Indeed the contents of the window (including the black rectangle) are the responsibility of the primary GPU (AMD) by default. However that window then gets composited (copied) to the screen and if that screen is connected to Nvidia like by HDMI then Nvidia is used for that fullscreen draw.
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/2026754 Title: [amdgpu][nvidia] HDMI picture not updating automatically, but only on mouse move. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-535/+bug/2026754/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
