gnome-display-properties should pick the preferred xrandr mode

Bug #314057 reported by Marius Gedminas
2
Affects Status Importance Assigned to Milestone
gnome-desktop
New
Medium
gnome-desktop (Ubuntu)
Triaged
Low
Ubuntu Desktop Bugs

Bug Description

Binary package hint: gnome-control-center

1. Plug in an external 1280x1024 LCD monitor to my laptop's VGA output
2. Open gnome-display-properties
3. Click on the new (deactivated) screen

What should happen: The resolution dropdown should automatically select 1280x1024.

What actually happens: The resolution dropdown automatically selects 1600x1024.

Extra information:

Here's what 'xrandr' prints:

   1280x1024 75.0 + 75.0 60.0 60.0
   1600x1024 60.2
   1400x1050 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
   640x480 75.0 72.8 72.8 75.0 60.0 59.9
   720x400 70.1

The '+' sign indicates the monitor's preferred mode, which is what gnome-display-properties should prefer.

Revision history for this message
Sebastien Bacher (seb128) wrote :

Thank you for your bug report, the "what actually happens" description is not clear, should it use 1600x1024 or does it do that now?

Changed in gnome-control-center:
assignee: nobody → desktop-bugs
importance: Undecided → Low
Revision history for this message
Marius Gedminas (mgedmin) wrote :

Sorry about that; I've updated the description and deleted the spurious 'should'.

1280x1024 is the correct native mode; I don't know where the 1600x1024 comes from.

description: updated
Revision history for this message
Sebastien Bacher (seb128) wrote :
Changed in gnome-control-center:
status: New → Triaged
Changed in gnome-desktop:
status: Unknown → New
Changed in gnome-desktop:
importance: Unknown → Medium
Revision history for this message
Tormod Volden (tormodvolden) wrote :

Marius, the 1600x1024 must be something the X server makes up. Can you please file a separate bug about that, including your Xorg.0.log and dmesg output ("ubuntu-bug xorg" will do that for you).

Revision history for this message
Marius Gedminas (mgedmin) wrote :

The X server no longer reports that fake 1600x1024 resolution in xrandr info for my monitor; I haven't noticed exactly when it got fixed, but that was one or two Ubuntu releases ago.

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