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Old 11-30-06, 05:17 PM   #1
joshuanapoli
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Exclamation Trouble with SGI_video_sync with GeForce 7900 GTX

I sometimes get a segfault in the OpenGL driver when calling glXGetVideoSyncSGI and when using a GeForce 7900 GTX. The problem occurs with both 8776 and 9629 drivers. The problem does not occur when using a GeForce 6800 GT card.

Any ideas?
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Old 11-30-06, 05:23 PM   #2
netllama
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Default Re: Trouble with SGI_video_sync with GeForce 7900 GTX

Which application(s) are required to reproduce this, and how reliably does it reproduce?

Does it also reproduce with 1.0-9742?

Thanks,
Lonni
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Old 12-01-06, 11:23 AM   #3
joshuanapoli
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Default Re: Trouble with SGI_video_sync with GeForce 7900 GTX

It is my own application. With the 9742, I don't see a segmentation fault because the Linux system completely hangs instead.

Failure rate is about 50%. On a given X session, SGI_video_sync will always fail or always succeed.
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Old 12-01-06, 11:31 AM   #4
netllama
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Default Re: Trouble with SGI_video_sync with GeForce 7900 GTX

I could investigate further if you provide the application required to reproduce this along with reproduction steps.

Thanks,
Lonni
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Old 12-06-06, 04:01 PM   #5
joshuanapoli
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Default Re: Trouble with SGI_video_sync with GeForce 7900 GTX

I tried an GeForce 8800. SGI_video_sync does not work, but at least it doesn't crash the computer. I'm attaching a test that demonstrates the issue.

Thanks,
Joshua Napoli
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File Type: bz2 VideoSync.tar.bz2 (129.0 KB, 140 views)
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Old 12-06-06, 05:19 PM   #6
netllama
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Default Re: Trouble with SGI_video_sync with GeForce 7900 GTX

I'm able to reproduce the app hang with a G80, and opened bug 273064. However, I'm not seeing any problems or instability with a GeForce 7900GTX.

Thanks,
Lonni
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Old 12-07-06, 08:24 AM   #7
joshuanapoli
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Default Re: Trouble with SGI_video_sync with GeForce 7900 GTX

Thank you, Lonni. How can I track progress on the issue?

-Josh
jnapoli@actuality-systems.com
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Old 12-07-06, 10:15 AM   #8
netllama
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Default Re: Trouble with SGI_video_sync with GeForce 7900 GTX

By requesting a status update either in this thread or by emailing linux-bugs@nvidia.com
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