I have the similar problems with latest Arch Linux.
I don’t see the connection dropping completely often, but the performance often degrades heavily to just 2-3MByte/s when copying a file from my NAS over a Wifi-6 connection (Wifi-5 works fine and achieves 70-80MB/s).
I have very recent firmware (probably the latest available?):
$ sudo dmesg | grep 792
[ 22.949038] mt7921e 0000:01:00.0: ASIC revision: 79220010
[ 23.030434] mt7921e 0000:01:00.0: HW/SW Version: 0x8a108a10, Build Time: 20240716163242a
[ 23.045935] mt7921e 0000:01:00.0: WM Firmware Version: ____000000, Build Time: 20240716163327
and also a very recent kernel:
$ uname --all
Linux spectre 6.10.10-arch1-1 #1 SMP PREEMPT_DYNAMIC Thu, 12 Sep 2024 17:21:02 +0000 x86_64 GNU/Linux
And I think the BIOS version is also the latest available, unless I missed an update:
$ sudo dmidecode -s bios-version
03.05
I’m seeing a lot of messages like this in journalctl
:
Sep 17 04:42:45 spectre wpa_supplicant[2074]: wlan0: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-50 noise=9999 txrate=1200900
Sep 17 04:42:48 spectre wpa_supplicant[2074]: wlan0: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-41 noise=9999 txrate=1200900
Sep 17 04:42:51 spectre wpa_supplicant[2074]: wlan0: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-42 noise=9999 txrate=960700
Sep 17 04:42:54 spectre wpa_supplicant[2074]: wlan0: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-38 noise=9999 txrate=960700
Not sure what this means exactly, but I guess noise=9999 isn’t good?
OTOH, I also get those messages when connected to a Wifi-5 AP, while copying with >80MB/s at 5GHz, so it might be irrelevant.
I noticed the following:
- This only seems to happen with Wifi-6 Access Points (both with my recent-ish Fritz!Box Cable 6660 and a friend’s Netgear AP) - Wifi-5 APs seem to work fine and have good performance
- As far as I can tell (from running
watch -n1 iwconfig
while testing) this only happens at 5GHz (Frequency:5.6 GHz
or similar), at 2.4GHz it seems to be more stable and I get 30-40MB/s (which maybe isn’t super-great, but 10x as fast as what I get with 5GHz)
- This means that the problem can appear resolved if a users current connection happens to use 2.4GHz
- Usually (at 5GHz) the download or copying starts relatively fast (around 50MB/s or so) and then over time degrades to 2-4MB/s, even though iwconfig shows a high Bit Rate and good Link Quality
When I tested this with my Fritz!Box I was at most 2 meters away from it, without any obstacles in the way.
As this issue doesn’t appear fixable (or at least hasn’t been fixed by the driver developers despite being known for a long time now) I’d like to suggest that Framework starts putting Intel Wifi Cards (which AFAIK don’t have these problems) in the AMD laptops, at least as an option.
Update: By the way, I also tested disabling wifi powersave (sudo iw dev wlan0 set power_save off
), it didn’t make a difference.