Specs: Acer Nitro 5 AN515-44
OS: Manjaro Linux x86_64
Host: Nitro AN515-44 V1.01
Kernel: 5.8.16-2-MANJARO
Shell: zsh 5.8
Resolution: 1920x1080, 1920x1080
DE: Plasma 5.19.5
WM: KWin
CPU: AMD Ryzen 5 4600H with Radeon Graphics (12) @ 3.000GHz
GPU: AMD ATI 05:00.0 Renoir (integrated GPU)
GPU: NVIDIA 01:00.0 NVIDIA Corporation TU117M (nvidia GeForce GTX 1650, with the proprietary driver: video-hybrid-amd-nvidia-455xx-prime)
I am experiencing some very weird screen flickering issues, that happen periodically about every 2 seconds. I have recoded it with my phone in slow motion to help me debug it better, as to my eyes it looks like a quick flicker.
To me this looks like the Xorg session spazzing out, and simultaneously the screen’s backlight dims for a brief moment.
This is happening with the default config that mhwd set up, as well as the live usb, although right now I have set up optimus-manager to be able to switch to the nvidia GPU only, as the HDMI output only works in this mode.
The weirdest behaviour is that this happens always when it’s running from the integrated graphics only, and in hybrid mode, and more often than not in the nvidia only mode as well.
However, if I reboot a couple times to the nvidia-only mode sometimes it fixes itself, if not, then when I plug in my second monitor, then it fixes itself, and if still not, then a reboot to the hybrid mode and then again to the nvidia mode, then it’s fine like 3 of 5 times.
And when it’s working, then it words fine… until I turn the laptop screen off, and then back on (either by it timing out or closing the laptop lid), then even in nvidia-only mode, the flicker is back, until I go through the rebooting trial and error bit again.
This was happening with the 450 nvidia drivers, as well as the new 455 drivers.
I have checked out a few more distros, to see if this is a manjaro-only problem, and I have found that while on Linux Mint there is no weird flickering, I can not adjust the screen brightness, and it’s stuck to max value.
EndeavourOS has the same issues as manjaro
I’m not sure how even I would go about debugging this.
I’m reasonably tech and linux savvy, but I don’t know what log files I would need to have a look at.
$ mhwd --listinstalled
> Installed PCI configs:
--------------------------------------------------------------------------------
NAME VERSION FREEDRIVER TYPE
--------------------------------------------------------------------------------
video-hybrid-amd-nvidia-455xx-prime 2020.10.04 false PCI
video-linux 2018.05.04 true PCI
Warning: No installed USB configs!
Also, when trying to switch from nvidia-only to integrated-only or hybrid mode, the screen is just black, and when switching to the second TTY, it says this: Imgur link: https://imgur.com/a/f9pR90x
[ 285.136172] [drm:dpcd_set_source_specific_data [amdgpu]] *ERROR* Error in DP aux read transaction, not writing source specific data
I’d appreciate some guidance with this.