Re: DVBSky T980C CI issues (kernel 4.0.x)

[Torbjorn Jansson <torbjorn.jansson@mbox200.swipnet.se>]

already done, see mail i sent to the list 2016-02-06 with subject 
"dvb_usb_dvbsky module not loading (ida_remove something)"
i dont know if more info is needed or not.


On 2016-02-18 06:56, Olli Salonen wrote:
> Hi Torbjörn,
>
> If you did bisect this, can you please send the bisect result and a
> description of the issue to the linux-media mailing list and to the
> author of the commit that caused the problem?
>
> Thanks!
>
> Cheers,
> -olli
>
> On 18 February 2016 at 00:15, Torbjorn Jansson
> <torbjorn.jansson@mbox200.swipnet.se> wrote:
>> retested with media_tree at commit: 13f6e8887a1f61764a05a3348476d38071201f08
>> this is the most recent one that i bisected before that doesn't result in
>> module load problems.
>>
>> with my patch to add the new revision of the 4650 usb device and above
>> commit plus your proposed change to si2168.c did not produce any different
>> result.
>> still problems tuning dvbt2 channels.
>>
>> i also tested my updated tuning file for dvbv5-scan with my other usb stick:
>> Bus 001 Device 004: ID 2013:024f PCTV Systems nanoStick T2 290e
>> to confirm the scanning input file was good and it was.
>> the pctv stick can properly tune the t2 muxes.
>>
>>
>>
>> On 2016-02-17 22:54, Torbjorn Jansson wrote:
>>>
>>> testing is likely to be a bit problematic because using the most recent
>>> code from media_tree results in the following during module load and
>>> after this the modules are not loaded properly (/dev/dvb missing)
>>>
>>> i will retry with older code.
>>>
>>>
>>> [    5.558524] WARNING: You are using an experimental version of the
>>> media stack.
>>>                   As the driver is backported to an older kernel, it
>>> doesn't offer
>>>                   enough quality for its usage in production.
>>>                   Use it with care.
>>>                  Latest git patches (needed if you report a bug to
>>> linux-media@vger.kernel.org):
>>>                   3d0ccad0dbbd51b64d307c64cc163002334afbfa [media] siano:
>>> use generic function to create MC device
>>>                   dd47fbd40e6ea6884e295e13a2e50b0894258fdf [media]
>>> smsusb: don't sleep while atomic
>>>                   21cf734c79e6c741dcdf383dbaef3b551b931568 [media] siano:
>>> firmware buffer is too small
>>> [    5.750834] usb 1-2: dvb_usb_v2: found a 'TechnoTrend TT-connect
>>> CT2-4650 CI v1.1' in warm state
>>> [    5.751737] usb 1-2: dvb_usb_v2: will pass the complete MPEG2
>>> transport stream to the software demuxer
>>> [    5.751754] DVB: registering new adapter (TechnoTrend TT-connect
>>> CT2-4650 CI v1.1)
>>> [    5.751799] usb 1-2: media controller created
>>> [    5.754172] usb 1-2: dvb_usb_v2: MAC address: bc:ea:2b:65:06:6f
>>> [    5.754527] dvb_create_media_entity: media entity 'dvb-demux'
>>> registered.
>>> [    5.761734] i2c i2c-1: Added multiplexed i2c bus 2
>>> [    5.761738] si2168 1-0064: Silicon Labs Si2168 successfully attached
>>> [    5.767308] si2157 2-0060: Silicon Labs Si2147/2148/2157/2158
>>> successfully attached
>>> [    5.776422] dvb_create_media_entity: media entity 'dvb-ca-en50221'
>>> registered.
>>> [    5.777199] sp2 1-0040: CIMaX SP2 successfully attached
>>> [    5.777211] usb 1-2: DVB: registering adapter 0 frontend 0 (Silicon
>>> Labs Si2168)...
>>> [    5.777214] dvb_create_media_entity: media entity 'Silicon Labs
>>> Si2168' registered.
>>> [    5.780048] ------------[ cut here ]------------
>>> [    5.780059] WARNING: CPU: 1 PID: 568 at lib/idr.c:1051
>>> ida_remove+0xef/0x120()
>>> [    5.780060] ida_remove called for id=512 which is not allocated.
