Bug#703291: [xserver-xorg-video-nouveau] Dual display problem: Using xrandr to setup dual displays causes X to hang
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The 3.8 kernel doesn't fix this. I can't get any output on DVI-I-1
using xrandr:
% xrandr
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 8192 x 8192
VGA-1 connected 1280x1024+0+0 (normal left inverted right x axis y
axis) 380mm x 300mm
1280x1024 60.0*+ 75.0
1152x864 75.0
1024x768 75.1 70.1 60.0
832x624 74.6
800x600 72.2 75.0 60.3
640x480 72.8 75.0 60.0
720x400 70.1
DVI-I-1 disconnected (normal left inverted right x axis y axis)
1280x1024_60.00 59.9
But, there are no system hangs caused by the use of xrandr - it just
fails to work:
% xrandr --output DVI-I-1 --mode 1280x1024_60.00 --left-of VGA-1 --dpi 96
xrandr: Configure crtc 1 failed
I shall file a bug report at freedesktop.org
Cheers!
- --
Guy
On 19/03/13 19:39, Sven Joachim wrote:
> On 2013-03-18 22:44 +0100, Guy Heatley wrote:
>
>> Sven - I can confirm that your downgrading suggestion fixes this
>> problem.
>>
>> On 18/03/13 17:03, Sven Joachim wrote:
>>> Kernel folks, this appears to be a regression resulting from
>>> the DRM 3.4 backport.
>>
>>> Can you confirm that downgrading linux-image-3.2.0-4-amd64 to
>>> 3.2.35-2 (available on snapshots.debian.org[1]) fixes the
>>> problem?
>>
>> Yes, this fixes it.
>
> Could you please try a 3.8 kernel from experimental (requires
> initramfs-tools from experimental as well)? If the problem
> persists, file a bug on https://bugs.freedesktop.org/. Choose
> product xorg, component Driver/nouveau, and let us know the bug
> number.
>
> Cheers, Sven
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