It looks like the upgrade hasn't worked. For example you still have old Mesa packages installed.
First please fully update your system: sudo apt update sudo apt full-upgrade and then reboot. If the problem still persists then please take a photo of the problem and attach the photo here. ** Package changed: xorg (Ubuntu) => ubuntu ** Changed in: ubuntu Status: New => Incomplete ** Summary changed: - Xorg freeze + Pixelation of the top bar and sometimes the desktop icons are also shown pixelated -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1875321 Title: Pixelation of the top bar and sometimes the desktop icons are also shown pixelated Status in Ubuntu: Incomplete Bug description: I recently upgraded to ubuntu 20.04 beleiving that it was LTS, but later found out that it was the development branch. In this version frequent lags occur while using applications like google chrome. There is pixelation of the top bar and sometimes the desktop icons are also shown pixelated while using some application. It happens very frequently , say every 5 minutes and is very annoying. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xorg 1:7.7+19ubuntu13 ProcVersionSignature: Ubuntu 5.4.0-12.15-generic 5.4.8 Uname: Linux 5.4.0-12-generic x86_64 ApportVersion: 2.20.11-0ubuntu15 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Mon Apr 27 13:26:49 2020 DistUpgraded: 2020-04-26 12:30:47,179 ERROR got error from PostInstallScript ./xorg_fix_proprietary.py (g-exec-error-quark: Failed to execute child process “./xorg_fix_proprietary.py” (No such file or directory) (8)) DistroCodename: focal DistroVariant: ubuntu GpuHangFrequency: I don't know GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] Raven Ridge [Radeon Vega Series / Radeon Vega Mobile Series] [1002:15dd] (rev d1) (prog-if 00 [VGA controller]) Subsystem: Dell Raven Ridge [Radeon Vega Series / Radeon Vega Mobile Series] [1028:0814] InstallationDate: Installed on 2019-08-25 (245 days ago) InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805) MachineType: Dell Inc. Latitude 5495 ProcEnviron: LANGUAGE=en_IN:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_IN SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-12-generic root=UUID=a179bb7b-3ed3-4bf0-8a71-c50b5713f917 ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: Upgraded to focal on 2020-04-26 (1 days ago) dmi.bios.date: 06/20/2018 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.2.3 dmi.board.name: 0G9F45 dmi.board.vendor: Dell Inc. dmi.board.version: X02 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.2.3:bd06/20/2018:svnDellInc.:pnLatitude5495:pvr:rvnDellInc.:rn0G9F45:rvrX02:cvnDellInc.:ct10:cvr: dmi.product.family: Latitude dmi.product.name: Latitude 5495 dmi.product.sku: 0814 dmi.sys.vendor: Dell Inc. version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.100-4 version.libgl1-mesa-dri: libgl1-mesa-dri 19.2.4-1ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx 19.2.4-1ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.20.6-1ubuntu1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20190815-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1875321/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp