https://bugs.kde.org/show_bug.cgi?id=363888
Bug ID: 363888
Summary: False warning in viewportLimitsMatched
Product: kwin
Version: git master
Platform: Other
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: compositing
Assignee: kwin-bugs-n...@kde.org
Reporter: afies...@kde.org
XRandR allows to scale the outputs which is really useful on hidpi scenarios.
In this cases the CRTC reported size is bigger than the modes actually being
used, for example:
eDP1
CRTC: 2560x1600
Mode: 2560x1600
HDMI1
CRTC: 3840x2160
Mode: 1920x1080
HDMI2
CRTC: 3840x2160
Mode: 1920x1080
That makes a total of 10240x2160 in CRTC size which is bigger than
GL_MAX_VIEWPORT_DIMS, but actually the value of the modes is 6400 which is
under the maximum reported (8k).
Besides the warning, compositing works great, no black windows or artifacts of
any kind.
Reproducible: Always
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