Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v5.1-rc5 kernel [0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed”, and attach dmesg. Thanks in advance. [0] https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.1-rc5/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1825554 Title: Ryzen5 2500U Vega 8 raven ridge flickering screen Status in linux package in Ubuntu: Confirmed Bug description: Hey, I'm running Ubuntu 18.10 on a Lenovo Yoga 530 14-AHR. My display is flickering, depending on the displayed content in different frequency. Video of the symptom: https://www.dropbox.com/s/ulbqo7taspx60vv/VID_20190123_151449.mp4?dl=0 --- ProblemType: Bug ApportVersion: 2.20.10-0ubuntu13.2 Architecture: amd64 CurrentDesktop: X-Cinnamon DistroRelease: Ubuntu 18.10 InstallationDate: Installed on 2018-11-09 (160 days ago) InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3) Package: linux (not installed) Tags: cosmic Uname: Linux 5.0.0-050000-generic x86_64 UnreportableReason: The running kernel is not an Ubuntu kernel UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo users vboxusers wireshark _MarkForUpload: True --- ProblemType: Bug ApportVersion: 2.20.10-0ubuntu13.2 Architecture: amd64 CurrentDesktop: X-Cinnamon DistroRelease: Ubuntu 18.10 InstallationDate: Installed on 2018-11-09 (161 days ago) InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3) Package: linux (not installed) Tags: cosmic Uname: Linux 5.0.8-050008-generic x86_64 UnreportableReason: The running kernel is not an Ubuntu kernel UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo users vboxusers wireshark _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1825554/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp