Ubuntu
compiz package

  1. Bug #73473
  2. Comment #19

Comment 19 for bug 73473

Revision history for this message
Nicolò Chieffo (yelo3) wrote : Re: [Bug 73473] Re: Very hi CPU usage when refreshing a window. radeon driver

Unfortunately it does not help. It is still so slow.
Sebastian: I thought it was enabled by default because of the spec
composite-by-default. Sorry.
Upstream answered for a small period but now seems not interested
anymore: they are sure that the poor performance is caused by the lack
of RENDER ACCEL for this driver.

"The lack of RENDER acceleration is quite clearly the bottleneck for scrolling
performance with most apps here. Again though, for EXA you'll definitely need
the xserver exa-damagetrack branch, as otherwise EXA itself is incapable of
accelerating a lot of things properly."

We could try to open a new upstream bug, more specific than the one I opened.