabilities: [a0] Power Management version 2
>> > Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
>> > PME(D0+,D1-,D2-,D3hot+,D3cold+)
>> > Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
>> > Kernel driver in use: pcieport
>> >
>> > 00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset
>> > Family PCI Express Root Port 2 (rev c4) (prog-if 00 [Normal decode])
>> > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
>> > Stepping- SERR- FastB2B- DisINTx-
>> > Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
>> > <TAbort- <MAbort- >SERR- <PERR- INTx-
>> > Latency: 0, Cache Line Size: 64 bytes
>> > Bus: primary=00, secondary=08, subordinate=08, sec-latency=0
>> > I/O behind bridge: 0000f000-00000fff
>> > Memory behind bridge: c1500000-c15fffff
>> > Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff
>> > Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort-
>> > <TAbort- <MAbort- <SERR- <PERR-
>> > BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
>> > PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
>> > Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
>> > DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns,
>> > L1 <1us
>> > ExtTag- RBE+ FLReset-
>> > DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
>> > Unsupported-
>> > RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
>> > MaxPayload 128 bytes, MaxReadReq 128 bytes
>> > DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+
>> > TransPend-
>> > LnkCap: Port #2, Speed 5GT/s, Width x1, ASPM L0s L1, Latency
>> > L0 <512ns, L1 <16us
>> > ClockPM- Surprise- LLActRep+ BwNot-
>> > LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain-
>> CommClk+
>> > ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
>> > LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+
>> > DLActive+ BWMgmt+ ABWMgmt-
>> > SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug-
>> > Surprise-
>> > Slot #1, PowerLimit 10.000W; Interlock- NoCompl+
>> > SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt-
>> > HPIrq- LinkChg-
>> > Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
>> > SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+
>> > Interlock-
>> > Changed: MRL- PresDet- LinkState-
>> > RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna-
>> > CRSVisible-
>> > RootCap: CRSVisible-
>> > RootSta: PME ReqID 0000, PMEStatus- PMEPending-
>> > DevCap2: Completion Timeout: Range BC, TimeoutDis+ ARIFwd-
>> > DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- ARIFwd-
>> > LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-,
>> > Selectable De-emphasis: -6dB
>> > Transmit Margin: Normal Operating Range,
>> > EnterModifiedCompliance- ComplianceSOS-
>> > Compliance De-emphasis: -6dB
>> > LnkSta2: Current De-emphasis Level: -3.5dB,
>> > EqualizationComplete-, EqualizationPhase1-
>> > EqualizationPhase2-, EqualizationPhase3-,
>> > LinkEqualizationRequest-
>> > Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
>> > Address: 00000000 Data: 0000
>> > Capabilities: [90] Subsystem: Dell Device 05b8
>> > Capabilities: [a0] Power Management version 2
>> > Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
>> > PME(D0+,D1-,D2-,D3hot+,D3cold+)
>> > Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
>> > Kernel driver in use: pcieport
>> >
>> > 00:1f.0 ISA bridge: Intel Corporation HM76 Express Chipset LPC
>> > Controller (rev 04)
>> > Subsystem: Dell Device 05b8
>> > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
>> > Stepping- SERR- FastB2B- DisINTx-
>> > Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
>> > <TAbort- <MAbort- >SERR- <PERR- INTx-
>> > Latency: 0
>> > Capabilities: [e0] Vendor Specific Information: Len=0c <?>
>> > Kernel driver in use: lpc_ich
>> >
>> >
>> > 00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family
>> > SMBus Controller (rev 04)
>> > Subsystem: Dell Device 05b8
>> > Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
>> > Stepping- SERR- FastB2B- DisINTx-
>> > Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
>> > <TAbort- <MAbort- >SERR- <PERR- INTx-
>> > Interrupt: pin C routed to IRQ 0
>> > Region 0: Memory at c1615000 (64-bit, non-prefetchable) [size=256]
>> > Region 4: I/O ports at 4040 [size=32]
>> >
