Recurring short freeze / stutter / lag / soft lockup on Wayland - Sway

paperlunch · Today 08:01:43

Hi,

I have a fresh installation of Arch Linux running Wayland, Sway on an Asus Rog laptop (~2021) with an AMD CPU, iGPU and an Nvidia dGPU (Nvidia driver). Three outputs are used, the built-in screen and two external monitors.

I've been experiencing short freezes lasting around or less then a second. Sometimes often, several times a minute, sometimes not occurring for tens of minutes. The UI and mouse become unresponsive, sound glitches and skips. If a key is being pressed when the freeze starts it's repeated 30 times by the time the freeze ends. It is unpredictable when the freeze happens, sometimes when moving windows around, sometimes when simply using vim in the terminal.

How should I go about diagnosing the problem, what log files, debug output should I be looking at? What information should I post here so that the issue can be better triangulated?

Thank you.

- AMD Ryzen 7 4800H with Radeon Graphics
- GeForce RTX 3050 Ti Mobile

Last edited by paperlunch (Today 08:32:06)

seth · Today 10:29:57

For general oversight and kernel problems
Please post your complete system journal for the boot after such freezes

sudo journalctl -b | curl -F 'file=@-' 0x0.st

Then monitor top to see whether and which process(es) hog the CPU and to see whether sway is victim or culprit, try a different display server (i3, weston, hyprland, …)

paperlunch · Today 11:46:04

Kernel logs: http://0x0.st/Pq52.txt. i3 worked fine without freezes. Hyperland had short lags but not complete freezes.

seth · Today 14:46:47

So sway specific - are you running sway on the AMD or the nvidia GPU (and please post your Xorg log, https://wiki.archlinux.org/title/Xorg#General for that configuration and comparism)
Also maybe your sway config, check whether it consumes a lot of CPU and in doubt run it in debug mode, https://github.com/swaywm/sway/wiki#troubleshooting

Sidebar, disable iwd.service and in doubt see https://wiki.archlinux.org/title/Networ … Fi_backend

Arch Linux

#1 Today 08:01:43

Recurring short freeze / stutter / lag / soft lockup on Wayland - Sway

#2 Today 10:29:57

Re: Recurring short freeze / stutter / lag / soft lockup on Wayland - Sway

#3 Today 11:46:04

Re: Recurring short freeze / stutter / lag / soft lockup on Wayland - Sway

#4 Today 14:46:47

Re: Recurring short freeze / stutter / lag / soft lockup on Wayland - Sway

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