kernel-packages team mailing list archive

[Doug McMahon <1195811@xxxxxxxxxxxxxxxxxx>]

While the 2 commits do eliminate tearing here with  nv50 that was  brought back when using xmir/u-s-c,  considering the current state of bug fixing it would be good not to create yet another bug in compiz 
For 13.10 not using u-s-c is probably the best choice for users concerned about tearing & who have none with the current X, mesa, compiz & unity

Also to note that the commits did a decent job of eliminating tearing in gnomeshell/clutter, 100% gone with xmir/u-s-c, not quite 100% with just the commits (no xmir, u-s-c
Though Gs users can eliminate tearing completely  with a simple env for clutter

If those commits are going to be applied it would be useful to provide a
testing ppa to see how they do with other nvidia hardware & if they
create any further issues other than noted previously  with compiz.

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https://bugs.launchpad.net/bugs/1195811

Title:
  nouveau: Abnormally high FPS and tearing (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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