Power monitoring bug

[9cb14c1ec0]

When a Bluetooth audio device that publishes its battery level via UPower is paired and connected, cinnamon-settings-daemon continuously emits org.freedesktop.DBus.Properties.PropertiesChanged signals on /org/cinnamon/SettingsDaemon/Power at roughly 4 or 5 times per second. The Percentage value in each signal alternates between the laptop battery and the BT device battery (e.g. 31 ↔ 60), back to back, indefinitely.

After about ~30 minutes, I start seeing the following errors in ~/.xsession-errors (~4000 occurrences over a few hours)

Gjs-CRITICAL: Attempting to call back into JSAPI during the sweeping phase of GC.
The offending signal was g-properties-changed on GDBusProxy 0x...

Gjs-CRITICAL: Attempting to run a JS callback during garbage collection.
The offending callback was paint(), a vfunc.

Clutter-WARNING: Attempting to remove actor of type 'StIcon' from group of class
'ClutterBox', but the container is not the actor's parent.

At this point, I start to notice intermittent screen blackouts lasting a fraction of a second and UI rendering lag. I can temporarily fix it by by logging out and logging back in, or by cinnamon --replace, or simply by disconnecting my headset. The problem returns after ~30 minutes.

Environment

• Distribution: Linux Mint 22.3
• Cinnamon: 6.6.7
• Kernel: 6.8.0-111-generic
• UPower: (stock Mint 22.3)
• Bluetooth device exposing battery: Shokz OpenComm headset (paired and connected)

Sample signal bodies (excerpt from dbus-monitor)

sender=:1.42 path=/org/cinnamon/SettingsDaemon/Power; interface=org.freedesktop.DBus.Properties; member=PropertiesChanged
   string "org.cinnamon.SettingsDaemon.Power"
   array [ dict entry( string "Percentage" variant uint32 31 ) ]
sender=:1.42 path=/org/cinnamon/SettingsDaemon/Power; interface=org.freedesktop.DBus.Properties; member=PropertiesChanged
   string "org.cinnamon.SettingsDaemon.Power"
   array [ dict entry( string "Percentage" variant uint32 60 ) ]

[mtwebster]

Try:

# kill twice in a row (it restarts once automatically)
$ killall csd-power
$ killall csd-power
$ csd-power --verbose

And see if there's anything useful being logged.

Another useful test is to create a new user and log in and attempt to reproduce the issue there. This could eliminate any potential user configuration conflict.

Have you tried different kernels? The cinnamon issue aside, 4-5 updates per second is pretty excessive.

[9cb14c1ec0]

I have not tried different kernels. I will try that and report back.

[9cb14c1ec0]

csd-power --verbose

No output.

Have you tried different kernels?

I have now. No difference

[HansPL]

Similar here, using a Logitech M650 mouse with BT connection: Many weeks ago I began to notice stuttering and freezing of keyboard and mouse inputs up to several seconds, also freezing of for instance video playback. (Over several kernel updates.)
After reading this bug report I disabled BT and reverted to using Logitech’s USB dongle: immediately all well again.