[SOLVED] Lock screen after upgrade...

[invex]

LM21C
4k monitor, 150% scaling
Upgraded from 20.3.
After the upgrade, the lock screen is unusable.
The computer becomes unstable, a partial desktop is shown, and the only way to exit is to power off.
Any suggestion?

[SMG]

LM21C
4k monitor, 150% scaling
Upgraded from 20.3.
After the upgrade, the lock screen is unusable.
The computer becomes unstable, a partial desktop is shown, and the only way to exit is to power off.

I am not aware of the computer becoming "unstable", but the lock screen showing a partial desktop is a known bug. Please see this topic Lock screen security issue (imo)5.

Any suggestion?

Describe what you mean about the system being unstable and provide system information.

Open the System Reports app and click the System Information tab on the left. Your computer's information should come up in the right pane. Then click Copy, and paste the results into a reply window here so we can see how Linux Mint views your hardware.

[invex]

Thank you for your help.
Instead of 'unstable' I should've used 'unusable'.
Unusable because I can't get out of it.
I captured one picture, but the screen constantly changes.

Code: Select all

System:
  Kernel: 5.15.0-53-generic x86_64 bits: 64 compiler: gcc v: 11.2.0 Desktop: Cinnamon 5.4.12
    tk: GTK 3.24.33 wm: Mutter dm: LightDM Distro: Linux Mint 21 Vanessa base: Ubuntu 22.04 jammy
Machine:
  Type: Desktop Mobo: ASRock model: NUC-8265U serial: <superuser required>
    UEFI: American Megatrends v: P1.20 date: 09/26/2019
Battery:
  Device-1: hidpp_battery_0 model: Logitech MK700 serial: <filter> charge: 70% (should be ignored)
    status: Discharging
  Device-2: hidpp_battery_1 model: Logitech G305 Lightspeed Wireless Gaming Mouse
    serial: <filter> charge: 100% (should be ignored) status: Discharging
CPU:
  Info: quad core model: Intel Core i5-8265U bits: 64 type: MT MCP arch: Comet/Whiskey Lake
    note: check rev: C cache: L1: 256 KiB L2: 1024 KiB L3: 6 MiB
  Speed (MHz): avg: 1803 high: 1830 min/max: 400/3900 cores: 1: 1800 2: 1800 3: 1800 4: 1800
    5: 1800 6: 1800 7: 1800 8: 1830 bogomips: 28800
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
Graphics:
  Device-1: Intel WhiskeyLake-U GT2 [UHD Graphics 620] vendor: ASRock driver: i915 v: kernel
    ports: active: DP-1 off: eDP-1 empty: DP-2,HDMI-A-1,HDMI-A-2 bus-ID: 00:02.0 chip-ID: 8086:3ea0
  Device-2: Microsoft LifeCam Cinema type: USB driver: snd-usb-audio,uvcvideo bus-ID: 1-2.1:4
    chip-ID: 045e:075d
  Device-3: Aveo USB2.0 UVC PC Camera type: USB driver: uvcvideo bus-ID: 1-2.4.1:8
    chip-ID: 1871:7670
  Display: x11 server: X.Org v: 1.21.1.3 driver: X: loaded: modesetting unloaded: fbdev,vesa
    gpu: i915 display-ID: :0 screens: 1
  Screen-1: 0 s-res: 5120x2880 s-dpi: 144
  Monitor-1: DP-1 model: Philips PHL 278E1 res: 5120x2880 dpi: 218 diag: 685mm (27")
  OpenGL: renderer: Mesa Intel UHD Graphics 620 (WHL GT2) v: 4.6 Mesa 22.0.5 direct render: Yes
Audio:
  Device-1: Intel Cannon Point-LP High Definition Audio vendor: ASRock driver: snd_hda_intel
    v: kernel bus-ID: 00:1f.3 chip-ID: 8086:9dc8
  Device-2: Microsoft LifeCam Cinema type: USB driver: snd-usb-audio,uvcvideo bus-ID: 1-2.1:4
    chip-ID: 045e:075d
  Sound Server-1: ALSA v: k5.15.0-53-generic running: yes
  Sound Server-2: PulseAudio v: 15.99.1 running: yes
