Arch Linux

Description:

Broken NVME support on Ideapad 5 Ryzen 7 4700U (15ARE05)? Slow writing speed and freeze

Additional info:
* package version(s) Kernel 5.9.3 and all previous
* config and/or log files etc. Not applicable/possible
* link to upstream bug report, if any: none

Steps to reproduce:
1. Buy an ideapad 15RE05 (Ryzen 4700U)
2. Optional and not known to be relevant: Replace NVME drive with Kingston A2000 1TB
3. Install Archlinux
4. Update the kernel and everything else to latest version
5. Perform write intensive task.
6. See the system freeze on a number of occasions, requiring a hard reset.
7: perform disk benchmark with gnome-disk-utility
8: Witness write speed 25% of spec.
9: Witness absence of drive settings and smart status in Gnome-disk-utlity

PS. In windows smart info and write speeds are fine.

Elaborated description:
I have replaced the 512 GB NVME drive with a 1TB Kingston A2000 drive. I am experiencing a number of problems:

- My system may freeze on intensive disk writes, like compiling stuff from AUR. When this happens I can still interact with the laptop as long as the process does not use the disk. Al actions that require disk io will freeze. I can only recover by hard shutdown (pressing power for 5 secs)
- When using gnome-disk-utility 3.38.0, I can not access the smart status of the drive, nor can I alter any additional settings like write cache. They are greyed out.
- When using gnome-disk-utility 3.38.0, I perform a benchmark of the disk. There I see that the readspeed is as expected around 2000 MB/s. Writespeed however is below 400 MB/s whereas it should also be around 2000 MB/s.
- I also still have windows installed on the disk, (just in case) and in windows I can access smart info just fine + Writespeed is indeed around 2000MB/s.

Is it a known fact that the disk IO chip on this system is not yet fully supported by the kernel 5.9.3 ?
Could there be an incompatibility with the kingston drive in linux?

I have not witnessed the problem with the included 512 GB NVME disk, but I have not ruled it out either as I used it only for a very limited time.

Could anyone with similar hardware perform a test whether they face similar issues?

The freezing is obviously the most serious issue. I can not reproduce logs, because they are not written.