>>> [    5.780061] Modules linked in: sp2(OE) si2157(OE) si2168(OE)
>>> dvb_usb_dvbsky(OE+) m88ds3103(OE) dvb_usb_v2(OE) i2c_mux dvb_core(OE)
>>> rc_core(OE) videodev(OE) media(OE) iosf_mbi ppdev crct10dif_pclmul
>>> crc32_pclmul crc32c_intel snd_hda_codec_generic snd_hda_intel
>>> snd_hda_codec snd_hda_core snd_hwdep snd_seq snd_seq_device snd_pcm
>>> parport_pc joydev snd_timer snd parport virtio_balloon soundcore pvpanic
>>> i2c_piix4 acpi_cpufreq tpm_tis tpm qxl 8021q drm_kms_helper garp stp llc
>>> mrp virtio_blk ttm virtio_net virtio_console drm serio_raw virtio_pci
>>> virtio_ring ata_generic virtio pata_acpi
>>> [    5.780086] CPU: 1 PID: 568 Comm: systemd-udevd Tainted: G OE
>>> 4.3.4-200.fc22.x86_64 #1
>>> [    5.780087] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
>>> [    5.780089]  0000000000000000 0000000069734069 ffff88007c23b6f8
>>> ffffffff813a625f
>>> [    5.780090]  ffff88007c23b740 ffff88007c23b730 ffffffff810a07c2
>>> ffff88003680ac08
>>> [    5.780092]  ffff88003680ac08 0000000000000206 ffff88007b7a4500
>>> ffff88007b43e158
>>> [    5.780094] Call Trace:
>>> [    5.780097]  [<ffffffff813a625f>] dump_stack+0x44/0x55
>>> [    5.780100]  [<ffffffff810a07c2>] warn_slowpath_common+0x82/0xc0
>>> [    5.780102]  [<ffffffff810a085c>] warn_slowpath_fmt+0x5c/0x80
>>> [    5.780107]  [<ffffffff813bab85>] ? find_next_bit+0x15/0x20
>>> [    5.780109]  [<ffffffff813a73ff>] ida_remove+0xef/0x120
>>> [    5.780110]  [<ffffffff813a7e7b>] ida_simple_remove+0x2b/0x50
>>> [    5.780114]  [<ffffffffa022404d>]
>>> __media_device_unregister_entity+0x2d/0xd0 [media]
>>> [    5.780116]  [<ffffffffa022411c>]
>>> media_device_unregister_entity+0x2c/0x40 [media]
>>> [    5.780119]  [<ffffffffa02770ff>] dvb_media_device_free+0x1f/0x130
>>> [dvb_core]
>>> [    5.780122]  [<ffffffffa0277252>] dvb_unregister_device+0x42/0x80
>>> [dvb_core]
>>> [    5.780125]  [<ffffffffa027da05>] dvb_ca_en50221_release+0x75/0xb0
>>> [dvb_core]
>>> [    5.780127]  [<ffffffffa02af289>] sp2_remove+0x49/0xa0 [sp2]
>>> [    5.780134]  [<ffffffff815dc18b>] i2c_device_remove+0x4b/0xa0
>>> [    5.780137]  [<ffffffff814d9501>] __device_release_driver+0xa1/0x150
>>> [    5.780141]  [<ffffffff814d95d3>] device_release_driver+0x23/0x30
>>> [    5.780143]  [<ffffffff814d8c21>] bus_remove_device+0x101/0x170
>>> [    5.780145]  [<ffffffff814d4ec9>] device_del+0x139/0x260
>>> [    5.780147]  [<ffffffff813a8647>] ? kobject_put+0x27/0x50
>>> [    5.780149]  [<ffffffff815dc680>] ? __unregister_dummy+0x30/0x30
>>> [    5.780151]  [<ffffffff814d500e>] device_unregister+0x1e/0x60
>>> [    5.780153]  [<ffffffff815dc6be>] __unregister_client+0x3e/0x50
>>> [    5.780154]  [<ffffffff814d4970>] device_for_each_child+0x50/0x90
>>> [    5.780156]  [<ffffffff815de99e>] i2c_del_adapter+0x20e/0x300
>>> [    5.780166]  [<ffffffff81203ed8>] ? kfree+0x128/0x130
>>> [    5.780169]  [<ffffffffa025c974>] dvb_usbv2_exit+0x1c4/0x3c0