  Sound Server-3: PipeWire v: 0.3.48 running: yes
Network:
  Device-1: Intel Ethernet I219-V vendor: ASRock driver: e1000e v: kernel port: N/A
    bus-ID: 00:1f.6 chip-ID: 8086:15be
  IF: eno1 state: down mac: <filter>
  Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet vendor: ASRock driver: r8169
    v: kernel pcie: speed: 2.5 GT/s lanes: 1 port: 3000 bus-ID: 02:00.0 chip-ID: 10ec:8168
  IF: enp2s0 state: down mac: <filter>
  Device-3: Intel Wireless-AC 9260 driver: iwlwifi v: kernel pcie: speed: 5 GT/s lanes: 1
    bus-ID: 03:00.0 chip-ID: 8086:2526
  IF: wlp3s0 state: up mac: <filter>
  IF-ID-1: docker0 state: down mac: <filter>
  IF-ID-2: virbr0 state: down mac: <filter>
Bluetooth:
  Device-1: Intel Wireless-AC 9260 Bluetooth Adapter type: USB driver: btusb v: 0.8 bus-ID: 1-6:3
    chip-ID: 8087:0025
  Report: hciconfig ID: hci0 rfk-id: 1 state: up address: <filter> bt-v: 3.0 lmp-v: 5.1
    sub-v: 100
Drives:
  Local Storage: total: 2.29 TiB used: 1.84 TiB (80.6%)
  ID-1: /dev/nvme0n1 vendor: Samsung model: SSD 970 PRO 512GB size: 476.94 GiB speed: 31.6 Gb/s
    lanes: 4 serial: <filter> temp: 51.9 C
  ID-2: /dev/sda type: USB vendor: Crucial model: CT2000P2 SSD8 size: 1.82 TiB serial: <filter>
Partition:
  ID-1: / size: 459.28 GiB used: 226.22 GiB (49.3%) fs: ext4 dev: /dev/nvme0n1p2
Swap:
  ID-1: swap-1 type: file size: 2 GiB used: 0 KiB (0.0%) priority: -2 file: /mnt/swapfile
USB:
  Hub-1: 1-0:1 info: Hi-speed hub with single TT ports: 12 rev: 2.0 speed: 480 Mb/s
    chip-ID: 1d6b:0002
  Hub-2: 1-2:2 info: VIA Labs USB2.0 Hub ports: 4 rev: 2.1 speed: 480 Mb/s chip-ID: 2109:2817
  Device-1: 1-2.1:4 info: Microsoft LifeCam Cinema type: Video,Audio
    driver: snd-usb-audio,uvcvideo rev: 2.0 speed: 480 Mb/s chip-ID: 045e:075d
  Device-2: 1-2.2:5 info: Logitech USB Receiver type: Keyboard,Mouse,HID
    driver: logitech-djreceiver,usbhid rev: 2.0 speed: 12 Mb/s chip-ID: 046d:c53f
  Device-3: 1-2.3:6 info: Logitech Unifying Receiver type: Keyboard,Mouse,HID
    driver: logitech-djreceiver,usbhid rev: 2.0 speed: 12 Mb/s chip-ID: 046d:c52b
  Hub-3: 1-2.4:7 info: VIA Labs USB2.0 Hub ports: 4 rev: 2.1 speed: 480 Mb/s chip-ID: 2109:2817
  Device-1: 1-2.4.1:8 info: Aveo USB2.0 UVC PC Camera type: Video driver: uvcvideo rev: 2.0
    speed: 480 Mb/s chip-ID: 1871:7670
  Device-2: 1-2.4.2:9 info: Samsung M301x Series type: Printer driver: usblp rev: 2.0
    speed: 480 Mb/s chip-ID: 04e8:3334
  Hub-4: 1-2.4.4:10 info: VIA Labs USB2.0 Hub ports: 4 rev: 2.1 speed: 480 Mb/s
    chip-ID: 2109:2817
  Device-1: 1-2.4.4.3:11 info: Shenzhen Riitek wireless mini keyboard with touchpad
    type: Keyboard,Mouse driver: hid-generic,usbhid rev: 1.1 speed: 12 Mb/s chip-ID: 1997:2433
  Device-2: 1-6:3 info: Intel Wireless-AC 9260 Bluetooth Adapter type: Bluetooth driver: btusb
    rev: 2.0 speed: 12 Mb/s chip-ID: 8087:0025
  Hub-5: 2-0:1 info: Super-speed hub ports: 6 rev: 3.1 speed: 10 Gb/s chip-ID: 1d6b:0003
  Device-1: 2-1:2 info: JMicron / USA JMS567 SATA 6Gb/s bridge type: Mass Storage driver: uas
    rev: 3.2 speed: 5 Gb/s chip-ID: 152d:0562
  Hub-6: 2-2:3 info: VIA Labs USB3.0 Hub ports: 4 rev: 3.1 speed: 5 Gb/s chip-ID: 2109:0817
  Hub-7: 2-2.4:4 info: VIA Labs USB3.0 Hub ports: 4 rev: 3.1 speed: 5 Gb/s chip-ID: 2109:0817
  Hub-8: 2-2.4.4:5 info: VIA Labs USB3.0 Hub ports: 4 rev: 3.1 speed: 5 Gb/s chip-ID: 2109:0817
