SUMMARY I noticed that the mouse latency (refresh rate?) while moving over certain windows during certain times. For example, when Firefox is loading a rather heavy page. Perhaps its during times when many redraws are happening? Can be easily reproduced with Godot in about 10 seconds. I noticed that when you wiggle the mouse to make it bigger, the effect goes away, as in the big cursor does not suffer from this effect. STEPS TO REPRODUCE 1. Set a monitor to a 60Hz refresh rate 2. Open Godot and make a new project 3. Select 2D Scene on the left hand side as your root node 4. Hit the play button on the top right 5. Maximize the window 6. Move cursor around on window OBSERVED RESULT The mouse appears to update less frequently EXPECTED RESULT The mouse updates as frequently as without the window SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 6.5.3 KDE Frameworks Version: 6.20.0 Qt Version: 6.10.0 Kernel Version: 6.17.8-arch1-1 (64-bit) Graphics Platform: Wayland Processors: 16 × AMD Ryzen 7 9800X3D 8-Core Processor Memory: 64 GiB of RAM (60.5 GiB usable) Graphics Processor 1: NVIDIA GeForce RTX 5090/PCIe/SSE2 Graphics Processor 2: NVIDIA GeForce RTX 5090/PCIe/SSE2
> I noticed that the mouse latency (refresh rate?) while moving over certain windows during certain times. Yeesh, this should read as: > I noticed that the mouse latency *INCREASES* (refresh rate? decreases) while moving over certain windows during certain times.
Please attach the output of > kscreen-doctor -o
(In reply to Zamundaaa from comment #2) > Please attach the output of > > kscreen-doctor -o ❯ kscreen-doctor -o Output: 1 HDMI-A-1 9c4b6152-51ea-435a-a459-8cd8db8cfaab enabled connected priority 4 HDMI replication source:0 Modes: 1:1920x1080@60.00*! 2:1920x1080@74.91 3:1920x1080@75.00 4:1920x1080@59.94 5:1920x1080@50.00 6:1680x1050@59.95 7:1280x1024@75.03 8:1280x1024@60.02 9:1440x900@59.89 10:1280x960@60.00 11:1366x768@59.79 12:1152x864@75.00 13:1280x720@60.00 14:1280x720@59.94 15:1280x720@50.00 16:1024x768@75.03 17:1024x768@70.07 18:1024x768@60.00 19:800x600@75.00 20:800x600@72.19 21:800x600@60.32 22:800x600@56.25 23:720x576@50.00 24:720x480@59.94 25:640x480@75.00 26:640x480@72.81 27:640x480@59.94 28:640x480@59.93 Geometry: 3840,1080 1920x1080 Scale: 1 Rotation: 1 Overscan: 0 Vrr: incapable RgbRange: unknown HDR: incapable Wide Color Gamut: incapable ICC profile: none Color profile source: sRGB Color power preference: prefer accuracy Brightness control: supported, set to 95% and dimming to 100% Color resolution: unknown Allow EDR: unsupported Sharpness control: unsupported Output: 2 DP-1 ea79fc31-a160-4837-a943-3da19c59b8c1 enabled connected priority 1 DisplayPort replication source:0 Modes: 29:1920x1080@60.00! 30:1920x1080@144.00* 31:1920x1080@119.98 32:1920x1080@99.93 33:1920x1080@84.90 34:1920x1080@59.94 35:1920x1080@50.00 36:1680x1050@59.95 37:1280x1024@75.03 38:1280x1024@60.02 39:1440x900@59.89 40:1280x960@60.00 41:1280x800@59.81 42:1152x864@75.00 43:1280x720@60.00 44:1280x720@59.94 45:1280x720@50.00 46:1024x768@75.03 47:1024x768@70.07 48:1024x768@60.00 49:800x600@75.00 50:800x600@72.19 51:800x600@60.32 52:800x600@56.25 53:720x576@50.00 54:720x480@59.94 55:640x480@75.00 56:640x480@59.94 57:640x480@59.93 Geometry: 1920,1080 1920x1080 Scale: 1 Rotation: 1 Overscan: 0 Vrr: incapable RgbRange: unknown HDR: incapable Wide Color Gamut: incapable ICC profile: none Color profile source: sRGB Color power preference: prefer accuracy Brightness control: supported, set to 95% and dimming to 100% DDC/CI: disallowed Color resolution: unknown Allow EDR: unsupported Sharpness control: unsupported Output: 3 DP-2 b3221f6c-ed72-4159-a506-b9a4eabdf846 enabled connected priority 2 DisplayPort replication source:0 Modes: 58:1920x1080@60.00*! 59:1680x1050@59.95 60:1400x1050@59.98 61:1600x900@60.00 62:1280x1024@75.03 63:1280x1024@60.02 64:1440x900@59.89 65:1280x800@59.81 66:1152x864@75.00 67:1280x720@60.00 68:1024x768@75.03 69:1024x768@60.00 70:800x600@75.00 71:800x600@60.32 72:800x600@56.25 73:640x480@75.00 74:640x480@59.94 Geometry: 1920,0 1920x1080 Scale: 1 Rotation: 1 Overscan: 0 Vrr: incapable RgbRange: unknown HDR: incapable Wide Color Gamut: incapable ICC profile: none Color profile source: sRGB Color power preference: prefer accuracy Brightness control: supported, set to 95% and dimming to 100% DDC/CI: disallowed Color resolution: unknown Allow EDR: unsupported Sharpness control: unsupported Output: 4 DP-3 85ac2324-0a50-499f-b337-bcefef9a5d3a enabled connected priority 3 DisplayPort replication source:0 Modes: 75:1920x1080@60.00*! 76:1920x1080@74.91 77:1920x1080@75.00 78:1920x1080@59.94 79:1920x1080@50.00 80:1680x1050@59.95 81:1280x1024@75.03 82:1280x1024@60.02 83:1440x900@59.89 84:1280x960@60.00 85:1366x768@59.79 86:1152x864@75.00 87:1280x720@60.00 88:1280x720@59.94 89:1280x720@50.00 90:1024x768@75.03 91:1024x768@70.07 92:1024x768@60.00 93:800x600@75.00 94:800x600@72.19 95:800x600@60.32 96:800x600@56.25 97:720x576@50.00 98:720x480@59.94 99:640x480@75.00 100:640x480@72.81 101:640x480@59.94 102:640x480@59.93 Geometry: 0,1080 1920x1080 Scale: 1 Rotation: 1 Overscan: 0 Vrr: incapable RgbRange: unknown HDR: incapable Wide Color Gamut: incapable ICC profile: none Color profile source: sRGB Color power preference: prefer accuracy Brightness control: supported, set to 95% and dimming to 100% Color resolution: unknown Allow EDR: unsupported Sharpness control: unsupported
I actually cannot recreate this issue anymore. If nothing is jumping out from kscreen-doctor output this can be closed. Thank you
> Color power preference: prefer accuracy You probably want to set that back to the default, it's very unlikely you want the inefficiency that comes with this setting. But yeah, if the issue doesn't happen anymore, no need to keep the bug report open. If it does happen again, just reopen it.