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Message #06685
[Bug 1195811] Re: nouveau: Abnormally high FPS (no vsync) on natively mir testing demo-clients.
Confirmed the following two kernel patches together fix the problem perfectly for Mir:
http://lists.freedesktop.org/archives/dri-devel/2013-August/043406.html
http://lists.freedesktop.org/archives/dri-devel/2013-August/043407.html
Now Mir under nouveau is always 60Hz with no tearing.
Unfortunately the patches make legacy X/Compiz much worse... only about
30Hz.
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https://bugs.launchpad.net/bugs/1195811
Title:
nouveau: Abnormally high FPS (no vsync) on natively mir testing demo-
clients.
Status in Mir:
Triaged
Status in “linux” package in Ubuntu:
In Progress
Bug description:
I installed Ubuntu 13.10 (yesterday) in order to test Xmir and Mir natively (examples-clients). Xmirg worked flawlessly. The only "problem" was the duplicate mouse cursor(s).
But I noticed an abnormally high FPS in some clients demo when I tested Mir natively per these instructions
http://unity.ubuntu.com/mir/using_mir_on_pc.html
I recorded the test case using external camera. Apologies for the quality but you will see the values.
http://www.youtube.com/watch?v=zil-lRNlaks
I attached an apport.log just for more info if are needed.
I'm not a technical guy and I filled this report prompted by @duflu in IRC #ubuntu-mir
You can read the mini conversation here.
http://irclogs.ubuntu.com/2013/06/28/%23ubuntu-mir.html
This test had the same results either if X only was running in VT7 (Video) or Xmir.
I hope I helped... in something.
Regards
NikTh
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