Need help troubleshooting NIC (ethernet card) on Manjaro KDE

[megavolt]

1. It is not an ethernet problem, but a problem with suspend which caused a problem with ethernet, as you proved:

@andrewysk

Hence i reboot the desktop with it own kernel (5.4) and behold, the problem has disappeared.

2. That could be somewhat related to the rendering with opengl instead of xrender with some low GPUs like this intel one:

@andrewysk

00:02.0 VGA compatible controller: Intel Corporation 82Q35 Express Integrated Graphics Controller (rev 02)

What could affect this:

@andrewysk

but each terminal i opened now to to run “nmcli” the terminals are in freeze… both terminal freezed…

However… As I read from your posts, it works, except you suspend and wake up you pc. Is that correct?

If so, then I would rather say that there is Firmware Bug or Kernel Bug, or the firmware has not a proper implementation of the ACPI Specification, which the Linux Kernel follows strictly normally (but some BIOS Vendors make exceptions or workarounds for Windows, but left other OS).

Maybe have a look at this also:

[HowTo] Power savings setup| 2021-01-25

Difficulty: ★★★☆☆ Important things Make sure that you have installed working fine for your hardware LTS kernel or lastest stable kernel Since 4.12 kernel you have to create a /etc/udev/rules.d/60-ioschedulers.rules with setup about I/O schedulers for different types storage. HowTo is described in this article. Make sure that you have installed for your CPU Microcode Make sure that you have added the appropriate entries in the GRUB configuration file Make sure you have installed all of the …