ubuntu-x-swat team mailing list archive

[koshimazaki <kozza2@xxxxx>]

I don't see many people commenting who use the open driver, and no Karmic users. I have an old Radeon 9600 Pro with the open driver. I've experienced the same behaviour described here: huge lag and high cpu usage by xorg during unminimising, maximising, unmaximising and generally resizing windows. Felix Kuehling's patch fixed these problems although I'm not sure if X+Compiz is working as smooth now as it did on Jaunty.
What I haven't yet found an explanation for is that these problems only appeared after moving to Karmic (fresh install) while the no-backfill patch is supposed to have already beed dropped in Jaunty.
Other than the speedup, I can see another effect of applying Felix Kuehling's patch: when unminimising Thunderbird window, the two panes showing folders and message list appear black for a short time showing their contents.
As for memory leaks I haven't yet tested long enough to tell.

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[M76] [ubuntu 9.04] [ubuntu 9.10] slow unminimizing with ati card and desktop effects enabled
https://bugs.launchpad.net/bugs/351186
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