Ever since the upgrade to 3.3 I've had a pinkish purple vertical line down the left hand side of the screen that's probably 2-5px wide. It happens early in the boot process (I imagine as soon as KMS in engaged). I've had a look through the boot log but can't see anything suspect, but then I don't really know what I'm looking for. Anyone who can give some help in where to look for additional information to help resolve this would be most appreciated.
I should add this is a Sapphire Radeon HD6950 plugged into a Samsung HD TV via a HDMI cable. lspci -vvv output 03:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Cayman PRO [Radeon HD 6950] (prog-if 00 [VGA controller]) Subsystem: PC Partner Limited Device 186b 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 e0000000 (64-bit, prefetchable) [size=256M] Region 2: Memory at fb5c0000 (64-bit, non-prefetchable) [size=128K] Region 4: I/O ports at be00 [size=256] [virtual] Expansion ROM at fb500000 [disabled] [size=128K] Capabilities: <access denied> Kernel driver in use: radeon
Did you enable hdmi audio? Try making sure radeon.audio=0
Looks like I do, I'll have to wait until I get back from work to see whether that fixes it, thanks!
Just a note that might help debugging: I see a purple vertical line on the left hand side of the screen when I send AVI InfoFrames to a DVI monitor. Also, when I do this, some modes don't work, other modes look really buggy.
The purple line is caused by setting the digital encoder into HDMI mode and then not sending the proper infoframes.
Hi, Setting radeon.audio=0 has resolved the problem. I still had radeon.audio=1 set in a modprobe.d file left over from when I had a HD4870. Thanks for the help!