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Old 07-30-03, 10:26 AM   #1
vrtainment
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Join Date: Mar 2003
Location: Berlin, Germany
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Default 4496 and glxGetVideoSyncSGI

Hi,

till now I have been using the following hack in an application to achieve best possible v-syncing
export __GL_VSYNC_TO_BLANK=0
in app I was calling glXGetVideoSyncSGI(&nCounter); before call to glXSwapbuffers. This constellation did a great job in getting smooth motion in full-field motions inside a heavily textured cylinder ...
Now, after installing 4496 the application gets stalled when calling glXGetVideoSync
Any idea how to bypass this? using export __GL_VSYNC_TO_BLANK=1 does not do the job at the same quality which I had before ...



hartwig
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Old 09-01-03, 04:19 PM   #2
SUnterholzner
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Default 4496 and glxGetVideoSyncSGI

Hi!

I just ran into the same problem that my application stalls whenever 'glXGetVideoSyncSGI' is called. Have you already found a solution to this problem.

Stefan
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Old 09-01-03, 04:32 PM   #3
vrtainment
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Default

Hi Stefan,

I found no solution so far. What I did is to remove the call to glxGetVideoSyncSGI and activated export __GL_SYNC_TO_VBLANK=1
This is working reasonable well with the latest driver on the FX 5900 (guess might do on any FX), however for "older" nvidia cards using the latest driver I found no solution, since any motion given the above solution is jerky ... For Ti4800 based or less I reverted to previous version of driver ...



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