Bug#488277: I have exactly the same problem

[Alex Deucher]

On Mon, Jun 30, 2008 at 12:38 PM, Eric Valette <Eric.Valette at free.fr> wrote:
> Alex Deucher wrote:
>> On Sat, Jun 28, 2008 at 8:36 AM, Eric Valette <eric.valette at free.fr> wrote:
>>
>>> After updating to the new xserver on my nc6000 HP LAPTOP, the screen
>>> connected on the docking station that can only do 1280x1024 is forced at
>>> the flat panel resolution that is actually 1400x1050 meaning I see only
>>> part of the screen on my external LCD monitor. If I force to change the
>>> resolution to 1280x1024 using xrandr, it just kill the external display.
>>>  Restoring the initial 1400x1050 does not restore the video on the
>>> external dipslay. To restore it I have to call xrandr --auto and then Im
>>> back to 1400x1050.
>>>
>>
>> Make sure you use the xrandr 1.2 interface, using the old xrandr 1.0
>> interface (xrandr -s) will not work correctly as it has no concept of
>> multiple heads.
>> xrandr --output VGA-0 --mode 1280x1024
>> or
>> xrandr --output LVDS --mode 1280x1024
>>
>
> If you look at my post you will see that i4m using the new one

Sorry, I must have missed that one.

>>
>>> Of course, I did not change my xorg.conf at the beginning. Googling a
>>> little bit I have added the new Randr 1.2 option to attach a specific
>>> monitor to a specific video output (external LCD->VGA-0, Flat Panel to
>>> LDVS). They are correctly associated now, but it did not change the
>>> behavior.
>>>
>>
>> The modes line from your config is part of the problem, the modes in
>> that line will get added as preferred modes to every output in the new
>> xserver.  Try removing the 1400x1050 mode from the modes lines in the
>> screens section of your config.
>>
> I have associated the screen and the output. So why is it added to every
> output then?

The modes in your screen section apply to all outputs.  The ones in
your monitor sections only apply to the specific monitor in question.

Alex