#763427 xserver-xorg: Setting to max resolution works briefly, then display detects no signal, works on other versions.

Package:
xserver-xorg
Source:
xorg
Description:
X.Org X server
Submitter:
Nate Coraor
Date:
2014-09-30 08:27:12 UTC
Severity:
important
#763427#5
Date:
2014-09-29 20:49:18 UTC
From:
To:
The display is capable of 2560x1600 @ 60Hz, which is detected from the EDID
response. When changing to this resolution (e.g. on X server startup), the
desktop will display briefly (0.5-2 seconds) at the correct resolution, and
then the display (Dell U3014) reports "no signal" and goes in to power save
mode.

I suspected a hardware issue, but the 2560x1600 resolution works fine on this
hardware with:

 - The console
 - The Jessie Beta 1 graphical installer
 - The Ubuntu 14.04.1 installer
 - Ubuntu 14.04.1 itself