Screen Won't Come Back After Blank Screen

[Nadene Seiters]

The Power Saving option was set for the screen to go blank after five minutes. After the update, the screen will now not come back on when the mouse or keyboard is utilized. The computer appears to be still operational as it's registering keystrokes, but it must be restarted in order for the screen to come back up.

ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: xorg 1:7.7+22ubuntu1
ProcVersionSignature: Ubuntu 5.11.0-1019.20-raspi 5.11.22
Uname: Linux 5.11.0-1019-raspi aarch64
ApportVersion: 2.20.11-0ubuntu65.3
Architecture: arm64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: unknown
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Fri Oct 1 10:22:59 2021
DistUpgraded: 2021-08-11 11:39:13,437 DEBUG Running PostInstallScript: '/usr/lib/ubuntu-advantage/upgrade_lts_contract.py'
DistroCodename: hirsute
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:

ImageMediaBuild: 20201022
Lspci-vt: -[0000:00]---00.0-[01]----00.0 VIA Technologies, Inc. VL805 USB 3.0 Host Controller
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 004: ID 248a:8367 Maxxter Telink Wireless Receiver
 Bus 001 Device 003: ID 0424:2504 Microchip Technology, Inc. (formerly SMSC)
 Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: coherent_pool=1M 8250.nr_uarts=0 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 video=HDMI-A-1:1680x1050M@60 video=HDMI-A-2:1680x1050M@60 smsc95xx.macaddr=DC:A6:32:B4:5C:3E 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
UpgradeStatus: Upgraded to hirsute on 2021-08-11 (50 days ago)
acpidump:

version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.105-3~21.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 21.0.3-0ubuntu0.3
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.11-1ubuntu1.1
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 appears the vc4 kernel driver (Broadcom GPU) is crashing a lot in HDMI functions. We should treat this as a duplicate of bug 1944397 until proven otherwise.