Ubuntu
xserver-xorg-video-ati package

  1. Bug #296617
  2. Comment #15

Comment 15 for bug 296617

Revision history for this message
Tormod Volden (tormodvolden) wrote :

The driver allocates memory for a big combined dual screen (it detects both a VGA and an LCD at 1600x1200):
(II) RADEON(0): Memory manager initialized to (0,0) (3520,4766)
(II) RADEON(0): Reserved area from (0,1600) to (3520,1602)
(II) RADEON(0): Largest offscreen area available: 3520 x 3164

and therefore have no VRAM left for DRI. If you are not using all that screen space, you can configure xorg.conf with a "Virtual" size, see https://wiki.ubuntu.com/X/Config/Resolution