GNOME Bugzilla – Bug 673526
cluttershare and cluttersink render choppy video with fglrx driver
Last modified: 2012-04-10 14:52:15 UTC
I've reported bug here https://bugzilla.gnome.org/show_bug.cgi?id=673383 believing that it is a bug that has to do something with clutter and clutter-gst. But, I've discovered same result with cluttershare example that, I believe, is same way how cluttersink functions. I've tested this on three ATI GPU machines, and discovered that on first two I had same result and on the last everything worked fine until I installed fglrx drivers - so I asume that it has to do something with fglrx and gst-gl plugins incompatibility bug. glimagesink works fine with that setup. Image displayed with cluttershare or cluttersink is somehow skipping frames, like hardware is week, but it is not. I've used latest stable releases of everything. If you need any more information, please ask. I can even provide you with hardware to solve this issue.
In case anyone is interested, I've found a workaroud that gives better performance: 1. add this to /etc/enviroment: export CLUTTER_VBLANK=none 2. in amdcccle disable vsync 3. reboot
(In reply to comment #0) > I've reported bug here https://bugzilla.gnome.org/show_bug.cgi?id=673383 Let's solve bug #673383 first