https://bugs.freedesktop.org/show_bug.cgi?id=49061
Bug #: 49061
Summary: HDMI output clipped since commit of 'enable sending of
avi/audio infoframes'
Classification: Unclassified
Product: xorg
Version: git
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Driver/nouveau
AssignedTo: [email protected]
ReportedBy: [email protected]
QAContact: [email protected]
Created attachment 60467
--> https://bugs.freedesktop.org/attachment.cgi?id=60467
drm output from 'dmesg' and output of 'xrandr --verbose' to hopefully describe
my setup
Since some time now 1920x1200 output on HDMI port of my nv50 based card shows
two black bands on the left and right side of the screen. It's clipping (i.e.
pieces of the desktop are not drawn), resolution seems to be correct.
bisecting of the linux kernel got me here:
b2337f2333c0bdefc9b230da17ed7188e4eb7f6c is the first bad commit
commit b2337f2333c0bdefc9b230da17ed7188e4eb7f6c
Author: Ben Skeggs <[email protected]>
Date: Wed Oct 5 14:59:14 2011 +1000
drm/nouveau/hdmi: enable sending of avi/audio infoframes
Signed-off-by: Ben Skeggs <[email protected]>
:040000 040000 edc0d0e6f57362c38edb0845cf19ee076a045f0b
364748b5ea73b322991331396fb218d8afd65fe7 M drivers
And indeed taking out these changes from the current 3.4.0-rc4 kernel seems to
solve my problem.
Seems this enabling of avi/audio infoframes has some bad side effect for my
hardware.
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