No DRI with modesettings driver

[Eric Anholt]

On Thu, 2007-01-04 at 13:06 +0100, Frédéric Riss wrote:
> Le jeudi 04 janvier 2007 à 10:53 +0000, Ross Burton a écrit :
> > I just noticed that I don't have accelerated GL any more with the
> > modesetting i810 driver.
> > 
> > $ glxinfo
> > name of display: :0.0
> > display: :0  screen: 0
> > direct rendering: No
> > 
> > I'm using i810 from modesetting git, libdrm 2.3.0, and drm.ko/i915.ko
> > from drm git.
> 
> Things are even worse when using the modesetting branch with a pure 7.1
> server. 2.6.19.1 + Xorg 7.1 (Ubuntu Edgy) + modesetting crashes the
> server with the following backtrace :
> 
> Backtrace:
> 0: /usr/X11R6/bin/X(xf86SigHandler+0x81) [0x80c3971]
> 1: [0xb7f8d420]
> 2: /usr/lib/dri/i915_dri.so(intelFlushBatch+0x110) [0xa781ce20]
> 3: /usr/lib/dri/i915_dri.so [0xa780f1f0]
> 4: /usr/lib/dri/i915_dri.so [0xa781b026]
> 5: /usr/lib/dri/i915_dri.so(i915InitState+0x4d) [0xa780a1fd]
> 6: /usr/lib/dri/i915_dri.so(i915CreateContext+0x243) [0xa7804623]
> 7: /usr/lib/dri/i915_dri.so [0xa781fb00]
> 8: /usr/lib/dri/i915_dri.so [0xa7800b23]
> 9: /usr/lib/xorg/modules/extensions/libglx.so [0xb7c73e2e]
> 10: /usr/lib/xorg/modules/extensions/libglx.so(DoCreateContext+0x10e)
> [0xb7c4e47e]
> 11: /usr/lib/xorg/modules/extensions/libglx.so(__glXCreateContext+0x44)
> [0xb7c4ec74]
> 12: /usr/lib/xorg/modules/extensions/libglx.so [0xb7c5130a]
> 13: /usr/X11R6/bin/X(Dispatch+0x18f) [0x808693f]
> 14: /usr/X11R6/bin/X(main+0x485) [0x806e715]
> 15: /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xdc) [0xb7d918cc]
> 16: /usr/X11R6/bin/X(FontFileCompleteXLFD+0xa1) [0x806da51]

This is just a crash in the DRI driver, it looks like.  The best thing
to do would be to try to reproduce it in a DRI context rather than
AIGLX.

-- 
Eric Anholt                             anholt at FreeBSD.org
eric at anholt.net                         eric.anholt at intel.com
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