SUMMARY On a fresh install of KDE Linux, the colors of this laptop's display are completely oversaturated, resulting in harder to read text and diminished picture quality. The display worked just fine on Windows, but I'd like not to go back. STEPS TO REPRODUCE 1. Install KDE Linux on this laptop SOFTWARE/OS VERSIONS Operating System: KDE Linux 2025-09-15 KDE Plasma Version: 6.4.80 KDE Frameworks Version: 6.19.0 Qt Version: 6.9.2 Kernel Version: 6.16.7-arch1-1 (64-bit) Graphics Platform: Wayland Processors: 4 × Intel® N150 Memory: 12 GiB of RAM (11.4 GiB usable) Graphics Processor: Intel® Graphics ADDITIONAL INFORMATION This might be a Linux in general issue, but I do not know how/where to report this. if any additional info is needed to help troubleshoot, please let me know.
Thanks for the bug report. Please run the following command while the display is oversaturated, and paste the output into this report. kscreen-doctor -o
(In reply to TraceyC from comment #1) > Thanks for the bug report. Please run the following command while the > display is oversaturated, and paste the output into this report. > > kscreen-doctor -o the output is below: $ kscreen-doctor -o Output: 1 DSI-1 eb67793c-b9da-4e89-be97-ca82ce7f3a2f enabled connected priority 1 Panel replication source:0 Modes: 1:1200x1920@52*! 2:1024x768@60 Geometry: 0,0 800x1280 Scale: 1.5 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: never Sharpness control: unsupported
Thanks for the details. I'll let the kwin developers take it from here.
> Color profile source: sRGB If you don't have a color profile set, then colors are sent unmodified to the display. > Color power preference: prefer accuracy Please don't use that if you don't need it. If you don't have a color profile, you definitely do not need it.
(In reply to Zamundaaa from comment #4) > > Color profile source: sRGB > If you don't have a color profile set, then colors are sent unmodified to > the display. > > Color power preference: prefer accuracy > Please don't use that if you don't need it. If you don't have a color > profile, you definitely do not need it. I am not sure if "Prefer Accuracy" was on or off to begin with, but it made no difference regardless of being on or off. Additionally, I found out that sometimes (rarely, maybe 1 in 20 tries) the display will load colors properly. But then the screen will inevitably go to sleep and wake up and be weird colors again.
(In reply to William Ethridge from comment #5) > I am not sure if "Prefer Accuracy" was on or off to begin with, but it made > no difference regardless of being on or off. It doesn't make a difference for color saturation. As the option says, it makes a difference for performance. > Additionally, I found out that sometimes (rarely, maybe 1 in 20 tries) the display will load colors properly. But then the screen will inevitably > go to sleep and wake up and be weird colors again. That's more interesting. What kernel driver does your integrated GPU use? You can check with drm_info. It would also be interesting to see whether or not there's a difference in the drm_info output when it's working correctly vs. when the colors are wrong.
Created attachment 185176 [details] output of drm_info command I spent a little time trying to understand this output, but honestly after a long day's work I'm a vegetable. I appreciate any help i can get!
(In reply to William Ethridge from comment #7) > Created attachment 185176 [details] > output of drm_info command > > I spent a little time trying to understand this output, but honestly after a > long day's work I'm a vegetable. I appreciate any help i can get! Keep in mind I have no idea what I'm talking about, but my current theory is: mylaptop's panel is likely wide-gamut (closer to DCI-P3, hi quality and usually used in tablets), but without color management, all sRGB content gets blown out.
Okay, so it's i915. (In reply to William Ethridge from comment #8) > Keep in mind I have no idea what I'm talking about, but my current theory > is: mylaptop's panel is likely wide-gamut (closer to DCI-P3, hi quality and > usually used in tablets), but without color management, all sRGB content > gets blown out. Yes, that's why I suggested you should set a color profile. It still doesn't explain why it would sometimes be different though... Maybe the Intel driver is doing something wrong when addressing the display and changing it into some compatibility mode. If you do use the built-in color profile, do things look correct?