Thank you kdub!
You have just also explained the cause of bug 1649662 :)
** Summary changed:
- [regression] Software clients of nested servers are all black in Mir 0.25.0
and later
+ [regression] Software clients of nested servers larger with size >=480x480
are all black in Mir 0.25.0 and
Its even a bit more narrow than that, software clients of android work
(its just ShmBuffer-backed software clients that would be affected).
Furthermore, the nested compositor had to select GL rendering instead of
pasthrough (which is probably common in the wild), and the surface had
to be larger
** Also affects: mir (Ubuntu)
Importance: Undecided
Status: New
** Changed in: mir (Ubuntu)
Status: New => Triaged
** Changed in: mir (Ubuntu)
Importance: Undecided => Critical
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** Branch linked: lp:~kdub/mir/fix-1663062
** Branch linked: lp:~kdub/mir/fix-1663062-0.26.1
** Changed in: mir
Status: Triaged => In Progress
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It appears this bug when unnoticed in the 0.25.0 and 0.26.0 releases
because our major toolkits all use GL and not software surfaces. So
almost all our apps won't ever hit the bug.
Xmir also uses hardware surfaces on desktop so won't hit it. We would
have noticed the bug in Xmir on Android where
Fix committed to lp:mir/0.26 at revision 4024, scheduled for release in
Mir 0.26.1
** Changed in: mir
Assignee: (unassigned) => Kevin DuBois (kdub)
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** Branch linked: lp:~ci-train-bot/mir/mir-ubuntu-zesty-2435
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https://bugs.launchpad.net/bugs/1663062
Title:
[regression] Software clients of nested servers are all black in Mir
** Branch linked: lp:mir/0.26
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https://bugs.launchpad.net/bugs/1663062
Title:
[regression] Software clients of nested servers are all black in Mir
0.25.0 and later
To manage
** Changed in: mir/0.26
Status: Triaged => Fix Committed
** Changed in: mir/0.26
Assignee: (unassigned) => Kevin DuBois (kdub)
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https://bugs.launchpad.net/bugs/1663062
** Tags added: mesa
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https://bugs.launchpad.net/bugs/1663062
Title:
[regression] Software clients of nested servers are all black in Mir
0.25.0 and later
To manage notifications
** Description changed:
GPU apps seem to work.
CPU apps all get black screen.
+
+ To repro using mir-on-x:
+
+ 1- In a terminal, run :
+ mir_demo_server -f /tmp/mysock
+
+ 2- In another terminal, run :
+ mir_demo_server --host-socket /tmp/mysock
+
+ 3- In another terminal, run :
+
** Summary changed:
- [regression] Software clients of nested servers are all black
+ [regression] Software clients of nested servers are all black in Mir 0.25.0
and later
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