On Wed, Apr 29, 2026 at 2:50 PM Andrea paz <gamberucci.andrea@gmail.com> wrote:
I only use non-sRGB mode, since I use a wide-gamut ICC profile created with the Spider 5. Right now, it doesn't work in any color manager—neither in colord (X11, KDE) nor in “Settings → Display” (Wayland, KDE). My ICC profile displays incorrect colors: AdobeRGB; sRGB; Rec.709; DCI-P3. The monitor displays very dark, almost black screens. I don’t know why; the only combination that works for me is using the custom profile but without my ICC—it automatically uses the monitor’s default profile (Dell UP2716D). In short, nothing works on the graphics side, and I think it’s time to format and reinstall Arch from scratch.
I’ve already tried comparing GIMP and CinGG using test images. There are small differences (mainly in brightness or gamma, I’m not sure) but I don’t know how to evaluate them.
I've already installed libdisplay-info on my system as a dependency for other programs, but I can't find any di-edid-print. When I run:
$ /usr/bin/di-edid-decode /sys/class/drm/card1-DP-3/edid
I get the result I've attached, but it doesn't include the same information you posted.
In short, I’m not particularly concerned about my own specific situation, which I can’t seem to resolve. I just wanted to change or remove the section on colors in the manual; if I’ve understood your responses correctly, you should only use an sRGB monitor (preferably calibrated); any other color space is counterproductive.
PS:
- zscale applies to the track, but when I try to edit the primaries or primariesin, the Compositor goes black. I'm getting the following errors in the terminal:
I think you need to change some parameters in synchro, probably primaries/trc/gamut (?) cat ~/.bcast5/F_zscale.xml 384 370 <F_ZSCALE w=3840 width=3840 h=2160 height=2160 size="" s="" dither=0 d=0 filter=5 f=5 out_range=0 range=0 r=0 primaries=9 p=9 transfer=15 t=15 matrix=1 m=1 in_range=1 rangein=1 rin=1 primariesin=9 pin=9 transferin=14 tin=14 matrixin=1 min=1 chromal=1 c=1 chromalin=0 cin=0 npl=0.000000 agamma=true param_a=0.000000 param_b=0.000000 threads=0>
PluginFVClient::process_buffer() F_zscale err: Generic error in an external library
- I apply Libplacebo to the track, but everything immediately turns black, even without adjusting any parameters. I'm getting the following errors in the terminal:
PluginFVClient::activate() F_libplacebo err: Invalid argument PluginFVClient::process_buffer() F_libplacebo err: Operation not permitted