Screen freeze

[Bruce Duncan]

Updated to 22.10 beta last week.

When I return after screensaver activation, the display freezes. Sometimes the greeter fades in a little bit, sometimes it is just the background image. Every time, I can move the mouse and the cursor changes when hovering over the password box (or where it would have been). I can type my password and the session unlocks. I know this because the greeter process is gone, and the mouse cursor now changes as if it were my desktop (input boxes, buttons, etc) but the display still has never updated.

This has happened about 5 times now, but reproducing it could be hard because it only seems to happen after an idle period when the screen locks itself. Manually locking/unlocking the screen works fine. Switching off the monitors with "xset dpms force off" also doesn't seem to trigger it.

There doesn't appear to be anything useful in the log files, but I think apport has attached them anyway.

Happy to do any debugging necessary.

ProblemType: Bug
DistroRelease: Ubuntu 22.10
Package: xorg 1:7.7+23ubuntu2
Uname: Linux 6.0.0-060000-generic x86_64
ApportVersion: 2.23.0-0ubuntu2
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
CompositorRunning: None
CurrentDesktop: KDE
Date: Sat Oct 8 11:12:25 2022
DistUpgraded: 2022-10-05 00:54:56,716 DEBUG Running PostInstallScript: '/usr/lib/ubuntu-advantage/upgrade_lts_contract.py'
DistroCodename: kinetic
DistroVariant: ubuntu
DkmsStatus:
 backport-iwlwifi/9904, 5.15.0-48-generic, x86_64: installed
 backport-iwlwifi/9904, 5.19.0-18-generic, x86_64: installed
 backport-iwlwifi/9904, 6.0.0-060000-generic, x86_64: installed
ExtraDebuggingInterest: Yes, including running git bisection searches
GraphicsCard:
 Advanced Micro Devices, Inc. [AMD/ATI] Renoir [1002:1636] (rev d1) (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company Renoir [103c:8760]
InstallationDate: Installed on 2021-06-24 (470 days ago)
InstallationMedia: Kubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
MachineType: HP HP EliteBook 845 G7 Notebook PC
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.0.0-060000-generic root=/dev/mapper/vgkubuntu-root ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: Upgraded to kinetic on 2022-10-04 (3 days ago)
dmi.bios.date: 07/15/2022
dmi.bios.release: 10.0
dmi.bios.vendor: HP
dmi.bios.version: S77 Ver. 01.10.00
dmi.board.name: 8760
dmi.board.vendor: HP
dmi.board.version: KBC Version 07.3A.00
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.ec.firmware.release: 7.58
dmi.modalias: dmi:bvnHP:bvrS77Ver.01.10.00:bd07/15/2022:br10.0:efr7.58:svnHP:pnHPEliteBook845G7NotebookPC:pvr:rvnHP:rn8760:rvrKBCVersion07.3A.00:cvnHP:ct10:cvr:sku8VZ07AV:
dmi.product.family: 103C_5336AN HP EliteBook
dmi.product.name: HP EliteBook 845 G7 Notebook PC
dmi.product.sku: 8VZ07AV
dmi.sys.vendor: HP
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.112-3ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 22.2.0-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx 22.2.0-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:21.1.4-2ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-3
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20210115-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2build1

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It sounds like some part of the system has crashed. To help us find the cause of the crash please follow these steps:

1. Look in /var/crash for crash files and if found run:
    ubuntu-bug YOURFILE.crash
Then tell us the ID of the newly-created bug.

2. If step 1 failed then look at https://errors.ubuntu.com/user/ID where ID is the content of file /var/lib/whoopsie/whoopsie-id on the machine. Do you find any links to recent problems on that page? If so then please send the links to us.

Please take care to avoid attaching .crash files to bugs as we are unable to process them as file attachments. It would also be a security risk for yourself.

[Bruce Duncan (bwduncan)]

Hi Daniel,

I agree it seems like that, but there are no crash reports. I'll keep checking each time it happens.

Thanks,
Bruce

[Daniel van Vugt (vanvugt)]

Next time the freeze happens, please:

1. Wait 10 seconds.

2. Reboot.

3. Run:

   journalctl -b-1 > prevboot.txt

4. Attach the resulting text file here.

[Bruce Duncan (bwduncan)]

Hi,

I have switched to wayland for the past few months and it doesn't crash. Unfortunately zoom crashes under wayland so I had to switch back to Xorg last night. When I got up this morning, the desktop was frozen. I switched to another VT and restarted sddm, then logged in on wayland. I didn't need to reboot. Therefore, I've attached the log from the *current* boot. (I zipped it).

I'm pretty sure the freeze happened at around 09:29, because there was a transient notification from the KDE tray with that timestamp stuck there :) That's around line 86211.

Hope that's helpful.

Bruce

[Bruce Duncan (bwduncan)]

Oh I should also have said, I turned off the screensaver in case that was relevant, so when I returned the screens powered on when I moved the mouse, but the desktop was completely frozen.

[Daniel van Vugt (vanvugt)]

Thanks. I don't see anything to suggest the issue is lower level than KDE so assigning there.

[Scarlett Gately Moore (scarlettmoore)]

Is this still an issue?

[Bruce Duncan (bwduncan)]

I've been using wayland since zoom started supporting it, so I haven't
seen this freeze a year. I think this can probably be closed.

Thanks,
Bruce

On 07/03/2024 10:44, Scarlett Gately Moore wrote:
> Is this still an issue?
>
> ** Changed in: kwin (Ubuntu)
> Status: New => Incomplete
>