Sometimes I come back to my computer, which was at lock screen, and when I log in again I see screen flickering. I can’t connect it to any particular event, and it doesn’t happen every time. It is a custom-built desktop with i7 ninth gen, only integrated graphics, meaning that I have no graphics card or GPU. The only thing I can think of is that the electric current was unstable and caused issues. But I don’t see this happening on other OSes, only on Manjaro.
Here is some system info
System: Host: shmuel-Manjaro Kernel: 5.9.1-1-MANJARO x86_64 bits: 64 Desktop: KDE Plasma 5.19.5 Distro: Manjaro Linux Machine: Type: Desktop Mobo: ASUSTeK model: PRIME B365M-A v: Rev X.0x serial: <superuser/root required> UEFI: American Megatrends v: 1203 date: 10/10/2019 CPU: Topology: 8-Core model: Intel Core i7-9700 bits: 64 type: MCP L2 cache: 12.0 MiB Speed: 4482 MHz min/max: 800/4700 MHz Core speeds (MHz): 1: 4482 2: 4471 3: 4468 4: 4471 5: 4461 6: 4477 7: 4460 8: 4465 Graphics: Device-1: Intel UHD Graphics 630 driver: i915 v: kernel Device-2: IMC Networks XHC Camera type: USB driver: uvcvideo Display: x11 server: X.Org 1.20.9 driver: intel unloaded: modesetting resolution: 1: 1920x1080~60Hz 2: 1920x1080~60Hz OpenGL: renderer: Mesa Intel UHD Graphics 630 (CFL GT2) v: 4.6 Mesa 20.1.8 Audio: Device-1: Intel 200 Series PCH HD Audio driver: snd_hda_intel Device-2: JMTek LLC. type: USB driver: hid-generic,snd-usb-audio,usbhid Sound Server: ALSA v: k5.9.1-1-MANJARO Network: Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet driver: r8169 IF: enp3s0 state: up speed: 1000 Mbps duplex: full mac: a8:5e:45:e2:87:3c Drives: Local Storage: total: 2.26 TiB used: 685.08 GiB (29.7%) ID-1: /dev/sda vendor: Kingston model: SA400S37480G size: 447.13 GiB ID-2: /dev/sdb vendor: Toshiba model: HDWD120 size: 1.82 TiB Partition: ID-1: / size: 76.03 GiB used: 33.02 GiB (43.4%) fs: ext4 dev: /dev/sda5 Swap: ID-1: swap-1 type: file size: 4.00 GiB used: 4.2 MiB (0.1%) file: /swapfile Sensors: System Temperatures: cpu: 29.8 C mobo: 27.8 C Fan Speeds (RPM): N/A Info: Processes: 268 Uptime: 31m Memory: 15.50 GiB used: 7.03 GiB (45.3%) Shell: Bash inxi: 3.1.05