Full KMS hardware support is available in newer kernels (5.10.x I think) so please try installing a newer arm64 kernel like:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.10.8/ -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1911030 Title: Graphical flashes on a raspi 4 Status in mesa package in Ubuntu: New Status in xorg-server package in Ubuntu: New Bug description: Using gnome-shell - activities - see attached video Graphics flash - more prominent with more than one app running. If you install ubuntu-budgie-desktop and simply move through the menu categories the flashing is even more prominent. I'm guessing this is xorg related - but I do note the recent mesa uplift has made things worse ProblemType: Bug DistroRelease: Ubuntu 21.04 Package: xorg 1:7.7+19ubuntu15 ProcVersionSignature: Ubuntu 5.8.0-1011.14+21.04.1-raspi 5.8.18 Uname: Linux 5.8.0-1011-raspi aarch64 ApportVersion: 2.20.11-0ubuntu55 Architecture: arm64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Mon Jan 11 16:49:14 2021 DistUpgraded: Fresh install DistroCodename: hirsute DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: ImageMediaBuild: 20201225 Lspci-vt: -[0000:00]---00.0-[01]----00.0 VIA Technologies, Inc. VL805 USB 3.0 Host Controller ProcKernelCmdLine: coherent_pool=1M 8250.nr_uarts=0 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1 video=HDMI-A-1:640x480M@60 smsc95xx.macaddr=DC:A6:32:D1:3E:28 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 dwc_otg.lpm_enable=0 console=tty1 root=LABEL=writable rootfstype=ext4 elevator=deadline rootwait fixrtc quiet splash SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) acpidump: version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.103-2 version.libgl1-mesa-dri: libgl1-mesa-dri 20.3.2-1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A 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/+source/mesa/+bug/1911030/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
