OK, after quite a bit of research the bottom line is that this is a mali quirk.
There are 2 potential ways both are by specification allowed to sync with the
driver - which resulted in a performance issue (covered by this bug) and a
"correctness issue" covered by bug 1573014
The performance issue is now addressed by the quirk added to mir0.22 for all
the devices with mali gpu.
Further work will continue on bug 1573014 as there are other suspicions from
data collected here that the mali driver has other issues.
** Changed in: mir
Milestone: None => 0.22.0
** Also affects: mir/0.22
Importance: Undecided
Status: New
** Changed in: mir/0.22
Milestone: None => 0.22.0
** Changed in: mir/0.22
Status: New => Fix Committed
** Changed in: mir
Status: New => Fix Committed
** Changed in: canonical-devices-system-image
Status: Confirmed => Fix Committed
** Branch linked: lp:mir/0.22
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https://bugs.launchpad.net/bugs/1550371
Title:
Webbrowser slow scroll and artifact rendering on freiza
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