Maximized windows don't fill the whole screen

Bug #147363 reported by Albert Gasset on 2007-09-30
Affects Status Importance Assigned to Milestone
xserver-xorg-video-intel (Ubuntu)

Bug Description

When using an external monitor (resolution 1280x1024) connected to my laptop, maximized windows don't fill the whole screen, only the part of the screen that matches the resolution of the internal monitor (1280x800). I have a similar problem when using the zoom function of the visual effects, only the top 800 lines of the screen are zoomed.

I can solve this by running every time I log in:
xrandr --output LVDS --below VGA
xrandr --output LVDS --off

I have an Intel 945 video card.
Output of xrandr:
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 2048 x 2048
VGA connected 1280x1024+0+0 (normal left inverted right) 338mm x 270mm
   1280x1024 60.0*+ 75.0 59.9
   1024x768 75.1 70.1 60.0
   800x600 75.0 60.3
   640x480 75.0 60.0
   720x400 70.1
LVDS connected 1280x800+0+0 (normal left inverted right) 331mm x 207mm
   1280x800 60.2*+ 60.0
   1280x768 60.0
   1024x768 60.0
   800x600 60.3
   640x480 59.9
TV disconnected (normal left inverted right)

Albert Gasset (albertgasset) wrote :
Albert Gasset (albertgasset) wrote :
Albert Gasset (albertgasset) wrote :

I forgot to say I'm running Ubuntu Gutsy beta.

Albert Gasset (albertgasset) wrote :

Playing a little with the visual effects settings, I've founde that this only happens when visual effects are enabled. With visual effects enabled, unchecking "General Options -> Display Settings -> Detect Outputs" in "Advanced Desktop Effects Settings" solves the problem.

This two bugs refer to the same problem:

unggnu (unggnu) wrote :

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug #131646 so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug.
Additionally any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.
I guess your last comment would be important.

david_ri (david-d-cox) wrote :

I believe this is related - I'm running a Dell D640 laptop with Radeon Mobility video, which does not support the new appearance features. If that's true, then my newbie understanding of the video system tells me that it might be defaulting to metacity?? I'm not sure. But, at any rate, the screen geometry issue persists here. I have full use of the entire 1440x900 area of my emachines widescreen monitor, however the panels, the "fullscreen" screensaver, etc. all confine themselves to the upper left quadrant of the screen as shown.

david_ri (david-d-cox) wrote :

Here is another picture showing that the screensaver preview believes it is in full screen mode.

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