This strange behaviour starting occuring a couple of days ago. What happens is that very frequently and quite easily reproducilble, my display will flickr and dim for a split second when I click certain UI elements in Nautilus (the favorite places on the left), or when just scrolling Firefox, or when hovering on open windows in Dash to Panel and also when doing many other things.
Perhaps related, perhaps not but might be worth mentioning is that when I switch Firefox tabs from a dark backgound website to a light one, I can see the page starting up somewhat dim white getting progressively brighter over a couple of seconds.
I have tried disabling all extensions, ensuring I am running all the most stable recent updates, reinstalling the nvidia drivers, doing a fresh OS install (Vanilla and Endeavour) and that was all I could think of. Nothing made any difference.
See this video for the behaviour I mention.
Kernel: 5.19.12-arch1-1 arch: x86_64 bits: 64 compiler: gcc v: 12.2.0
parameters: BOOT_IMAGE=/vmlinuz-linux
root=UUID=e9f9089e-2a7b-4784-b970-1482b5d34a8c rw rootfstype=ext4
loglevel=3 ibt=off
Desktop: GNOME v: 42.5 tk: GTK v: 3.24.34 wm: gnome-shell dm: GDM v: 42.0
Distro: Arch Linux
Machine:
Type: Laptop System: LENOVO product: 82JM v: Legion 5 17ITH6H
serial: <superuser required> Chassis: type: 10 v: Legion 5 17ITH6H
serial: <superuser required>
Mobo: LENOVO model: LNVNB161216 v: NO DPK serial: <superuser required>
UEFI: LENOVO v: H1CN49WW date: 08/16/2022
Battery:
ID-1: BAT0 charge: 71.9 Wh (86.1%) condition: 83.5/80.0 Wh (104.4%)
volts: 16.8 min: 15.4 model: Celxpert L20C4PC2 type: Li-poly
serial: <filter> status: not charging
CPU:
Info: model: 11th Gen Intel Core i7-11800H bits: 64 type: MT MCP
arch: Tiger Lake gen: core 11 level: v4 built: 2020 process: Intel 10nm
family: 6 model-id: 0x8D (141) stepping: 1 microcode: 0x40
Topology: cpus: 1x cores: 8 tpc: 2 threads: 16 smt: enabled cache:
L1: 640 KiB desc: d-8x48 KiB; i-8x32 KiB L2: 10 MiB desc: 8x1.2 MiB
L3: 24 MiB desc: 1x24 MiB
Speed (MHz): avg: 2218 high: 2300 min/max: 800/4600 scaling:
driver: intel_pstate governor: powersave cores: 1: 2300 2: 2300 3: 2300
4: 1000 5: 2300 6: 2300 7: 2300 8: 2300 9: 2300 10: 2300 11: 2300
12: 2300 13: 2300 14: 2300 15: 2300 16: 2300 bogomips: 73744
Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
Vulnerabilities:
Type: itlb_multihit status: Not affected
Type: l1tf status: Not affected
Type: mds status: Not affected
Type: meltdown status: Not affected
Type: mmio_stale_data status: Not affected
Type: retbleed status: Not affected
Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via
prctl
Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer
sanitization
Type: spectre_v2 mitigation: Enhanced IBRS, IBPB: conditional, RSB
filling, PBRSB-eIBRS: SW sequence
Type: srbds status: Not affected
Type: tsx_async_abort status: Not affected
Graphics:
Device-1: Intel TigerLake-H GT1 [UHD Graphics] vendor: Lenovo driver: i915
v: kernel arch: Gen-12.1 process: Intel 10nm built: 2020-21 ports:
active: eDP-1 empty: DP-1, DP-2, DP-3, DP-4, DP-5, HDMI-A-1
bus-ID: 00:02.0 chip-ID: 8086:9a60 class-ID: 0300
Device-2: NVIDIA GA106M [GeForce RTX 3060 Mobile / Max-Q] vendor: Lenovo
driver: nvidia v: 515.76 alternate: nouveau,nvidia_drm non-free: 515.xx+
status: current (as of 2022-08) arch: Ampere code: GAxxx process: TSMC n7
(7nm) built: 2020-22 pcie: gen: 1 speed: 2.5 GT/s lanes: 16 link-max:
gen: 4 speed: 16 GT/s bus-ID: 01:00.0 chip-ID: 10de:2560 class-ID: 0300
Device-3: Integrated Camera type: USB driver: uvcvideo bus-ID: 3-6:2
chip-ID: 174f:2459 class-ID: fe01 serial: <filter>
Display: x11 server: X.org v: 1.21.1.4 with: Xwayland v: 22.1.3
compositor: gnome-shell driver: X: loaded: modesetting,nvidia
alternate: fbdev,intel,nouveau,nv,vesa gpu: i915 display-ID: :1
screens: 1
Screen-1: 0 s-res: 1920x1080 s-size: <missing: xdpyinfo>
Monitor-1: eDP-1 model: AU Optronics 0x449d built: 2018 res: 1920x1080
hz: 144 dpi: 128 gamma: 1.2 size: 382x215mm (15.04x8.46")
diag: 438mm (17.3") ratio: 16:9 modes: 1920x1080
Message: Unable to show GL data. Required tool glxinfo missing.
