Random Screen Flashing with LM21.1 Cinnamom

[AZgl1800]

I have had random cases of the Panel flashing really bad, at times.

Sometimes, the mouse just happens to scroll over an Icon on the Desktop, or across the Panel border, never been able to pinpoint the exact happen-stance, until just now.

I was scrolling down a web forum page to read the posts in a thread, and then the flashing started, I stopped immediately to grab my cellphone and make a video

Anyone any idea of what is causing this situation?

https://youtu.be/BoBrc9-gD98

Code: Select all

john@FX705GM:~$ inxi -Fxpmrz
System:
  Kernel: 5.17.0-1026-oem x86_64 bits: 64 compiler: gcc v: 11.3.0
    Desktop: Cinnamon 5.6.7 Distro: Linux Mint 21.1 Vera
    base: Ubuntu 22.04 jammy
Machine:
  Type: Laptop System: ASUSTeK product: TUF Gaming FX705GM_FX705GM v: 1.0
    serial: <superuser required>
  Mobo: ASUSTeK model: FX705GM v: 1.0 serial: <superuser required>
    UEFI: American Megatrends v: FX705GM.307 date: 05/25/2020
Battery:
  ID-1: BAT0 charge: 50.5 Wh (100.0%) condition: 50.5/64.1 Wh (78.7%)
    volts: 15.6 min: 15.6 model: Simplo SDI ICR18650 status: Full
  Device-1: hidpp_battery_0 model: Logitech Wireless Mouse M510
    charge: 55% (should be ignored) status: Discharging
Memory:
  RAM: total: 15.48 GiB used: 3.24 GiB (20.9%)
  RAM Report:
    permissions: Unable to run dmidecode. Root privileges required.
CPU:
  Info: 6-core model: Intel Core i7-8750H bits: 64 type: MT MCP
    arch: Coffee Lake rev: A cache: L1: 384 KiB L2: 1.5 MiB L3: 9 MiB
  Speed (MHz): avg: 800 min/max: 800/4100 cores: 1: 800 2: 800 3: 800
    4: 800 5: 800 6: 800 7: 800 8: 800 9: 800 10: 800 11: 800 12: 800
    bogomips: 52799
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
Graphics:
  Device-1: Intel CoffeeLake-H GT2 [UHD Graphics 630] vendor: ASUSTeK
    driver: i915 v: kernel bus-ID: 00:02.0
  Device-2: NVIDIA GP106M [GeForce GTX 1060 Mobile] vendor: ASUSTeK
    driver: nvidia v: 515.86.01 bus-ID: 01:00.0
  Device-3: IMC Networks USB2.0 HD UVC WebCam type: USB driver: uvcvideo
    bus-ID: 1-11:4
  Display: x11 server: X.Org v: 1.21.1.3 driver: X:
    loaded: modesetting,nvidia unloaded: fbdev,nouveau,vesa gpu: i915
    resolution: 1920x1080~60Hz
  OpenGL: renderer: Mesa Intel UHD Graphics 630 (CFL GT2)
    v: 4.6 Mesa 22.0.5 direct render: Yes
Audio:
  Device-1: Intel Cannon Lake PCH cAVS vendor: ASUSTeK
    driver: sof-audio-pci-intel-cnl bus-ID: 00:1f.3
  Device-2: NVIDIA GP106 High Definition Audio driver: snd_hda_intel
    v: kernel bus-ID: 01:00.1
  Sound Server-1: ALSA v: k5.17.0-1026-oem 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 Cannon Lake PCH CNVi WiFi driver: iwlwifi v: kernel
    bus-ID: 00:14.3
  IF: wlo1 state: up mac: <filter>
  Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
    vendor: ASUSTeK driver: r8169 v: kernel port: 3000 bus-ID: 03:00.0
  IF: enp3s0 state: down mac: <filter>
  IF-ID-1: virbr0 state: down mac: <filter>
Bluetooth:
  Device-1: Intel Bluetooth 9460/9560 Jefferson Peak (JfP) type: USB
    driver: btusb v: 0.8 bus-ID: 1-14:5
  Report: hciconfig ID: hci0 rfk-id: 1 state: up address: <filter>
    bt-v: 3.0 lmp-v: 5.1
Drives:
  Local Storage: total: 1.38 TiB used: 392.68 GiB (27.9%)
  ID-1: /dev/nvme0n1 vendor: Intel model: SSDPEKNW512G8 size: 476.94 GiB
    temp: 28.9 C
  ID-2: /dev/sda vendor: Samsung model: SSD 860 EVO 1TB size: 931.51 GiB
Partition:
  ID-1: / size: 43.33 GiB used: 21.23 GiB (49.0%) fs: ext4 dev: /dev/sda2
  ID-2: /boot/efi size: 256 MiB used: 30.3 MiB (11.8%) fs: vfat
    dev: /dev/nvme0n1p1
  ID-3: /home size: 409.83 GiB used: 198.64 GiB (48.5%) fs: ext4
    dev: /dev/sda4
  ID-4: /mnt/83601e83-13ac-4887-b8d6-7928f1be3245 size: 448.78 GiB
    used: 172.78 GiB (38.5%) fs: ext4 dev: /dev/sda3
Swap:
  Alert: No swap data was found.
Sensors:
  System Temperatures: cpu: 44.0 C pch: 41.0 C mobo: 27.8 C
  Fan Speeds (RPM): cpu: 0
Repos:
  Packages: 2582
  No active apt repos in: /etc/apt/sources.list
  No active apt repos in: /etc/apt/sources.list.d/jeanslack-videomass-focal.list
  No active apt repos in: /etc/apt/sources.list.d/kelebek333-mint-tools-focal.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/official-package-repositories.list
    1: deb http://packages.linuxmint.com vera main upstream import backport
    2: deb http://archive.ubuntu.com/ubuntu jammy main restricted universe multiverse
    3: deb http://archive.ubuntu.com/ubuntu jammy-updates main restricted universe multiverse
    4: deb http://archive.ubuntu.com/ubuntu jammy-backports main restricted universe multiverse
    5: deb http://security.ubuntu.com/ubuntu/ jammy-security main restricted universe multiverse
  Active apt repos in: /etc/apt/sources.list.d/opera-stable.list
    1: deb https://deb.opera.com/opera-stable/ stable non-free
  Active apt repos in: /etc/apt/sources.list.d/teamviewer.list
    1: deb [signed-by=/usr/share/keyrings/teamviewer-keyring.gpg] https://linux.teamviewer.com/deb stable main
  No active apt repos in: /etc/apt/sources.list.d/teejee2008-timeshift-focal.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/JcbCJmMm7k/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
Info:
  Processes: 330 Uptime: 6h 38m Init: systemd runlevel: 5 Compilers:
  gcc: 11.3.0 Shell: Bash v: 5.1.16 inxi: 3.3.13
john@FX705GM:~$ 

