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grant123
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PostPosted: Sat Nov 02, 2013 7:36 pm    Post subject: intel_drv.so crash Reply with quote

I'm having a tough time with an intermittent xorg crash that references intel_drv.so. I don't have the entire message from Xorg.0.log but I will save it next time. I've tried xf86-video-intel-2.21.15, 2.99.905, and 9999 but they all crash eventually. What else should I try? It might not happen if I use uxa instead of sna but then videos tear.
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grant123
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PostPosted: Tue Nov 05, 2013 12:29 pm    Post subject: Reply with quote

Here's the crash. What can I do?

[ 12021.732] (EE) Backtrace:
[ 12021.741] (EE) 0: /usr/bin/X (xorg_backtrace+0x36) [0x589746]
[ 12021.741] (EE) 1: /usr/bin/X (0x400000+0x18d3d9) [0x58d3d9]
[ 12021.741] (EE) 2: /lib64/libpthread.so.0 (0x7f5c707c5000+0x10460) [0x7f5c707d5460]
[ 12021.741] (EE) 3: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f5c6e3ca000+0x2fe79) [0x7f5c6e3f9e79]
[ 12021.741] (EE) 4: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f5c6e3ca000+0x3037f) [0x7f5c6e3fa37f]
[ 12021.741] (EE) 5: /usr/bin/X (0x400000+0x3713b) [0x43713b]
[ 12021.741] (EE) 6: /usr/bin/X (0x400000+0x3b176) [0x43b176]
[ 12021.741] (EE) 7: /usr/bin/X (0x400000+0x29c4a) [0x429c4a]
[ 12021.741] (EE) 8: /lib64/libc.so.6 (__libc_start_main+0xfd) [0x7f5c6f44a4bd]
[ 12021.741] (EE) 9: /usr/bin/X (0x400000+0x29f91) [0x429f91]
[ 12021.741] (EE)
[ 12021.741] (EE) Segmentation fault at address 0x0
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epsilon72
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PostPosted: Tue Nov 05, 2013 2:41 pm    Post subject: Reply with quote

Have you tried using uxa acceleration instead of sna?
See here for howto: https://wiki.archlinux.org/index.php/Intel_Graphics#Choose_acceleration_method
You'll also have to enable the 'uxa' use flag for x11-drivers/xf86-video-intel.
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grant123
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PostPosted: Tue Nov 05, 2013 7:54 pm    Post subject: Reply with quote

I think uxa does prevent the crash but then my screen tears when I'm watching a video.
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epsilon72
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PostPosted: Thu Nov 07, 2013 12:03 am    Post subject: Reply with quote

If you're not using kde or gnome3 you can try using compton

This will get rid of screen tearing on intel by using opengl compositing with vsync. Just emerge 0.1_beta1 and run this command:
Code:
compton --backend glx --paint-on-overlay --vsync opengl-swc


If you are using gnome3 or kde try enabling vsync.
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grant123
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PostPosted: Thu Nov 07, 2013 7:32 am    Post subject: Reply with quote

I'm on xfce4 and compton sounds pretty slick. Does it hurt performance much? I'll give that a try if I can't get the segfault fixed soon.
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