Thanks. That shows 'radeon' is the common problem. Also, is "AMD R7 430" a typo? Should that be "AMD R7 340"?
** No longer affects: xserver-xorg-video-amdgpu (Ubuntu) ** Summary changed: - Display output laggy from iGPU when operating on desktop with attaching AMD R7 430 graphic (dGPU) + [radeon] Display output laggy from iGPU when operating on desktop with attaching AMD R7 430 graphic (dGPU) ** Tags removed: amdgpu ** Also affects: xorg-server (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-amdgpu in Ubuntu. https://bugs.launchpad.net/bugs/1923153 Title: [radeon] Display output laggy from iGPU when operating on desktop with attaching AMD R7 430 graphic (dGPU) To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1923153/+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