Audio:
Device-1: Intel Tiger Lake-H HD Audio vendor: Lenovo driver: snd_hda_intel
v: kernel alternate: snd_sof_pci_intel_tgl bus-ID: 00:1f.3
chip-ID: 8086:43c8 class-ID: 0403
Device-2: NVIDIA GA106 High Definition Audio driver: snd_hda_intel
v: kernel pcie: gen: 1 speed: 2.5 GT/s lanes: 16 link-max: gen: 4
speed: 16 GT/s bus-ID: 01:00.1 chip-ID: 10de:228e class-ID: 0403
Sound Server-1: ALSA v: k5.19.12-arch1-1 running: yes
Sound Server-2: JACK v: 1.9.21 running: no
Sound Server-3: PulseAudio v: 16.1 running: yes
Sound Server-4: PipeWire v: 0.3.58 running: yes
Network:
Device-1: Intel Tiger Lake PCH CNVi WiFi driver: iwlwifi v: kernel
bus-ID: 00:14.3 chip-ID: 8086:43f0 class-ID: 0280
IF: wlan0 state: down mac: <filter>
Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
vendor: Lenovo driver: r8169 v: kernel pcie: gen: 1 speed: 2.5 GT/s
lanes: 1 port: 3000 bus-ID: 58:00.0 chip-ID: 10ec:8168 class-ID: 0200
IF: enp88s0 state: up speed: 1000 Mbps duplex: full mac: <filter>
Bluetooth:
Device-1: N/A type: USB driver: btusb v: 0.8 bus-ID: 3-14:4
chip-ID: 8087:0026 class-ID: e001
Report: rfkill ID: hci0 rfk-id: 3 state: up address: see --recommends
Drives:
Local Storage: total: 1.16 TiB used: 568.79 GiB (47.9%)
SMART Message: Unable to run smartctl. Root privileges required.
ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Samsung model: SSD 970 EVO Plus
250GB size: 232.89 GiB block-size: physical: 512 B logical: 512 B
speed: 31.6 Gb/s lanes: 4 type: SSD serial: <filter> rev: 2B2QEXM7
temp: 38.9 C scheme: GPT
ID-2: /dev/nvme1n1 maj-min: 259:3 vendor: SK Hynix model: HFS001TDE9X084N
size: 953.87 GiB block-size: physical: 512 B logical: 512 B
speed: 31.6 Gb/s lanes: 4 type: SSD serial: <filter> rev: 41010C22
temp: 39.9 C scheme: GPT
Partition:
ID-1: / raw-size: 232.38 GiB size: 227.68 GiB (97.97%) used: 18.42 GiB
(8.1%) fs: ext4 dev: /dev/nvme0n1p2 maj-min: 259:2
ID-2: /boot raw-size: 511 MiB size: 510 MiB (99.80%) used: 87.6 MiB
(17.2%) fs: vfat dev: /dev/nvme0n1p1 maj-min: 259:1
Swap:
Kernel: swappiness: 60 (default) cache-pressure: 100 (default)
ID-1: swap-1 type: zram size: 4 GiB used: 0 KiB (0.0%) priority: 100
dev: /dev/zram0
Sensors:
System Temperatures: cpu: 41.0 C mobo: N/A
Fan Speeds (RPM): N/A
Info:
Processes: 348 Uptime: 15m wakeups: 1 Memory: 15.41 GiB used: 3.63 GiB
(23.6%) Init: systemd v: 251 default: graphical tool: systemctl
Compilers: gcc: 12.2.0 Packages: pm: pacman pkgs: 955 libs: 284
tools: gnome-software,pamac,yay pm: flatpak pkgs: 0 Shell: Bash v: 5.1.16
running-in: gnome-terminal inxi: 3.3.21