>> > 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
>> > [AMD/ATI] Mars [Radeon HD 8730M] (prog-if 00 [VGA controller])
>> > Subsystem: Dell Device 05b8
>> > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
>> > Stepping- SERR- FastB2B- DisINTx+
>> > Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
>> > <TAbort- <MAbort- >SERR- <PERR- INTx-
>> > Latency: 0, Cache Line Size: 64 bytes
>> > Interrupt: pin A routed to IRQ 47
>> > Region 0: Memory at a0000000 (64-bit, prefetchable) [size=256M]
>> > Region 2: Memory at c0000000 (64-bit, non-prefetchable) [size=256K]
>> > Region 4: I/O ports at 3000 [size=256]
>> > Expansion ROM at c0040000 [disabled] [size=128K]
>> > Capabilities: [48] Vendor Specific Information: Len=08 <?>
>> > Capabilities: [50] Power Management version 3
>> > Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
>> > PME(D0-,D1+,D2+,D3hot+,D3cold-)
>> > Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
>> > Capabilities: [58] Express (v2) Legacy Endpoint, MSI 00
>> > DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <4us,
>> > L1 unlimited
>> > ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
>> > DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
>> > Unsupported-
>> > RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
>> > MaxPayload 256 bytes, MaxReadReq 512 bytes
>> > DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr-
>> > TransPend-
>> > LnkCap: Port #0, Speed 5GT/s, Width x8, ASPM L0s L1, Latency
>> > L0 <64ns, L1 <1us
>> > ClockPM- Surprise- LLActRep- BwNot-
>> > LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain-
>> CommClk+
>> > ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
>> > LnkSta: Speed 5GT/s, Width x8, TrErr- Train- SlotClk+
>> > DLActive- BWMgmt- ABWMgmt-
>> > DevCap2: Completion Timeout: Not Supported, TimeoutDis-
>> > DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
>> > LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-,
>> > Selectable De-emphasis: -6dB
>> > Transmit Margin: Normal Operating Range,
>> > EnterModifiedCompliance- ComplianceSOS-
>> > Compliance De-emphasis: -6dB
>> > LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-,
>> > EqualizationPhase1-
>> > EqualizationPhase2-, EqualizationPhase3-,
>> > LinkEqualizationRequest-
>> > Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
>> > Address: 00000000fee00398 Data: 0000
>> > Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1
>> > Len=010 <?>
>> > Capabilities: [150 v2] Advanced Error Reporting
>> > UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt-
>> > RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
>> > UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt-
>> > RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
>> > UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt-
>> > RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
>> > CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
>> > CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
>> > AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+
>> ChkEn-
>> > Capabilities: [270 v1] #19
>> > Kernel driver in use: radeon
>> >
>> >
>> >
>> > -----BEGIN PGP SIGNATURE-----
>> > Version: GnuPG v1.4.14 (GNU/Linux)
>> > Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/
>> >
>> > iQEcBAEBAgAGBQJSVnfwAAoJEEHdPmHFlwgRUfkIAIaKkmrveaxgpKrLxDvF9yMd
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>> > 2pcvvicTyihskDt6JhAeE5qWZgsAni7wTYXBrxYX21JnUHMGEukqlJfDZ5M0AIg=
>> > =oDP3
>> > -----END PGP SIGNATURE-----
>> >
>> > _______________________________________________
>> > Intel-gfx mailing list
>> > Intel-gfx@lists.freedesktop.org
>> > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
>>
>> --
>> Jani Nikula, Intel Open Source Technology Center
>>
--
Jani Nikula, Intel Open Source Technology Center
next prev parent reply other threads:[~2013-10-14 9:32 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-10 9:48 [Dell Inspiron 15R 5521] Can't toggle backlight brightness Nicolas Devillers
2013-10-14 8:04 ` Jani Nikula
2013-10-14 8:40 ` Nicolas Devillers
2013-10-14 9:33 ` Jani Nikula [this message]
2013-10-25 11:34 ` Nicolas Devillers
2013-10-28 12:20 ` Jani Nikula
2013-10-29 10:47 ` Nicolas Devillers
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