The resolution is stuck at 1024x768

Bug #777586 reported by piviul on 2011-05-05
This bug affects 2 people
Affects Status Importance Assigned to Milestone
gnome-control-center (Ubuntu)

Bug Description

Binary package hint: gnome-control-center

After upgrading from ubuntu 10.10 to 11.04 I can't change a monitor resolution greater than 1024x768 even if my video card and monitor support a higher resolution. Executing xrandr --output VGA1 1280x1024 change the resolution correctly but unity launcher doesn't know that the resolution is changed so is not a good workaround. ...perhaps the bug is only on gnome-display settings?

$ lsb_release -rd
Description: Ubuntu 11.04
Release: 11.04

I have already reported this bug in but I don't know how to add ubuntu-bug generated report to an existent one. So I close the first and open a new one.

Thank you very much


ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: xorg 1:7.6+4ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic
Uname: Linux 2.6.38-8-generic i686
Architecture: i386
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
 status: connected
 enabled: enabled
 dpms: On
 modes: 1280x800
 status: connected
 enabled: enabled
 dpms: On
 modes: 1280x1024 1280x1024 1024x768 1024x768 1024x768 832x624 800x600 800x600 800x600 800x600 640x480 640x480 640x480 640x480 720x400
Date: Thu May 5 06:49:18 2011
DistUpgraded: Log time: 2011-05-03 17:52:14.352589
DistroCodename: natty
DistroVariant: ubuntu
 virtualbox-ose, 4.0.4, 2.6.38-8-generic, i686: installed
 virtualbox-ose, 4.0.4, 2.6.35-28-generic, i686: installed
 Intel Corporation N10 Family Integrated Graphics Controller [8086:a001] (rev 02) (prog-if 00 [VGA controller])
   Subsystem: Intel Corporation Device [8086:574d]
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=d1ac4556-749d-403f-a906-b1124ba76dc2 ro quiet splash vt.handoff=7
Renderer: Unknown
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to natty on 2011-05-03 (1 days ago) 09/13/2010
dmi.bios.vendor: Intel Corp.
dmi.bios.version: MWPNT10N.86A.0069.2010.0913.1432
dmi.board.asset.tag: Base Board Asset Tag D525MW
dmi.board.vendor: Intel Corporation
dmi.board.version: AAE93082-301
dmi.chassis.type: 2
dmi.modalias: dmi:bvnIntelCorp.:bvrMWPNT10N.86A.0069.2010.0913.1432:bd09/13/2010:svn:pn:pvr:rvnIntelCorporation:rnD525MW:rvrAAE93082-301:cvn:ct2:cvr:
version.compiz: compiz 1:0.9.4+bzr20110415-0ubuntu2
version.libdrm2: libdrm2 2.4.23-1ubuntu6
version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7

piviul (piviul) wrote :
dr.spock (dr.spock) wrote :

Same behavior with an Intel D525MW motherboard.

piviul (piviul) wrote :

My motherboard is an Intel too (D510MO having chipset Intel NM10)


It would be useful to see a screenshot from the Monitor applet with the list of available resolutions open - I want to understand exactly what you're seeing the the settings.

Ubuntu Bug Squad volunteer triager

Changed in gnome-control-center (Ubuntu):
status: New → Incomplete
piviul (piviul) wrote :

This is the screen image you ask me.

piviul (piviul) wrote :

This is the screenshot of avaliable resolution after running "xrandr --output VGA1 --mode 1280x1024"

It's not strange that the current resolution set using xrandr is not from the available resolutions?

Have a great day


Sebastien Bacher (seb128) wrote :

could you get a "xrandr" log?

piviul (piviul) wrote :

Do You mean the output of xrandr --verbose --output VGA1 --mode 1280x1024?


There is one attached (Xrandr.txt) unless you mean the output from the command piviul mentioned?

Ubuntu Bug Squad volunteer triager

Sebastien Bacher (seb128) wrote :

ups, the Xrand log was in the initial bug files set, sorry about that

Changed in gnome-control-center (Ubuntu):
status: Incomplete → New
importance: Undecided → Low
piviul (piviul) wrote :

I have tried the Oneiric beta and the problem persists.

Please have you found a way how to solve the bug?


Sebastien Bacher (seb128) wrote :

Could somebody create "gsd-debug-randr" file in you user directory, restart the session, change the screen settings and copy the "gsd-debug-randr.log" which got created in the user directory to the bug?

piviul (piviul) wrote :

I attach gsd-debug-randr.log. If you need something more please tell me.

Have agreat day


Bryce Harrington (bryce) wrote :

You've got the laptop and external monitor set to mirrored. Mirrored means "Make both monitors look the same" so X has to select a resolution that both monitors have in common. LVDS1 supports 1280x800, 1024x768, 800x600, and 640x480. VGA1 supports 1280x1024, 1024x768, 800x600, 640x480, and 720x400. You can see only three resolutions are in common and those are the three you are given as options.

Uncheck the 'mirrored' checkbox and arrange the monitors side by side or one over the other, then you can use both at their maximum resolutions. Or else turn your laptop monitor off when you're connected to the external display.

Or, if you want something more exotic than gnome-display-properties allows, you can do whatever you want using the xrandr command line tool. For instance, you can set up viewports, scale or pan, and so on. However these more advanced options are generally not what average users are looking for, thus aren't supported in the GUI config tool's design.

Changed in gnome-control-center (Ubuntu):
status: New → Invalid
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