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



On Friday 27 June 2008 17:16:48 you wrote:
> Torquil Macdonald Sørensen wrote:
> > Package: xserver-xorg-video-radeon
> > Version: 1:6.8.192-1
> > Severity: normal
> >
> > Up until the last few days, when I started my laptop (1400x1050) with an
> > external screen (LCD 1280x1024), X would automatically lower the
> > resolution so that it was appropriate for the external screen, instead of
> > the 1400x1050 it normally uses on my laptop (IBM T24 with ATI Radeon
> > Mobility 9600). It doesn't do that any more.
> >
> > Now I get a cropped 1400x1050 on the external LCD instead. E.g. I can
> > only see the upper half of the KDE panel on the external screen. The
> > lowest part of the desktop is not shown.
> >
> > When I try to lower the resolution to 1280x1024 using kcontrol, the
> > external screen becomes black and a 1280x1024 image is shown only on the
> > laptop screen.
> >
> > Best regards,
> > Torquil Sørensen
>
> What did you upgrade when the behavior changed? ati 6.8.191 to .192 ?
> 6.8.0 to .192 ? Did you change xserver-xorg-core?
>
> Can you send the output of xrandr when both monitors are plugged?
>
> Also please try ati 6.9.0 (it has been uploaded to unstable today).
>
> Brice

I tried xserver-xorg-video-radeon 6.9.0 but it did not fix the problem. But 
downgrading xserver-xorg-core to version 2:1.4.1~git20080517-2 fixed it! I 
think that was the version I had before, since I use unstable. I had the 
newest version 2:1.4.2-1 when it did not work.

Here is the output from xrandr when it did not work correctly (with 6.9.0 and 
1.4.2):

****************************
Screen 0: minimum 320 x 200, current 1400 x 1050, maximum 1600 x 1200
VGA-0 connected 1400x1050+0+0 (normal left inverted right x axis y axis) 338mm 
x 270mm
   1400x1050      60.0*+
   1280x1024      60.0 +   75.0     59.9     60.0
   1600x1024      60.0
   1440x900       60.2
   1280x960       60.0
   1280x800       60.0
   1152x864       75.0
   1280x768       60.0
   1024x768       75.1     70.1     60.0
   832x624        74.6
   800x600        72.2     75.0     60.3     56.2
   640x480        75.0     72.8     72.8     75.0     66.7     60.0     59.9
   720x400        70.1
DVI-0 disconnected (normal left inverted right x axis y axis)
LVDS connected 1400x1050+0+0 (normal left inverted right x axis y axis) 0mm x 
0mm
   1400x1050      60.2*+
   1280x1024      59.9
   1280x960       59.9
   1280x800       60.0
   1280x768       60.0
   1024x768       60.0     59.9
   800x600        60.3     59.9
   700x525        59.8
   640x480        59.9     59.4
S-video disconnected (normal left inverted right x axis y axis)
****************************

And here is the output from xranrd now that I have downgraded 
xserver-xorg-core and it works fine (with 6.9.0 and 1.4.1):

***************************
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 1400 x 1200
VGA-0 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 338mm 
x            270mm
   1280x1024      60.0*+   75.0     59.9
   1152x864       75.0
   1024x768       75.1     70.1     60.0
   832x624        74.6
   800x600        72.2     75.0     60.3     56.2
   640x480        75.0     72.8     66.7     60.0
   720x400        70.1
DVI-0 disconnected (normal left inverted right x axis y axis)
LVDS connected 1280x1024+0+0 (normal left inverted right x axis y axis) 0mm x 
0m           m
   1400x1050      60.2 +
   1280x1024      59.9*
   1280x960       59.9
   1280x800       60.0
   1280x768       60.0
   1024x768       60.0     59.9
   800x600        60.3     59.9
   700x525        59.8
   640x480        59.9     59.4
S-video disconnected (normal left inverted right x axis y axis)
*******************************

Thanks,
Torquil Sørensen



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