Bug 516083

SUMMARY
i have amd gpu using wayland kde plasma de when i play game like hytale at first it runs fine then i restarted it and now 3x less fps and i have to manully adjust some settings like colour accuracy to trigger plasma monitor settings to reload the display manager and then the fps goes back to normal it happened on bazzite too same on cachy os is this some type of kde plasma bug or what am i missing?

STEPS TO REPRODUCE
1. log in
2. play hytale or alvr
3. it will stutter for no reason

OBSERVED RESULT
when i toggle settings in video settings of kde plasma it will trigger de to reload it will go back to normal performance and then it will lag again after restarting the game

EXPECTED RESULT
it should have 250 fps instead of 80 in hytale

SOFTWARE/OS VERSIONS

Linux/KDE Plasma: 6.18.10-2-cachyos-lts (64-bit)
KDE Plasma Version: 6.5.5
KDE Frameworks Version: 6.23.0
Qt Version: 6.10.2

ADDITIONAL INFORMATION

System info from steam:
Computer Information:
Manufacturer: ASUSTeK COMPUTER INC.
Model: ROG STRIX B550-F GAMING
Form Factor: Desktop
No Touch Input Detected
Processor Information:
CPU Vendor: AuthenticAMD
CPU Brand: AMD Ryzen 5 5600G with Radeon Graphics
CPU Family: 0x19
CPU Model: 0x50
CPU Stepping: 0x0
CPU Type: 0x0
Speed: 4465 MHz
12 logical processors
6 physical processors
Hyper-threading: Supported
FCMOV: Supported
SSE2: Supported
SSE3: Supported
SSSE3: Supported
SSE4a: Supported
SSE41: Supported
SSE42: Supported
AES: Supported
AVX: Supported
AVX2: Supported
AVX512F: Unsupported
AVX512PF: Unsupported
AVX512ER: Unsupported
AVX512CD: Unsupported
AVX512VNNI: Unsupported
SHA: Supported
CMPXCHG16B: Supported
LAHF/SAHF: Supported
PrefetchW: Unsupported
BMI1: Supported
BMI2: Supported
F16C: Supported
FMA: Supported
Operating System:
"CachyOS" (64 bit)
Kernel Name: Linux
Kernel Version: 6.18.10-2-cachyos-lts
X Server Vendor: The X.Org Foundation
X Server Release: 12401009
X Window Manager: KWin
Steam Runtime Version: steam-runtime_1.0.20251202.187498
Client Information:
Version: 1769025840
Browser GPU Acceleration Status: Enabled
Browser Canvas: Enabled
Browser Canvas out-of-process rasterization: Enabled
Browser Direct Rendering Display Compositor: Disabled
Browser Compositing: Enabled
Browser Multiple Raster Threads: Enabled
Browser OpenGL: Enabled
Browser Rasterization: Enabled
Browser Raw Draw: Disabled
Browser Skia Graphite: Disabled
Browser Video Decode: Enabled
Browser Video Encode: Disabled
Browser Vulkan: Disabled
Browser WebGL: Enabled
Browser WebGL2: Enabled
Browser WebGPU: Disabled
Browser WebNN: Disabled
Video Card:
Driver: AMD AMD Radeon RX 6600 (radeonsi, navi23, LLVM 21.1.6, DRM 3.64, 6.18.10-2-cachyos-lts)
Driver Version: 4.6 (Compatibility Profile) Mesa 25.3.5-arch1.2
Desktop Color Depth: 24 bits per pixel
Monitor Refresh Rate: 164 Hz
VendorID: 0x1002
DeviceID: 0x73ff
Revision Not Detected
Number of Monitors: 1
Number of Logical Video Cards: 1
Primary Display Resolution: 1920 x 1080
Desktop Resolution: 1920 x 1080
Primary Display Size: 20.75" x 11.65" (23.78" diag), 52.7cm x 29.6cm (60.4cm diag)
Primary VRAM: 8192 MB
Sound card:
Audio device: ATI R6xx HDMI
Memory:
RAM: 15779 Mb
VR Hardware:
Headset: Oculus Miramar (alvr_server)
Controller: Oculus Miramar (Left Controller) (alvr_server)
Controller: Oculus Miramar (Right Controller) (alvr_server)
No VR configuration with trackers detected
Most number of trackers in a session: 0
Miscellaneous:
UI Language: English
LANG: sk_SK.UTF-8
Total Hard Disk Space Available: 472745 MB
Largest Free Hard Disk Block: 383120 MB
Storage:
Number of SSDs: 2
SSD sizes: 500G,500G
Number of HDDs: 0
Number of removable drives: 0