I am currently running the latest Quantal, and although I hadn't thought
of this bug in about a year I suppose it is still happening, just much
less noticeably because the rendering speed in general has improved so
much. It's also happening consistently on every suspend/resume I
remember in the last couple of weeks (and likely before that).
It's only really noticeable in two places:
- The unity dash and hud. On a fresh boot both are very snappy. After a
suspend/resume, both feel mildly laggy. The related processes aren't pegging
the CPU, so I assume it must be the graphics that are the bottleneck.
- Waving windows around. Moving windows normally feels fine both before and
after a suspend/resume. However, if you really wave the mouse around with a
window attached then it keeps up fine on a fresh boot but starts to lag after a
suspend/resume.
** Changed in: linux (Ubuntu)
Status: Incomplete => New
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https://bugs.launchpad.net/bugs/584714
Title:
Radeon 2600XT poor performance after suspend-to-ram
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