gnome-gamma-tool
gnome-gamma-tool | wl-gammactl | |
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5 | 6 | |
86 | 44 | |
- | - | |
3.7 | 0.0 | |
2 months ago | 6 months ago | |
Python | C | |
- | MIT License |
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gnome-gamma-tool
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Tune your low quality display by reducing gamma
I purchased a mint condition T490 recently but I found the display to be inferior compared to the touchscreen of my T460. Both have 45% NTSC coverage but the T460 is pretty good in my opinion while I thought the T490 is too bright, almost washed out (it came with the standard FHD IPS AUO panel). Then I realized that it's actually the gamma that is too much for my liking and this is something that you can control from software. So I set it to 90% with this tool and voilá the display now has more contrast and looks much better to me. Difference is pretty big actually, it went from I want to replace it to it's perfectly fine in a blink of an eye. Absolutely recommended!
- Desperately need to adjust saturation
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Setting screen gamma under Gnome Wayland?
I haven't tried it yet myself, but gnome-gamma-tool looks promising.
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Adjust Gamma in Wayland
Try using this
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Setting Contrast Value in Wayland
However, this does not work in Wayland since it obviously belongs to the X Window System. I started searching the web for a possible solution and found wl-gammactl, which is a GUI for wlroots (https://github.com/mischw/wl-gammactl) and the gnome-gamma-tool (https://github.com/zb3/gnome-gamma-tool), but neither of them seemed to work because of missing dependencies, which can't be installed or invalid version numbers of required packages (e.g. found 1.20 but need: '>=1.23'). When attempting to build the gnome-gamma-tool, the following error message appears (despite Colord being installed):
wl-gammactl
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Actually Portable Vim (With a Cute Vimrc)
I don't know what you mean by color management - is it the calibration of the display with xrite/argyll?
For ICC profiles colormgr can help: https://wiki.archlinux.org/title/ICC_profiles#Wayland
If you just need basic brightness, contrast and gamma, wl-gammactl should do that: https://github.com/mischw/wl-gammactl
BTW Hyprland is not required, it's just the most practical way to have shortcuts key mappings in Wayland
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Setting Contrast Value in Wayland
However, this does not work in Wayland since it obviously belongs to the X Window System. I started searching the web for a possible solution and found wl-gammactl, which is a GUI for wlroots (https://github.com/mischw/wl-gammactl) and the gnome-gamma-tool (https://github.com/zb3/gnome-gamma-tool), but neither of them seemed to work because of missing dependencies, which can't be installed or invalid version numbers of required packages (e.g. found 1.20 but need: '>=1.23'). When attempting to build the gnome-gamma-tool, the following error message appears (despite Colord being installed):
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Being productive in Plasma 5.23.2 - So I've heard KDE Plasma is bad with Wayland and multi-monitors...
It's very much possible with Wayland. Whether Plasma supports it is another question, unfortunately. Great program though, you can control it with commands and set an invert screen colors keybind.
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How to invert screen colors?
What would be the best way to implement this? I tried wl-gammactl https://github.com/mischw/wl-gammactl with those settings but the screen just goes fully white?
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Import gamma colors from X11 to Wayland
Probably it just support sway as said here on github
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How to control OLED brightness in Wayland
Wayland is the protocol applications use to talk to compositors. What you need to control (this kind of-, since I assume you want a software overlay) brightness depends on the compositor/desktop environment you use. For wlroots based compositors (wayfire, sway) wl-gammactl or wlr-brightness could be useful. For Gnome (below version 40) the soft-brightness extension looks like what you need.
What are some alternatives?
gromit-mpx - Gromit-MPX is an on-screen annotation tool that works with any Unix desktop environment under X11 as well as Wayland.
wlr-brightness - Adjust the brightness of wlroots-based compositors such as sway.
xcalib - Load 'vcgt'-tag of ICC profiles to X-server and MS-Windows. Works on calibration stage, which can be a precondition for display ICC color conversions.
kiwmi - A fully programmable Wayland Compositor
nautilus-pdf-tools - Tools to work with PDF files from Nautilus
swaybg - Wallpaper tool for Wayland compositors
imaging - Imaging is a simple image processing package for Go
wlroots - A modular Wayland compositor library
swaylock - Screen locker for Wayland
wdisplays - GUI display configurator for wlroots compositors
swayidle - Idle management daemon for Wayland