Xorg freeze

[Xinle Yao]

gnome constantly freezes on ubuntu 21.10.

steps to reproduce:
open chromium-browser
Click on the top bar
gnome freezes instantly, requiring a hard reset.

ProblemType: Bug
DistroRelease: Ubuntu 21.10
Package: xorg 1:7.7+22ubuntu1
ProcVersionSignature: Ubuntu 5.13.0-1007.8-hostname 5.13.13
Uname: Linux 5.13.0-1007-raspi aarch64
ApportVersion: 2.20.11-0ubuntu69
Architecture: arm64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: unknown
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Wed Sep 29 15:39:12 2021
DistUpgraded: 2021-09-29 14:59:02,376 DEBUG Running PostInstallScript: '/usr/lib/ubuntu-advantage/upgrade_lts_contract.py'
DistroCodename: impish
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GpuHangFrequency: Continuously
GpuHangReproducibility: Yes, I can easily reproduce it
GpuHangStarted: Immediately after installing this version of Ubuntu
GraphicsCard:

ImageMediaBuild: 20210421
Lspci-vt: -[0000:00]---00.0-[01]----00.0 VIA Technologies, Inc. VL805/806 xHCI USB 3.0 Controller
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Lsusb-t:
 /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M
 /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/1p, 480M
     |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
ProcKernelCmdLine: coherent_pool=1M 8250.nr_uarts=0 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 video=HDMI-A-1:1360x768M@60 smsc95xx.macaddr=E4:5F:01:2C:45:7B 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
Symptom: display
Title: Xorg freeze
UpgradeStatus: Upgraded to impish on 2021-09-29 (0 days ago)
acpidump:

version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.107-1
version.libgl1-mesa-dri: libgl1-mesa-dri 21.2.1-2ubuntu2
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.13-1ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2
version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-1

[Daniel van Vugt (vanvugt)]

It seems to be the vc4 kernel driver (Broadcom graphics) that keeps crashing. I suggest we treat this as a duplicate of bug 1944397 unless proven otherwise.