compiz team mailing list archive

[Craig Rae <877438@xxxxxxxxxxxxxxxxxx>]

Just to chip in, this doesn't appear to be confined to the 8xxx series
nvidia cards. I've seen this on G96 (Quadro FX 580), GT216 (Geforce GT
220) and on GF108 (GeForce GT 430). Not high-end cards by any stretch of
the imagination, but all should be more than up to the task.

I've mainly encountered this on twinview setups with a pair of 1920x1200
screens. I can't recall if I've ever seen this on a single-monitor
system as we don't have too many of those here.

290.10 doesn't help in any way on the one system I've tried it on.

This affects 11.04, as well as Ubuntu derivatives (Mint 11 and 12 spring
to mind). I'm not sure about 10.04.

It isn't related to Unity or Gnome 3. I've seen this on both 11.04  and
Mint 11 with Gnome 2, and Mint 12 with MATE. This seems 100%
reproducible with MATE under Mint 12. Running 'compiz --replace' causes
the problem every time. While that's not Ubuntu's problem, that might be
a good place to start looking for clues.

For now, the workaround is definitely to avoid running compiz. This
means losing a bunch of window management functionality and the general
feeling of smoothness that compiz usually provides, but that's better
than crippling performance.

-- 
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https://bugs.launchpad.net/bugs/877438

Title:
  Unity/compiz has sluggish performance on dual-head with nvidia driver

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