Bug#488277: xserver-xorg-video-radeon: No longer uses correct resolution when a second screen is connected

[Alex Deucher]

On Thu, Sep 25, 2008 at 9:37 PM, Leo Spalteholz
<leo.spalteholz at gmail.com> wrote:
> On Wed, Jul 16, 2008 at 10:36 AM, Alex Deucher <alexdeucher at gmail.com> wrote:
>> On Sat, Jul 12, 2008 at 1:36 PM, Leo Spalteholz
>> <leo.spalteholz at gmail.com> wrote:
>>> On Fri, Jul 11, 2008 at 4:29 PM, Leo Spalteholz
>>> <leo.spalteholz at gmail.com> wrote:
>>>> <snip>
>>>>
>>>> I'm going to try and downgrade if I can find a package to see if that fixes it.
>>>>
>>>> Leo
>>>>
>>>
>>> Downgraded to xserver-xorg-video-ati 6.8.0 (I couldn't find anything
>>> more recent but earlier than 6.9.0) and everything works again.  The
>>> external monitor outputs at native res of 1680x1050.
>>>
>>
>> Can you attach the logs can configs from both drivers?
>
> Sorry this took so long..  Just tried to upgrade again Xorg 7.4, ati
> 6.9.0+git20080826 (newest package) and the problem still exists, sort
> of..
> Starting up, the external monitor was set at 1024x768...  Usually I
> use a script to disable the laptop monitor and enable the external one
> like this:
> #!/bin/bash
> xrandr --output VGA-0 --auto
> xrandr --output LVDS --off
> That used to put the external monitor into full native res with 6.8.0,
> but no longer.   Messing with the KDE4 display settings for a long
> time, switching resolutions around, eventually I got it to display at
> 1680, but I'm sure if I restart it'll mess up again...

The difference is that you are using xserver 1.5.1 with ati 6.9.0 and
xserver 1.4.2 with ati 6.8.0.  The xserver selects the initial modes
and the selection logic in the xserver changed between 1.4.x and
1.5.x.

Alex