From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 49789] New: External monitor flickers on xrandr or cat /sys/class/drm/card0-VGA-1/status
Date: Fri, 11 May 2012 11:37:34 +0000 [thread overview]
Message-ID: <bug-49789-502@http.bugs.freedesktop.org/> (raw)
https://bugs.freedesktop.org/show_bug.cgi?id=49789
Bug #: 49789
Summary: External monitor flickers on xrandr or cat
/sys/class/drm/card0-VGA-1/status
Classification: Unclassified
Product: DRI
Version: XOrg CVS
Platform: x86-64 (AMD64)
OS/Version: All
Status: NEW
Severity: normal
Priority: medium
Component: DRM/Radeon
AssignedTo: dri-devel@lists.freedesktop.org
ReportedBy: h.judt@gmx.at
Created attachment 61441
--> https://bugs.freedesktop.org/attachment.cgi?id=61441
Xorg.log
This issue is not reproducible with every external monitor, as far as I could
determine only projectors are concerned:
When I connect a monitor/projector to the VGA port of the Lenovo T400 and
perform "xrandr" or "cat /sys/class/drm/card0-VGA-1/status", the external
monitor flickers (parts of the screen black out horizontally). Since I use a
script which performs these commands periodically to detect whether the monitor
is still connected, this is obviously very annoying.
Changing the power profile doesn't have any effect.
lspci:
01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RV620
[Mobility Radeon HD 3400 Series] (prog-if 00 [VGA controller])
Subsystem: Lenovo Device 210e
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 45
Region 0: Memory at d0000000 (32-bit, prefetchable) [size=256M]
Region 1: I/O ports at 2000 [size=256]
Region 2: Memory at cfff0000 (32-bit, non-prefetchable) [size=64K]
[virtual] Expansion ROM at cff00000 [disabled] [size=128K]
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 128 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 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr-
TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x16, 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 2.5GT/s, Width x16, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Not Supported, TimeoutDis-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
LnkCtl2: Target Link Speed: 2.5GT/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: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee0100c Data: 41a1
Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1
Len=010 <?>
Kernel driver in use: radeon
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next reply other threads:[~2012-05-11 11:37 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-11 11:37 bugzilla-daemon [this message]
2012-05-11 11:38 ` [Bug 49789] External monitor flickers on xrandr or cat /sys/class/drm/card0-VGA-1/status bugzilla-daemon
2012-05-11 14:50 ` bugzilla-daemon
2012-05-11 15:10 ` bugzilla-daemon
2012-05-11 17:23 ` bugzilla-daemon
2012-05-15 9:01 ` bugzilla-daemon
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