Is this a dual monitor reset bug?
- by Tentresh
My two displays are:
Intel GMA x4500 Laptop (1280x800 native resolution of the built-in display)
External display (1920x1080)
A few minutes after I login to my dual monitor setup, it gets reset to mirror screens. If I restore the settings via the displays application, everything is fine.
On each reset, the following messages are written into /var/log/Xorg.0.log:
[ 60.852] (II) PM Event received: Capability Changed
[ 60.852] I830PMEvent: Capability change
[ 132.920] (II) intel(0): EDID vendor "SEC", prod id 12869
[ 132.920] (II) intel(0): Printing DDC gathered Modelines:
[ 132.920] (II) intel(0): Modeline "1280x800"x0.0 68.94 1280 1296 1344 1408 800 801 804 816 -hsync -vsync (49.0 kHz)
[ 134.228] (II) intel(0): Allocated new frame buffer 1280x800 stride 5120, tiled
Whereas right on startup or manual resolution reset, /var/log/Xorg.0.log reports the expected frame buffer allocation:
[ 1562.382] (II) intel(0): EDID vendor "SEC", prod id 12869
[ 1562.382] (II) intel(0): Printing DDC gathered Modelines:
[ 1562.382] (II) intel(0): Modeline "1280x800"x0.0 68.94 1280 1296 1344 1408 800 801 804 816 -hsync -vsync (49.0 kHz)
[ 1576.740] (II) intel(0): Allocated new frame buffer 3200x1080 stride 12800, tiled
Is Ubuntu 12.04 not compatible with my video card?
Can this be solved within Ubuntu?
I like its interface, but manually fiddling with resolution on every login is not bearable.
