| Summary: | [gm45 regression] xf86-video-intel-2.21.11 HDMI problems | ||||||||||||||
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| Product: | DRI | Reporter: | Felix <felixbuettner> | ||||||||||||
| Component: | DRM/Intel | Assignee: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||||||||||
| Status: | CLOSED DUPLICATE | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||||||||||
| Severity: | normal | ||||||||||||||
| Priority: | medium | ||||||||||||||
| Version: | unspecified | ||||||||||||||
| Hardware: | x86-64 (AMD64) | ||||||||||||||
| OS: | Linux (All) | ||||||||||||||
| Whiteboard: | |||||||||||||||
| i915 platform: | i915 features: | ||||||||||||||
| Attachments: |
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The logfile from 2.21.11 is important as well, and please double check with master. Created attachment 82291 [details]
xorg.log from xf86-video-intel-2.21.11
Of course, please find it attached.
Ok, that looks reasonably sane. Can you please boot with drm.debug=6 and attach dmesg for both 2.21.10 and 2.21.11? Created attachment 82322 [details]
dmesg driver version 2.21.10
Created attachment 82323 [details]
dmesg driver version 2.21.11
Created attachment 82324 [details]
photo of the corrupted output
And the actual modesetting sequence looks identical in the two dmesg. Curious. The next step is to grab intel_reg_dumper (from http://cgit.freedesktop.org/xorg/app/intel-gpu-tools) and attach the output for 2.21.10 and 2.21.11. Fun one ... can you please try to bisect what exact change in the ddx cause this regression? Actually, I know what this is now. Thinking cap clearly not on, as this is commit ebf4517a0bb510e406795c169aa21b7cc615ed31 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Wed Jul 3 22:44:46 2013 +0100 sna: Always read back the gamma, even for a inactive CRTC *** This bug has been marked as a duplicate of bug 66563 *** |
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Created attachment 82278 [details] xorg.log Hi, I just noticed a bug in the xf86-video-intel-2.21.11 drivers. With my Intel GMA 4500 MHD graphics chip, the HDMI output signal is corrupt: only the red color is displayed, the green and blue pixels remain dark. The issue is solved by downgrading to version 2.21.10-r1. kernel: 3.9.6 os: Gentoo linux x-org.conf: Section "Monitor" Identifier "LVDS0" Option "DPMS" "false" EndSection Section "ServerLayout" Identifier "ServerLayout0" Option "BlankTime" "0" Option "StandbyTime" "0" Option "SuspendTime" "0" Option "OffTime" "0" EndSection