Re: Bug#703291: [xserver-xorg-video-nouveau] Dual display problem: Using xrandr to setup dual displays causes X to hang
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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.
>
> On 2013-03-18 02:05 +0100, Guy Heatley wrote:
>
>> Package: xserver-xorg-video-nouveau Version: 1:1.0.1-5 Severity:
>> important
>>
>> --- Please enter the report below this line. ---
>>
>> Since upgrading my (Wheezy) desktop machine a couple of days ago
>> with APT, my dual-display setup has stopped working.
>
> I assume that the last upgrade was less than half a year ago? If
> so, it's almost certainly a problem with the latest kernel.
Yes.
>> Anyway, I boot with the "drm_kms_helper.poll=0" in my grub.cfg to
>> prevent constant futile polling. I don't know if this has any
>> bearing?
>
> Remove that parameter to find out.
Yep its a red herring: it just makes the 2nd screen flicker every
couple of seconds, if I remove it.
> 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.
- --
Guy
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