[SMG]

I have had random cases of the Panel flashing really bad, at times.

That is more than just the panel flashing. The flash appears to be twice the height of the panel.

Because you took a video of it, it is possible to stop it at the time of the "flash". There is definitely color variation. It might be an issue with your screen? I don't know what else might be that size or have the color variations.

[AZgl1800]

I don't have/use a Video editor, so never even gave a thought to watching frame by frame.

sometimes, only the panel flashes, this time it was so glaring in my face, that I had to stop moving the mouse, and grab my cellphone to make a video.

I made many previous attempts to get the internal screen recorder to capture it, but touching any key stops the flashing

no clue as to how to diagnose something that disappears the instant you try to "capture" or investigate it.

[SMG]

I don't have/use a Video editor, so never even gave a thought to watching frame by frame.

I just clicked the start and stop button until I got lucky and hit a frame with the flash.

I made many previous attempts to get the internal screen recorder to capture it, but touching any key stops the flashing

Then the issue may relate to the video driver. I periodically get flashes at the bottom, but usually only when resuming the computer from suspend or waking the screen. The issue seems to come and go so I figure what I am seeing is probably related to the kernel. I've never seen it happen just out of the blue when I move my cursor; mine has only happened when the display is resuming after being off. That is happening to me with LM20.3 (Intel graphics).

[AZgl1800]

I think I am going to have to ignore it...

ah, I think I will revert back to the Intel video driver and watch that for a while.
if it is related to the Nvidia drivers, I will just stay on Intel.

[SMG]

ah, I think I will revert back to the Intel video driver and watch that for a while.
if it is related to the Nvidia drivers, I will just stay on Intel.

As I already indicated, mine is related to Intel drivers.

[AZgl1800]

No improvement with the Intel video driver,
it is still Flashing Badly,
so it is not the Nvidia Video drivers.

It is aggravating, but not a road block.

has to be some weird issue in the LM21.1 Cinnamon release.