Displayconfig does not detect the screen resolution

Bug #150467 reported by François Tissandier
8
Affects Status Importance Assigned to Milestone
displayconfig-gtk (Ubuntu)
Won't Fix
Undecided
Unassigned

Bug Description

Binary package hint: displayconfig-gtk

Dell M1330, Nvidia 8400GS, LED LCD panel

displayconfig-GTK does not offer the native resolution of the screen (1280x800), but instead very generic resolutions (640x480,800x600).
I have to manually edit the Xorg.conf file to set the right resolution.

Revision history for this message
Lionel Dricot (ploum-deactivatedaccount) wrote :

I confirm this bug. Sometimes, displayconfig want to use the VESA driver only and display only VESA available mode. Another possible cause is that sometimes displayconfig force refresh rates that are not compatible with the native screen resolution. You have to remove it manually from the xorg.conf file to get your native resolution.

To solve this bug, displayconfig should be more intelligent when dealing with drivers and :

1) only display the drivers supported by the current hardware
2) Do not impose refresh rates or anything. In fact, the refresh rate should not be displayed at all if the screen is not CRT.
3) When an user choose a given driver, actually use it for real ! (it works 1 time in 10 when it works)
4) Keep the xorg.conf file at the minimum. X.org is really intelligent those days.
5) Try to do whatever it can do to use the native resolution of the screen is the screen is LCD.

Well, in fact, there tons of bug to report about displayconfig but the principle of displayconfig in itself is broken : if an user cares about the driver he want to use, there's already jockey. Displayconfig should only be used to set and second monitor or something fancy like that. No user should even know what a driver is and any LCD screen should automatically be set at its native resolution.

Revision history for this message
Matt Zimmerman (mdz) wrote :

I had the same problem, with displayconfig-gtk running under bullet-proof-x and trying to switch from vesa to nv. Only 640x480 and 800x600 were offered.

Revision history for this message
Bryce Harrington (bryce) wrote : displayconfig-gtk is deprecated

Thank you for reporting this bug and for your efforts to make
Ubuntu better. As Xorg has improved this past year, an unfortunate side
effect of these improvements is that it has rendered several design
assumptions in displayconfig-gtk obsolete. So, starting with Hardy we
are no longer putting displayconfig-gtk forth as a primary configuration
tool, and are putting our development focus into the Screen Resolution
applet. As a result, we do not plan to fix this bug and thus are closing
it.

For more background on this change, please see this page:
https://wiki.ubuntu.com/X/DisplayConfigGtk

Changed in displayconfig-gtk:
status: New → Won't Fix
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