https://bugs.kde.org/show_bug.cgi?id=527693
Bug ID: 527693
Summary: Severe performance degradation after upgrade to 6.8.1
from 6.7 (or 6.8.0)
Classification: Plasma
Product: kwin
Version First 6.8.1
Reported In:
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: performance
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 197561
--> https://bugs.kde.org/attachment.cgi?id=197561&action=edit
Playing in the lobby notice the difference between fps in the monitor and
mangohud
DESCRIPTION
Not sure if this the exact same issue as bug #527628 or nor. I'm running into a
similar problem, although I can not identify whether this is KDE-related or
MESA- (or something else entirely-related).
This is an Arch system, with a RX9070/Ryzen 5600X/32Gb of RAM.
* Twin monitor setup, main on displayport/144Hz/Freesync. Second monitor over
HDMI, no freesync
* Both monitors have associated ICM profiles with them.
Up to 6.7.x I've playing for more than a year the game The Finals. Have not
played for a week, updated Arch and installed the latest game patch. A
STEPS TO REPRODUCE
1. Update from 6.7.x (possibly 6.8.0) to 6.8.1
2. Run the game on a Freesync monitor, preferably with an ICM profile
OBSERVED RESULT
Game launches with jerky movement and vast flickering. Monitor OSD panel
reports a significant mismatch between the actual frames reported in the
monitor OSD panel and the actual fps reported by mangohud (see the first
attachment).
If, OTOH, the user pops up the game config overlay, the jerkiness is gone and
monitor OSD and mangohud fps figures match.
EXPECTED RESULT
No flickering should be visible, no jerky movement, FPS figures reported by
the monitor OSD and mangohud should match.
SOFTWARE/OS VERSIONS
Operating System (available in the Info Center app, or by running `kinfo` in a
terminal window):
KDE Plasma Version: 6.8.1
KDE Frameworks Version: 6.31.0
Qt Version: 6.12.0
kernel: 7.2.11-arch1-1
Arch kwin package version: 6.8.1-2
ADDITIONAL INFORMATION
OS: Arch Linux x86_64
Kernel: Linux 7.2.11-arch1-1
Init System: systemd 262.1-1-arch
Display (27GL850): 2560x1440 in 27", 144 Hz [External] *
Display (S22C570): 1920x1080 in 22", 60 Hz [External]
Brightness (27GL850): 72% [External]
Monitor (27GL850): 2560x1440 px @ 144 Hz - 597x336 mm (26.97 inches, 108.90
ppi) [HDR Compatible]
Monitor (S22C570): 1920x1080 px @ 60 Hz - 477x268 mm (21.54 inches, 102.27 ppi)
Desktop Environment: KDE Plasma 6.8.1
Window Manager: KWin (Wayland)
CPU: AMD Ryzen 5 5600X (12) @ 4.65 GHz - 57.6°C
GPU: AMD Radeon RX 9070 (56) @ 2.12 GHz - 51.0°C (4.51 GiB / 15.92 GiB, 28%)
[Discrete]
Codec (Encoder - Mesa Gallium driver 26.2.5-arch1.1 for AMD Radeon RX 9070
(radeonsi, gfx1201, ACO, DRM 3.64, 7.2.11-arch1-1)): H.264, HEVC / H.265, AV1
Codec (Decoder - Mesa Gallium driver 26.2.5-arch1.1 for AMD Radeon RX 9070
(radeonsi, gfx1201, ACO, DRM 3.64, 7.2.11-arch1-1)): MJPEG, H.264, HEVC /
H.265, VP9, AV1
Memory: 12.47 GiB / 31.26 GiB (40%)
Vulkan: 1.4.354 - radv [Mesa 26.2.5-arch1.1]
OpenGL: 4.6 (Compatibility Profile) Mesa 26.2.5-arch1.1
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