This bug has been reported on the Ubuntu ISO testing tracker.
A list of all reports related to this bug can be found here:
https://iso.qa.ubuntu.com/qatracker/reports/bugs/2017097
** Tags added: iso-testing
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Desktop Bugs, w
How do you determine shell fps?
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https://bugs.launchpad.net/bugs/2017097
Title:
[raspi] GNOME Shell runs at 30 FPS unless the CPU is being stressed
To manage notifica
To get FPS in the system journal set environment:
CLUTTER_SHOW_FPS=1
which will give you accurate FPS but not accurate render times because
OpenGL is asynchronous. To get accurate render times too you will need
to slow it down a little by adding:
COGL_DEBUG=sync-frame
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Think I found it. The new version of triple buffering in mutter 44.0 is
too aggressive at scaling back to double buffering. So that's why 22.04
and 22.10 felt faster on Pi than 23.04 does right now.
The workaround is to add this to /etc/environment:
MUTTER_DEBUG_TRIPLE_BUFFERING=always
** Tag
See also bug 2017137
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https://bugs.launchpad.net/bugs/2017097
Title:
[raspi] GNOME Shell runs at 30 FPS unless the CPU is being stressed
To manage notifications about
** Description changed:
+ [ Impact ]
+
On a Raspberry Pi 400, GNOME Shell runs at 30 FPS unless the CPU is
being stressed in which case it becomes a smooth 60 FPS. Seems like a
frequency scaling issue.
+
+ [ Workaround ]
+
+ Add this to /etc/environment:
+
+ MUTTER_DEBUG_TRIPLE_BUFFERI
** Changed in: mutter (Ubuntu)
Status: Triaged => Fix Committed
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https://bugs.launchpad.net/bugs/2017097
Title:
[raspi] GNOME Shell runs at 30 FPS unless the CP
Fix committed to
https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1441 but I am
waiting till there is a 44.1 tag before rebasing, branching, and
proposing a new triple buffering patch to salsa. I will also be away
till Monday so it probably won't happen before then.
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** Tags added: fixed-upstream
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https://bugs.launchpad.net/bugs/2017097
Title:
[raspi] GNOME Shell runs at 30 FPS unless the CPU is being stressed
To manage notificati
Fixed in mutter 44.1 which is now in Ubuntu 23.10
** Changed in: mutter (Ubuntu)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/2017097
T
** Also affects: mutter (Ubuntu Lunar)
Importance: Undecided
Status: New
** Changed in: mutter (Ubuntu Lunar)
Importance: Undecided => Medium
** Changed in: mutter (Ubuntu Lunar)
Status: New => In Progress
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