>>> [dvb_usb_v2]
>>> [    5.780171]  [<ffffffffa025d44f>] dvb_usbv2_probe+0xff/0x1200
>>> [dvb_usb_v2]
>>> [    5.780174]  [<ffffffff814e4619>] ? __pm_runtime_set_status+0x189/0x230
>>> [    5.780182]  [<ffffffff81570282>] usb_probe_interface+0x1b2/0x2d0
>>> [    5.780184]  [<ffffffff814d9b82>] driver_probe_device+0x222/0x480
>>> [    5.780185]  [<ffffffff814d9e64>] __driver_attach+0x84/0x90
>>> [    5.780187]  [<ffffffff814d9de0>] ? driver_probe_device+0x480/0x480
>>> [    5.780188]  [<ffffffff814d765c>] bus_for_each_dev+0x6c/0xc0
>>> [    5.780190]  [<ffffffff814d933e>] driver_attach+0x1e/0x20
>>> [    5.780191]  [<ffffffff814d8e7b>] bus_add_driver+0x1eb/0x280
>>> [    5.780193]  [<ffffffff814da6b0>] driver_register+0x60/0xe0
>>> [    5.780195]  [<ffffffff8156eb24>] usb_register_driver+0x84/0x140
>>> [    5.780196]  [<ffffffffa00bb000>] ? 0xffffffffa00bb000
>>> [    5.780199]  [<ffffffffa00bb01e>] dvbsky_usb_driver_init+0x1e/0x1000
>>> [dvb_usb_dvbsky]
>>> [    5.780202]  [<ffffffff81002123>] do_one_initcall+0xb3/0x200
>>> [    5.780206]  [<ffffffff8177d99e>] ? preempt_schedule_common+0x1e/0x40
>>> [    5.780208]  [<ffffffff8177d9dc>] ? _cond_resched+0x1c/0x30
>>> [    5.780210]  [<ffffffff8120427e>] ? kmem_cache_alloc_trace+0x19e/0x220
>>> [    5.780214]  [<ffffffff811a4947>] ? do_init_module+0x27/0x1e5
>>> [    5.780215]  [<ffffffff811a497f>] do_init_module+0x5f/0x1e5
>>> [    5.780221]  [<ffffffff811254fe>] load_module+0x201e/0x2630
>>> [    5.780223]  [<ffffffff811219c0>] ? __symbol_put+0x60/0x60
>>> [    5.780229]  [<ffffffff81229830>] ? kernel_read+0x50/0x80
>>> [    5.780231]  [<ffffffff81125d59>] SyS_finit_module+0xb9/0xf0
>>> [    5.780237]  [<ffffffff8178182e>] entry_SYSCALL_64_fastpath+0x12/0x71
>>> [    5.780239] ---[ end trace 944e313bd83469d2 ]---
>>> [    5.783508] dvb_usb_dvbsky: probe of 1-2:1.0 failed with error -12
>>> [    5.783524] usbcore: registered new interface driver dvb_usb_dvbsky
>>>
>>>
>>>
>>>
>>> On 2016-02-17 14:42, Olli Salonen wrote:
>>>>
>>>> Hi Torbjörn,
>>>>
>>>> Try commenting out this line in si2168.c and let me know if that
>>>> changes things.
>>>>
>>>>           if (c->delivery_system == SYS_DVBT2) {
>>>>                   /* select PLP */
>>>>                   cmd.args[0] = 0x52;
>>>>                   cmd.args[1] = c->stream_id & 0xff;
>>>> //              cmd.args[2] = c->stream_id == NO_STREAM_ID_FILTER ? 0
>>>> : 1;
>>>>                   cmd.wlen = 3;
>>>>                   cmd.rlen = 1;
>>>>                   ret = si2168_cmd_execute(s, &cmd);
>>>>                   if (ret)
>>>>                           goto err;
>>>>           }
>>>>
>>>>
>>>> Cheers,
>>>> -olli
>>>>
>>>> On 17 February 2016 at 08:24, Olli Salonen <olli.salonen@iki.fi> wrote:
>>>>>
>>>>> Hi Torbjörn,
>>>>>
>>>>> I connected my old v1 CT2-4650CI to my test PC and indeed, it seems
>>>>> that there's something wrong with tuning to T2 channels.
