[Bug 43052] Re: OpenGL viewport cut-off with 915gm graphics
gilles at vonet.lu
Thu Sep 7 18:25:24 UTC 2006
I'm also having OpenGL problems with my 915GM graphics (Thinkpad Z60m).
The symptoms are as reported: viewport cut-off in various apps, in
google earth: wrong viewport and messed up graphics.
So I decided to give the compiz repository a try. First I only updated
the i810 driver, logged out, restarted X, logged in again. Unfortunately
acceleration was now broken (as reported by googleearth).
I thought that maybe this driver depended on newer mesa-libs, so I did a full update in adept. Now OpenGL is completely broken. glxgears fails with:
glxgears: intel_ioctl.c:62: intelEmitIrqLocked: Assertion `((*(int *)intel->driHwLock) & ~0x40000000U) == (0x80000000U|intel->hHWContext)' failed.
Google Earth gives the following error message:
do_wait: drmWaitVBlank returned -1, IRQs don't seem to be working correctly.
Try running with LIBGL_THROTTLE_REFRESH and LIBL_SYNC_REFRESH unset.
(and it's *extremely* slow, much slower than with software rendering)
Rebooting doesn't help.
Here's the complete list of updated packages:
OpenGL viewport cut-off with 915gm graphics
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