I have the flickering problem with 2560x1440 screens, AMD Radeon RX 550. tried it on two screens: asus and samsung. asus is capable of freesync, samsung not. asus can handle higher frequency, samsung 50Hz only.
On samsung it works without any problems. On asus monitor I have the same flickering problem on 75Hz, switching down to 60Hz solves the problem. I'm on Ubuntu 18.10, kernel 4.18.0-16. - with very intense flickering. Upgraded to 5.0.2 kernel manually, seems like flickering is a little bit better. -- 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/1811863 Title: [amdgpu + nvidia PCI passthrough] Screen flickering on ultra wide To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1811863/+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
