Screen freezes (stays black) after Lock (win+L or via Menu>Lock)

[Marcos R. Tosetti]

This started to happen after installing the last update last week. If I lock the screen (using either Win+L or opening the menu and clicking Lock) the screen turns to black and it doesn't come back anymore. I know the system is still operational since the NumLock button still responds (turns on and off If I press it) and the HotSpot still works on my phone, but the screen just doesn't come back from black. This wasn't an issue before the update, it is very recent. Thank you very much!

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.4.0-37.41-generic 5.4.41
Uname: Linux 5.4.0-37-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.2
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Fri Jun 12 22:51:13 2020
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
DkmsStatus:
 virtualbox, 6.1.6, 5.4.0-33-generic, x86_64: installed
 virtualbox, 6.1.6, 5.4.0-37-generic, x86_64: installed
ExtraDebuggingInterest: Yes, if not too technical
GpuHangFrequency: Several times a day
GpuHangReproducibility: Yes, I can easily reproduce it
GpuHangStarted: Within the last week or two
GraphicsCard:
 Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller])
   Subsystem: Dell Haswell-ULT Integrated Graphics Controller [1028:0640]
   Subsystem: Dell Radeon R7 M260/M265 [1028:0640]
MachineType: Dell Inc. Inspiron 5447
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-37-generic root=UUID=45c56570-89cf-4b2d-8f15-ee1ce0d54f68 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/12/2014
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A05
dmi.board.name: 0MHP6R
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A05
dmi.modalias: dmi:bvnDellInc.:bvrA05:bd08/12/2014:svnDellInc.:pnInspiron5447:pvrA05:rvnDellInc.:rn0MHP6R:rvrA01:cvnDellInc.:ct8:cvrA05:
dmi.product.family: 00
dmi.product.name: Inspiron 5447
dmi.product.sku: Inspiron 5447
dmi.product.version: A05
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.102+git2006051830.5ab603~oibaf~f
version.libgl1-mesa-dri: libgl1-mesa-dri 20.2~git2006110730.27b7b8~oibaf~f
version.libgl1-mesa-glx: libgl1-mesa-glx 20.2~git2006110730.27b7b8~oibaf~f
version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20200226-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1

[Daniel van Vugt (vanvugt)]

This is *probably* bug 1877774 so wait until that fix is released for 20.04.

If the problem still happens after that then please follow these instructions:

  https://wiki.ubuntu.com/Bugs/Responses#Missing_a_crash_report_or_having_a_.crash_attachment

[Launchpad Janitor (janitor)]

[Expired for gnome-shell (Ubuntu) because there has been no activity for 60 days.]