On Tue, 2008-01-08 at 23:29 -0800, Rob wrote:
Hi,
My OS is an up-to-date version of Fedora 7 on a Intel based PC.
I use a particular academic/scientific video rendering software VMD
(
http://www.ks.uiuc.edu/Research/vmd/ ).
This software uses GLX/Mesa heavily.
My day-to-day window manager is XFCE. When I use VMD, it immediately
freezes keyboard/mouse on my console as soon as any video rendering
activity occurs. The typical error message in /var/log/messages is:
kernel: [drm:i915_wait_irq] *ERROR* i915_wait_irq: EBUSY --
rec: 147447 emitted: 147473
That would be a bug in either the kernel driver for the 915, or in the
Mesa 3d driver.
Eventually I solved the problem: I disabled XFree86-DRI in the file
/etc/X11/xorg.conf.
If disabling DRI fixes it and you still perceive the software to be
usable, it must not be using GL that heavily...
- ajax