Bug 16760 - Wrong resolution detected for DELL 2007wfp display on DVI
Summary: Wrong resolution detected for DELL 2007wfp display on DVI
Status: RESOLVED WORKSFORME
Alias: None
Product: xorg
Classification: Unclassified
Component: Server/General (show other bugs)
Version: unspecified
Hardware: All Linux (All)
: high major
Assignee: Xorg Project Team
QA Contact: Xorg Project Team
URL: https://bugs.launchpad.net/ubuntu/+so...
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2008-07-17 10:21 UTC by Bryce Harrington
Modified: 2010-05-06 14:18 UTC (History)
0 users

See Also:
i915 platform:
i915 features:


Attachments
xorg.conf (1.52 KB, text/plain)
2008-07-20 08:00 UTC, Johannes Langlotz
no flags Details

Description Bryce Harrington 2008-07-17 10:21:47 UTC
This is a bug report from a Ubuntu reporter:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/190506

"I have a DELL Latitude D630 notebook with a d/port docking station and a DELL 2007wfp display which is connected to the docking station with a DVI plug. The notebook has a resolution of 1440x900. The external 2007wfp Display has a resolution of 1680x1050. When I start the notebook only the resolution of the notebook panel is detected correctly. But if the notebook is docked into the docking station GDM and GNOME are starting with 1280x1024 instead of 1680x1050. I can change the resolution manually but after the next boot the resolution is 1280x1024 again. (The behaviour of Gutsy is completely different but not really better ;-)

Ubuntu Hardy Alpha4 64bit

xrandr -q
Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 1920 x 1200
VGA disconnected (normal left inverted right x axis y axis)
LVDS connected (normal left inverted right x axis y axis)
   1440x900 60.0 + 50.0
   1280x800 60.0
   1280x768 60.0
   1024x768 60.0
   800x600 60.3
   640x480 59.9
TMDS-1 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 434mm x 270mm
   1680x1050 59.9*+
   1280x1024 75.0 59.9
   1152x864 74.8
   1024x768 75.1 60.0
   800x600 75.0 60.3
   640x480 75.0 60.0
   720x400 70.1
TV disconnected (normal left inverted right x axis y axis)"

We had him attempt hardcoding the config, and specifying the preferred mode, but this didn't change the behavior.

Xorg.0.log:  http://launchpadlibrarian.net/11849138/Xorg.0.log
xorg.conf try #1:  http://launchpadlibrarian.net/11849147/xorg.conf
xorg.conf try #2:  http://launchpadlibrarian.net/13590319/xorg.conf
xorg.conf try #3:  http://launchpadlibrarian.net/13590319/xorg.conf
Comment 1 Daniel Stone 2008-07-17 13:52:13 UTC
On Thu, Jul 17, 2008 at 10:21:48AM -0700, bugzilla-daemon@freedesktop.org wrote:
> TMDS-1 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 434mm
> x 270mm
>    1680x1050 59.9*+

... which is marked as the preferred mode.
Comment 2 Johannes Langlotz 2008-07-20 08:00:40 UTC
Created attachment 17768 [details]
xorg.conf
Comment 3 Johannes Langlotz 2008-10-19 11:59:59 UTC

The xrandr output in Intrepid is different than in Hardy. Now there are more/other supported modes. Now I have a resolution of 1440x900 on both displays when GDM appears which is much nicer.

xrandr -q
Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 1680 x 1950
VGA disconnected (normal left inverted right x axis y axis)
LVDS connected (normal left inverted right x axis y axis)
   1440x900 60.0 + 50.0
   1360x768 59.8
   1152x864 60.0
   1024x768 60.0
   800x600 60.3 56.2
   640x480 59.9
TMDS-1 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 434mm x 270mm
   1680x1050 59.9*+
   1600x1024 60.2
   1400x1050 60.0
   1280x1024 75.0 60.0 60.0
   1440x900 59.9
   1280x960 60.0
   1360x768 59.8
   1152x864 75.0 75.0 75.0 70.0 60.0
   1024x768 75.1 75.0 70.1 60.0
   832x624 74.6
   800x600 72.2 75.0 60.3 56.2
   640x480 75.0 72.8 75.0 60.0 59.9
   720x400 70.1
TV disconnected (normal left inverted right x axis y axis)
Comment 4 Adam Jackson 2010-05-06 14:18:18 UTC
Sounds like it works then.


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