>>>>>
>>>>> Here's first a tune with the CT2-4500CI (same as DVBSky T980C) and
>>>>> then with the CT2-4650CI.
>>>>>
>>>>> olli@dl160:~$ dvbv5-zap -a 1 "Yle Teema HD" -c dvb_channel.conf -o
>>>>> teema.ts -t 10
>>>>> using demux '/dev/dvb/adapter1/demux0'
>>>>> reading channels from file 'dvb_channel.conf'
>>>>> service has pid type 06:  50
>>>>> tuning to 184500000 Hz
>>>>> video pid 316
>>>>>     dvb_set_pesfilter 316
>>>>> audio pid 880
>>>>>     dvb_set_pesfilter 880
>>>>>          (0x00)
>>>>> Lock   (0x1f) Signal= -72.00dBm C/N= 26.75dB
>>>>> Lock   (0x1f) Signal= -72.00dBm C/N= 26.50dB
>>>>> Record to file 'teema.ts' started
>>>>> copied 6478856 bytes (632 Kbytes/sec)
>>>>> Lock   (0x1f) Signal= -72.00dBm C/N= 26.50dB
>>>>>
>>>>> olli@dl160:~$ dvbv5-zap -a 0 "Yle Teema HD" -c dvb_channel.conf -o
>>>>> teema.ts -t 3
>>>>> using demux '/dev/dvb/adapter0/demux0'
>>>>> reading channels from file 'dvb_channel.conf'
>>>>> service has pid type 06:  50
>>>>> tuning to 184500000 Hz
>>>>> video pid 316
>>>>>     dvb_set_pesfilter 316
>>>>> audio pid 880
>>>>>     dvb_set_pesfilter 880
>>>>>          (0x00)
>>>>>          (0x00) Signal= -104.00dBm
>>>>>          (0x00) Signal= -104.00dBm
>>>>>
>>>>> frontend doesn't lock
>>>>>
>>>>> I'll try to look into that...
>>>>>
>>>>> Cheers,
>>>>> -olli
>>>>>
>>>>> On 17 February 2016 at 01:12, Torbjorn Jansson
>>>>> <torbjorn.jansson@mbox200.swipnet.se> wrote:
>>>>>>
>>>>>> Perfect.
>>>>>> Looks like i have some more testing to do in the next few days.
>>>>>>
>>>>>> something else, when testing my 4650 card i cant get it to tune
>>>>>> properly to
>>>>>> dvb-t2 muxes.
>>>>>> but i'm not yet sure if this is a driver issue or if i made a
>>>>>> mistake with
>>>>>> the tuning parameters since the file i use that came with the dvbv5
>>>>>> programs
>>>>>> was missing the t2 mux so i had to put that one in manually.
>>>>>>
>>>>>> so more testing is needed first and with your patch for the T980C
>>>>>> card i can
>>>>>> probably test both things at the same time.
>>>>>>
>>>>>>
>>>>>> On 2016-02-16 21:20, Olli Salonen wrote:
>>>>>>>
>>>>>>>
>>>>>>> Hi all,
>>>>>>>
>>>>>>> Found the issue and submitted a patch.
>>>>>>>
>>>>>>> The I2C buses for T980C/T2-4500CI were crossed when CI registration
>>>>>>> was moved to its own function.
>>>>>>>
>>>>>>> Cheers,
>>>>>>> -olli
>>>>>>>
>>>>>>> On 31 January 2016 at 10:55, Torbjorn Jansson
>>>>>>> <torbjorn.jansson@mbox200.swipnet.se> wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>> this ci problem is the reason i decided to buy the CT2-4650 usb based
>>>>>>>> device
>>>>>>>> instead.
>>>>>>>> but the 4650 was a slightly newer revision needing a patch i
>>>>>>>> submitted
>>>>>>>> earlier.
