Virtual desktop size setting disables HW acceleration
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| xserver-xorg-video-intel (Ubuntu) |
New
|
Undecided
|
Unassigned | ||
Bug Description
Binary package hint: xserver-
I run Ubuntu 9/04 on a Macbook with the following graphics card:
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)
By default everything works fine. Then I plug in an external monitor with resolution 1920x1200. I start the resolution config app and set external monitor's resolution to 1920x1200. I get a popup saying that I need to enable virtual desktop size to xorg.conf. I do that and restart X.
When I log in, xserver has changed to Mesa software rendering. If I go and remove the virtual size setting from xorg.conf, I get DRI HW acceleration, but the external monitor's resolution goes to 1024x768.
So I can either get native resolution OR hw accelerated OpenGl. But not both.