Sensors:
  System Temperatures: cpu: 58.0 C pch: 61.0 C mobo: N/A
  Fan Speeds (RPM): N/A
Repos:
  Packages: 5120 note: see --pkg apt: 5071 flatpak: 26 snap: 23
  No active apt repos in: /etc/apt/sources.list
  Active apt repos in: /etc/apt/sources.list.d/atareao-telegram-jammy.list
    1: deb http: //ppa.launchpad.net/atareao/telegram/ubuntu jammy main
  Active apt repos in: /etc/apt/sources.list.d/christian-boxdoerfer-fsearch-stable-focal.list
    1: deb http: //ppa.launchpad.net/christian-boxdoerfer/fsearch-stable/ubuntu focal main
  Active apt repos in: /etc/apt/sources.list.d/enpass.list
    1: deb https: //apt.enpass.io/ stable main
  No active apt repos in: /etc/apt/sources.list.d/estmob-sendanywhere.list
  Active apt repos in: /etc/apt/sources.list.d/google-chrome.list
    1: deb [arch=amd64] http: //dl.google.com/linux/chrome/deb/ stable main
  Active apt repos in: /etc/apt/sources.list.d/google-earth-pro.list
    1: deb [arch=amd64] http: //dl.google.com/linux/earth/deb/ stable main
  No active apt repos in: /etc/apt/sources.list.d/home:manuelschneid3r.list
  Active apt repos in: /etc/apt/sources.list.d/megasync.list
    1: deb [signed-by=/usr/share/keyrings/meganz-archive-keyring.gpg] https: //mega.nz/linux/repo/xUbuntu_22.04/ ./
  Active apt repos in: /etc/apt/sources.list.d/nodesource.list
    1: deb [signed-by=/usr/share/keyrings/nodesource.gpg] https: //deb.nodesource.com/node_16.x focal main
    2: deb-src [signed-by=/usr/share/keyrings/nodesource.gpg] https: //deb.nodesource.com/node_16.x focal main
  Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list
    1: deb https: //muug.ca/mirror/linuxmint/packages vanessa main upstream import backport
    2: deb http: //muug.ca/mirror/ubuntu jammy main restricted universe multiverse
    3: deb http: //muug.ca/mirror/ubuntu jammy-updates main restricted universe multiverse
    4: deb http: //muug.ca/mirror/ubuntu jammy-backports main restricted universe multiverse
    5: deb http: //security.ubuntu.com/ubuntu/ jammy-security main restricted universe multiverse
  No active apt repos in: /etc/apt/sources.list.d/skype-stable.list
  Active apt repos in: /etc/apt/sources.list.d/teejeetech-aptik.list
    1: deb [arch=amd64 signed-by=/usr/share/keyrings/teejeetech-aptik-keyring.gpg] https: //packages.teejeetech.com/aptik/0/v7olh6U5KE/ubuntu/focal/amd64 stable main
  Active apt repos in: /etc/apt/sources.list.d/teejeetech-homi.list
    1: deb [arch=amd64 signed-by=/usr/share/keyrings/teejeetech-homi-keyring.gpg] https: //packages.teejeetech.com/homi/hkpWT8yY1pjgyDj/ubuntu/focal/amd64 stable main
  Active apt repos in: /etc/apt/sources.list.d/teejeetech-lpt-service-manager.list
    1: deb [arch=amd64 signed-by=/usr/share/keyrings/teejeetech-lpt-service-manager-keyring.gpg] https: //packages.teejeetech.com/lpt-service-manager/qjE3jJTceg/ubuntu/focal/amd64 stable main
  Active apt repos in: /etc/apt/sources.list.d/vivaldi.list
    1: deb [arch=amd64] https: //repo.vivaldi.com/stable/deb/ stable main
  Active apt repos in: /etc/apt/sources.list.d/wavebox-stable.list
    1: deb [arch=amd64] https: //download.wavebox.app/stable/linux/deb/ amd64/
Info:
  Processes: 417 Uptime: 3m Memory: 18.93 GiB used: 7.8 GiB (41.2%) Init: systemd v: 249
  runlevel: 5 Compilers: gcc: 11.3.0 alt: 11/5/7/8/9 Client: Unknown python3.10 client
  inxi: 3.3.13

