Comment 28 for bug 889459

I discovered that if I plug an external display, the two displays (the original tablet one's and the external one) work perfectly, then if I disconnect the external display, the original one still works great. If I reboot with only one display : same problem.

Here are the results of the xrandr command

Screen 0: minimum 320 x 200, current 800 x 600, maximum 4096 x 4096
LVDS1 connected 800x600+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x600 60.0 +
   800x600 60.3* 56.2
   640x480 59.9
VGA1 connected 800x600+0+0 (normal left inverted right x axis y axis) 338mm x 270mm
   1280x1024 60.0 + 75.0
   1280x960 60.0
   1152x864 75.0
   1024x768 75.1 70.1 60.0
   832x624 74.6
   800x600 72.2 75.0 60.3* 56.2
   640x480 72.8 75.0 66.7 60.0
   720x400 70.1