Comment 29 for bug 177492

sibidiba (sibidiba) wrote :

Can confirm bug and workaround with further details.

On current Hardy with chipset and video card:

00:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub (rev 0c)
00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 0c)

With xorg (1:7.3+10ubuntu4) and intel driver (2:

2D acceleration, especially text scrolling is fast, even with compiz enabled.

Xv video playback works fine, but when compiz enabled it is slow and drops a lot of frames.

When having a virtual display (even below or equal to 2048x2048) with multiple display devices (regardless of clone or extended mode), a system hang doesn't occur anymore when running 3D apps.