https://bugs.freedesktop.org/show_bug.cgi?id=110677
Bug ID: 110677
Summary: Can't invert screen colors by adjusting the gamma ramp
Product: DRI
Version: XOrg git
Hardware: Other
OS: All
Status: NEW
Severity: normal
Priority: medium
Component: DRM/AMDgpu
Assignee: dri-devel@lists.freedesktop.org
Reporter: vladz...@gmail.com
On X11, there are several ways KWin can invert screen colors: either by using
an OpenGL-based effect, or by adjusting the gamma ramp. While the former
approach works well on most hardware, we experience some issues with the latter
approach on AMD hardware.
After adjusting the gamma ramp, the screen is filled with mostly white color.
Steps to reproduce:
* Open System Settings, go to Shortcuts, select KWin component under Global
Shortcuts tab, assign custom shortcut to "Invert Screen Colors";
* Press the shortcut.
(or just use xcalib -i)
Observed results:
The screen is filled with mostly white color.
Expected results:
Inverted screen.
Hardware: Radeon RX 580
Mesa: 19.0.3
Linux: 5.0.13
xorg: 1.20.4
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