[Intel-gfx] Screen not turned on in kernel 2.6.35

Paul Neumann paul104x at yahoo.de
Sat Aug 7 20:09:32 CEST 2010


when I use kernel 2.6.35 my screen (connected via DVI) is not turned on. Everything else works fine so I can ssh into the machine and safely shut it down. This did not happen with 2.6.34. However I know that the issue is caused by that commit


If I revert that patch everything works as expected.

My graphics card is

00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)

The interesting dmesg part is

i915 0000:00:02.0: BAR 6: can't assign [??? 0x00000000 flags 0x0] (bogus alignment)
[drm] failed to find VBIOS tables
[drm] initialized overlay support
No connectors reported connected with modes
[drm] Cannot find any crtc or sizes - going 1024x768
Console: switching to colour frame buffer device 128x48

and xrandr shows

Screen 0: minimum 320 x 200, current 1024 x 768, maximum 4096 x 4096
VGA1 disconnected (normal left inverted right x axis y axis)
DVI1 disconnected (normal left inverted right x axis y axis)

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