[Bug 111400] Prime offloading to iGPU leads to highly stretched window content

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111400

--- Comment #3 from tempel.julian at gmail.com ---
You either need to adjust your xorg config to set up GPUs for prime offloading
or you have to use xorg-server git-master which recently received a feature to
do this automatically.

Of course the iris driver is only for Intel GPUs, but unlike i965, it supports
offloading also from the dGPU to the iGPU, and not just from the iGPU to the
dGPU. A good reason for doing this e.g. would be saving power in some
circumstances where maximum performance is not required.

I'm attaching two images of glxgears in default window size (garbled) and
maximized (correct).

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