Same here. Still not fixed in 5.8.0-63. Package installed: linux-generic-hwe-20.04/focal-updates,focal-security,now 5.8.0.63.71~20.04.45 amd64 [installed]
Downgrade to 5.8.0-43-generic fixes the issue. $ cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 58 model name : Intel(R) Core(TM) i5-3470 CPU @ 3.20GHz stepping : 9 microcode : 0x21 cpu MHz : 2318.777 cache size : 6144 KB ... ** Attachment added: "another example of how it looks like (mostly appears when text selected)" https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-5.8/+bug/1934652/+attachment/5513159/+files/kubuntu_bug_1934652.png -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-signed-hwe-5.8 in Ubuntu. https://bugs.launchpad.net/bugs/1934652 Title: Graphics Tearing on 5.8 kernel (Intel(R) HD Graphics 2500, Ivy Bridge) Status in linux-signed-hwe-5.8 package in Ubuntu: Confirmed Bug description: Intel(R) Core(TM) i5-3470 with Intel(R) HD Graphics 2500 Problems experienced on fresh install of kubuntu or mate 20.04.02 (Automatically) Chosen kernel in these instances is the 5.8 kernel. NO issues with the 5.4 kernel - or the 5.8.0-48 kernel Problem: Operating system graphics (eg kubuntu calendar) and firefox (using webrender) have issues (see attached for example) This bug follows on from #1924624 Description: Ubuntu 20.04.2 LTS Release: 20.04 ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.8.0-59-generic 5.8.0-59.66~20.04.1 ProcVersionSignature: Ubuntu 5.8.0-59.66~20.04.1-generic 5.8.18 Uname: Linux 5.8.0-59-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.16 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: KDE Date: Mon Jul 5 09:49:19 2021 InstallationDate: Installed on 2021-07-05 (0 days ago) InstallationMedia: Kubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1) SourcePackage: linux-signed-hwe-5.8 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-5.8/+bug/1934652/+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
