Has anybody else noticed a huge drop in desktop responsiveness under 12.1RC1
as opposed to Beta1? When I finally managed to install 12.1 Beta 1 (had to use
text mode to install due to an X11 segfault during the second phase), the system
was quick and responsive; incredibly responsive in fact - I was impressed. Now in
RC1, using the KDE desktop feels like wading through sand. I'm not sure what's
causing it, but the graphical effects are extremely choppy (Radeon HD 5670 in my
test machine), with what can only be described as a "low framerate" during actions
such as maximising and minimising windows.
Interestingly, I had the same experience with 11.4 - it was very fast right up until
the release candidate stage and then something changed which slowed everything
right down. The machine I work on every day runs 11.4 (with an Nvidia Geforce
GT440) and is manageable, but KWin eventually (after perhaps a week or more)
automatically disables desktop effects as they become too slow to use.
I'd be content to blame the graphics drivers, but this has happened with cards by
both Nvidia and AMD/ATI, with and without proprietary drivers. Can anybody
explain what might have happened? Surely there shouldn't be such a radical
difference in performance between a Beta and a Release Candidate?
Malvern.
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