[SMG]

Thank you for your help.
Instead of 'unstable' I should've used 'unusable'.
Unusable because I can't get out of it.

Try turning the monitor off and then back on. You only have one screen as compared to the person in this comment, but maybe that will work so you are not hard powering-down the computer.

You are running jammy, but it seems you still focal (LM20) repos.

Code: Select all

Repos:
  Active apt repos in: /etc/apt/sources.list.d/christian-boxdoerfer-fsearch-stable-focal.list
    1: deb http: //ppa.launchpad.net/christian-boxdoerfer/fsearch-stable/ubuntu focal main

    1: deb [arch=amd64 signed-by=/usr/share/keyrings/teejeetech-aptik-keyring.gpg] 
https: //packages.teejeetech.com/aptik/0/v7olh6U5KE/ubuntu/focal/amd64 stable main
  Active apt repos in: /etc/apt/sources.list.d/teejeetech-homi.list
    1: deb [arch=amd64 signed-by=/usr/share/keyrings/teejeetech-homi-keyring.gpg] 
https: //packages.teejeetech.com/homi/hkpWT8yY1pjgyDj/ubuntu/focal/amd64 stable main

Have you checked with a live session of Linux Mint 21 to see if the behaviour is exactly the same? You would want to rule out the upgrade being part of the issue.

[invex]

Thank you again for the tips.

Turning the monitor off/on didn't help.
Live USB - it only blanked the screen for about six seconds. The same thing in guest account that I tried too.

However, I found the culprit.
Fractional scaling. After all, it says 'experimental' in the settings

The strange thing is that in 20.3 fractional scaling worked flawlessly.

[SMG]

Fractional scaling. After all, it says 'experimental' in the settings

The strange thing is that in 20.3 fractional scaling worked flawlessly.

The windows manager was completely rebased in LM21 to be closer to the Mutter defaults.

Interestingly, fractional scaling is on by default in LM21. It is not on by default in LM20.3.

[invex]

Now it makes sense.

[invex]

Upgrade to 21.1 fixed it.