** Description changed:
+ [ Impact ]
+
+ Nvidia Wayland sessions sometimes flood the log with
+ "clutter_frame_clock_notify_presented: code should not be reached"
+
+ This is almost harmless except that it wastes disk space and the high
+ frequency of messages (one per frame) impacts desktop performance.
+
+ [ Test Plan ]
+
+ 0. Start with either an Nvidia-only desktop providing that bug 2060268
+ is NOT fixed yet; or an Nvidia desktop which also has an integrated GPU
+ enabled such that Nvidia is configured as the primary (boot) GPU in the
+ BIOS and a monitor is plugged into EACH GPU.
+
+ 1. Log into a Wayland session.
+
+ 2. Run:
+
+ journalctl -f /usr/bin/gnome-shell
+
+ and verify there is not a flood of messages with each screen redraw.
+
+ [ Where problems could occur ]
+
+ Wayland multi-GPU startup is the code affected here so any configuration
+ expecting to use multiple GPUs simultaneously in a Wayland session may
+ be affected.
+
+ While bug 2060268 is unresolved even single GPU Nvidia systems will be
+ affected due to the phantom GPU resulting from that bug.
+
+ [ Original description ]
+
Nvidia Wayland sessions sometimes flood the log with:
[ 13.105877] computer gnome-shell[1264]:
(../clutter/clutter/clutter-frame-clock.c:332):clutter_frame_clock_notify_presented:
code should not be reached
[ 13.106163] computer gnome-shell[1264]:
(../clutter/clutter/clutter-frame-clock.c:332):clutter_frame_clock_notify_presented:
code should not be reached
[ 13.112490] computer gnome-shell[1264]:
(../clutter/clutter/clutter-frame-clock.c:332):clutter_frame_clock_notify_presented:
code should not be reached
[ 13.125302] computer gnome-shell[1264]:
(../clutter/clutter/clutter-frame-clock.c:332):clutter_frame_clock_notify_presented:
code should not be reached
[ 13.142242] computer gnome-shell[1264]:
(../clutter/clutter/clutter-frame-clock.c:332):clutter_frame_clock_notify_presented:
code should not be reached
I've been seeing the issue for months although it only seems to happen
*after* something has gone wrong in mutter. Not by default.
** Also affects: mutter (Ubuntu Noble)
Importance: Undecided
Status: New
** Also affects: mutter (Ubuntu Oracular)
Importance: Medium
Assignee: Daniel van Vugt (vanvugt)
Status: Fix Committed
** Changed in: mutter (Ubuntu Noble)
Assignee: (unassigned) => Daniel van Vugt (vanvugt)
** Changed in: mutter (Ubuntu Noble)
Importance: Undecided => Medium
** No longer affects: mutter (Ubuntu Noble)
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https://bugs.launchpad.net/bugs/1967707
Title:
Nvidia Wayland sessions sometimes flood the log with
"clutter_frame_clock_notify_presented: code should not be reached"
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