>>>>>>>> and also this 4650 device does not have auto switching between
>>>>>>>> dvb-t and
>>>>>>>> t2
>>>>>>>> like the dvbsky card have, so i also need an updated version of
>>>>>>>> mythtv.
>>>>>>>>
>>>>>>>> my long term wish is to not have to patch things or build custom
>>>>>>>> kernels
>>>>>>>> or
>>>>>>>> modules.
>>>>>>>> so anything done to improve the dvbsky card or the 4650 is much
>>>>>>>> appreciated.
>>>>>>>>
>>>>>>>>
>>>>>>>> On 2016-01-28 20:42, Olli Salonen wrote:
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Hi Jürgen & Mauro,
>>>>>>>>>
>>>>>>>>> I did bisect this and it seems this rather big patch broke it:
>>>>>>>>>
>>>>>>>>> 2b0aac3011bc7a9db27791bed4978554263ef079 is the first bad commit
>>>>>>>>> commit 2b0aac3011bc7a9db27791bed4978554263ef079
>>>>>>>>> Author: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
>>>>>>>>> Date:   Tue Dec 23 13:48:07 2014 -0200
>>>>>>>>>
>>>>>>>>>         [media] cx23885: move CI/MAC registration to a separate
>>>>>>>>> function
>>>>>>>>>
>>>>>>>>>         As reported by smatch:
>>>>>>>>>             drivers/media/pci/cx23885/cx23885-dvb.c:2080
>>>>>>>>> dvb_register()
>>>>>>>>> Function too hairy.  Giving up.
>>>>>>>>>
>>>>>>>>>         This is indeed a too complex function, with lots of stuff
>>>>>>>>> inside.
>>>>>>>>>         Breaking this into two functions makes it a little bit
>>>>>>>>> less hairy.
>>>>>>>>>
>>>>>>>>>         Signed-off-by: Mauro Carvalho Chehab
>>>>>>>>> <mchehab@osg.samsung.com>
>>>>>>>>>
>>>>>>>>> It's getting a bit late, so I'll call it a day now and have a
>>>>>>>>> look at
>>>>>>>>> the patch to see what goes wrong there.
>>>>>>>>>
>>>>>>>>> Cheers,
>>>>>>>>> -olli
>>>>>>>>>
>>>>>>>>> On 28 January 2016 at 20:57, Jurgen Kramer <gtmkramer@xs4all.nl>
>>>>>>>>> wrote:
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Hi Olli,
>>>>>>>>>>
>>>>>>>>>> On Thu, 2016-01-28 at 19:26 +0200, Olli Salonen wrote:
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> Hi Jürgen,
>>>>>>>>>>>
>>>>>>>>>>> Did you get anywhere with this?
>>>>>>>>>>>
>>>>>>>>>>> I have a clone of your card and was just starting to look at this
>>>>>>>>>>> issue. Kernel 3.19 seems to work ok, but 4.3 not. Did you have any
>>>>>>>>>>> time to try to pinpoint this more?
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> No, unfortunately not. I have spend a few hours adding printk's
>>>>>>>>>> but it
>>>>>>>>>> did not get me any closer what causes the issue. This really needs
>>>>>>>>>> investigation from someone who is more familiar with linux media.
>>>>>>>>>>
>>>>>>>>>> Last thing I tried was the latest (semi open) drivers from
>>>>>>>>>> dvbsky on a
>>>>>>>>>> 4.3 kernel. Here the CI and CAM registered successfully.
