[kde] [Bug 469505] New: Chromium applications in Wayland get increasingly slow and unresponsive and ultimately stop working

[Anna]

https://bugs.kde.org/show_bug.cgi?id=469505

            Bug ID: 469505
           Summary: Chromium applications in Wayland get increasingly slow
                    and unresponsive and ultimately stop working
    Classification: I don't know
           Product: kde
           Version: unspecified
          Platform: Gentoo Packages
                OS: Linux
            Status: REPORTED
          Severity: major
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: anna at witches.live
  Target Milestone: ---

SUMMARY

Applications that use a chromium backend such as discord and steam will be
workable for a period of time, but after an indeterminate amount of time
(sometimes an hour or two, sometimes far less, it seems to be more on how much
you interact with it than time though it's kind of both) the application will
become sluggish and unresponsive, and eventually will not change pages/views
for whatever that means in the application, such as discord not changing
servers/channels, steam not loading or getting stuck on various pages, a
chromium-based idle game I play called Increlution will eventually stop loading
some modals that e.g. show your progress on the last few runs. The
current/stable version of Steam is nigh-unusable, though the linux beta update
works a bit better for longer before freezing.

Note that when the UI becomes responsive, the application doesn't seem to be
wholly frozen. It feels like a cousin to a memory leak, like further and
further delay is added to UI interactions and at some point it causes the UI to
take an untenably long time to respond to input or stop it entirely, it's not
clear.

This only happens on Wayland it does not happen on X11.

STEPS TO REPRODUCE
1. Run a wayland session
2. Launch Discord, steam, or some other chromium application
3. The longer you use it or the more you try to do, the worse it gets

OBSERVED RESULT
Chromium-based application becomes sluggish and unresponsive, and eventually
needs to be restarted to work

EXPECTED RESULT
Chromium-based applications should continue to work responsively and well with
extended use

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Gentoo Linux 2.13 linux-6.3.1-gentoo 
KDE Plasma Version: 5.27.4
KDE Frameworks Version: 5.105.0
Qt Version: 5.15.9

ADDITIONAL INFORMATION
CPU: 32 × AMD Ryzen 9 7950X 16-Core Processor
Memory: 32 GB DDR5
GPU: NVIDIA GeForce RTX 3080 Ti/PCIe/SSE2
Motherboard: ASRock X670E Steel Legend

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