Bug#416666: xserver-xorg-video-ati: restarting X breaks resolution on powerbook

Michel Dänzer daenzer at debian.org
Fri Mar 30 00:41:45 PDT 2007

On Thu, 2007-03-29 at 16:20 +0200, Johannes Berg wrote:
> Package: xserver-xorg-video-ati
> Version: 1:6.6.3-2
> Severity: normal
> Whenever I log out from X and log in back or restart X in any other way, the
> display resolution is set to something hideous like 640x480 instead of the
> configured resolution.
> The x server log for the broken case is attached, I'll send one for the good
> case as well.


> (II) RADEON(0): Secondary:
>  Monitor   -- CRT
>  Connector -- VGA
>  DAC Type  -- Primary
>  TMDS Type -- External
>  DDC Type  -- VGA_DDC

It's probably due to this (non-existing I presume) external display
being detected. There's a known bug where MergedFB can limit the
resolution of the primary display based on the limits of the secondary
one. If you don't need an external display, you can disable MergedFB
with Option "MergedFB" "off" or Option "MonitorLayout" "LVDS,NONE".

Earthling Michel Dänzer           |          http://tungstengraphics.com
Libre software enthusiast         |          Debian, X and DRI developer

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