>>>>>>>>>>
>>>>>>>>>> Greetings,
>>>>>>>>>> Jurgen
>>>>>>>>>>
>>>>>>>>>>> Cheers,
>>>>>>>>>>> -olli
>>>>>>>>>>>
>>>>>>>>>>> On 12 September 2015 at 10:02, Jurgen Kramer <gtmkramer@xs4all.nl>
>>>>>>>>>>> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> On Fri, 2015-09-11 at 22:01 +0200, Torbjorn Jansson wrote:
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> On 2015-08-23 19:50, Jurgen Kramer wrote:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> On Sun, 2015-07-12 at 12:38 +0200, Jurgen Kramer wrote:
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> I have been running a couple of DVBSky T980C's with CIs with
>>>>>>>>>>>>>>> success
>>>>>>>>>>>>>>> using an older kernel (3.17.8) with media-build and some
>>>>>>>>>>>>>>> added patches
>>>>>>>>>>>>>>> from the mailing list.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> I thought lets try a current 4.0 kernel to see if I no longer
>>>>>>>>>>>>>>> need to be
>>>>>>>>>>>>>>> running a custom kernel. Everything works just fine except
>>>>>>>>>>>>>>> the CAM
>>>>>>>>>>>>>>> module. I am seeing these:
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> [  456.574969] dvb_ca adapter 0: Invalid PC card inserted :(
>>>>>>>>>>>>>>> [  456.626943] dvb_ca adapter 1: Invalid PC card inserted :(
>>>>>>>>>>>>>>> [  456.666932] dvb_ca adapter 2: Invalid PC card inserted :(
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> The normal 'CAM detected and initialised' messages to do show
>>>>>>>>>>>>>>> up with
>>>>>>>>>>>>>>> 4.0.8
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> I am not sure what changed in the recent kernels, what is
>>>>>>>>>>>>>>> needed to
>>>>>>>>>>>>>>> debug this?
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Jurgen
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Retest. I've isolated one T980C on another PC with kernel
>>>>>>>>>>>>>> 4.1.5, still the same 'Invalid PC card inserted :(' message.
>>>>>>>>>>>>>> Even after installed today's media_build from git no
>>>>>>>>>>>>>> improvement.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Any hints where to start looking would be appreciated!
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> cimax2.c|h do not seem to have changed. There are changes to
>>>>>>>>>>>>>> dvb_ca_en50221.c
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Jurgen
>>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> did you get it to work?
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> No, it needs a thorough debug session. So far no one seems
>>>>>>>>>>>> able to
>>>>>>>>>>>> help...
>>>>>>>>>>>>
>>>>>>>>>>>>> i got a dvbsky T980C too for dvb-t2 reception and so far the
>>>>>>>>>>>>> only
>>>>>>>>>>>>> drivers that have worked at all is the ones from dvbsky
>>>>>>>>>>>>> directly.
>>>>>>>>>>>>>
>>>>>>>>>>>>> i was very happy when i noticed that recent kernels have support
>>>>>>>>>>>>> for it
>>>>>>>>>>>>> built in but unfortunately only the modules and firmware loads
>>>>>>>>>>>>> but then
>>>>>>>>>>>>> nothing actually works.
>>>>>>>>>>>>> i use mythtv and it complains a lot about the signal, running
>>>>>>>>>>>>> femon also
>>>>>>>>>>>>> produces lots of errors.
>>>>>>>>>>>>>
>>>>>>>>>>>>> so i had to switch back to kernel 4.0.4 with mediabuild from
>>>>>>>>>>>>> dvbsky.
>>>>>>>>>>>>>
>>>>>>>>>>>>> if there were any other dvb-t2 card with ci support that had
>>>>>>>>>>>>> better
>>>>>>>>>>>>> drivers i would change right away.
>>>>>>>>>>>>>
>>>>>>>>>>>>> one problem i have with the mediabuilt from dvbsky is that at
>>>>>>>>>>>>> boot the
>>>>>>>>>>>>> cam never works and i have to first tune a channel, then remove
>>>>>>>>>>>>> and
>>>>>>>>>>>>> reinstert the cam to get it to work.
>>>>>>>>>>>>> without that nothing works.
>>>>>>>>>>>>>
>>>>>>>>>>>>> and finally a problem i ran into when i tried mediabuilt from
>>>>>>>>>>>>> linuxtv.org.
>>>>>>>>>>>>> fedora uses kernel modules with .ko.xz extension so when you
>>>>>>>>>>>>> install the
>>>>>>>>>>>>> mediabuilt modulels you get one modulename.ko and one
>>>>>>>>>>>>> modulename.ko.xz
>>>>>>>>>>>>>
>>>>>>>>>>>>> before a make install from mediabuild overwrote the needed
>>>>>>>>>>>>> modules.
>>>>>>>>>>>>> any advice on how to handle this now?
>>>>>>>>>>>>>
>>>>>>>>>>>>>