Have been struggling with this one for a while.
Short version
Problem: interrupts with BT connected devices. Mouse stutters, headphones choke at random time intervals.
Hardware: Ryzen 9900x, MSI x870 Tomahawk Wifi, Kingston Fury Beast ddr5 6000, beQuiet 850w PSU, no GPU, one m.2 drive.
Fedora 41.
Actually detailed version
Have been struggling with this build for a month. First there were “postcode 44” (not my picture, but still - https://forum-en.msi.com/index.php?threads/severe-x870-tomahawk-issues.405974/#post-2296830).
That one I believe got solved by rebuilding the system (screwed in the aio block to the point I felt ‘more will definitely break something’). Or maybe a suggestion with setting ‘power-off-on’ for reboot in the bootloader.
Now I have this one (it was present from the start. Not related to me tightening the cpu block). I have a Sony WH-1000XM3 headphones, and I have a Roccat Kone Air mouse. Both had zero problems with the previous system (also today tested it through windows-to-go).
Listening to YT has a periodic static/muffle/package drop sound. Also the Headphones seem to connect like the antenna is broken.
IF I connect the mouse, which has a high DPI (not sure how this information is relevant), the upper problem is amplified by a huge amount.
Today I finally got my Windows-to-GO on a m.2 drive in a separate USB-C enclosure (and regret ever trying this through a USB stick). I can confirm that even with prime95/aida/cinebench the BT (and everything else) works like a charm. So I’m crossing out “hardware”.
I had a theory that this may be related to the m.2 slot, so I swapped it to the lowest one. Here the results are inconclusive since there was a Fedora update, which I installed in the morning, before starting Windows-to-GO, so I cannot really tell if the next part has to do with changing the m.2 slot, or was it related to the update. Or even the fact that Windows-to-GO installed the drivers, which wrote some config to the device (and I did had this situation with a Creative sound card).
But:
- I had issues with even pairing the headphones (tried two headphones - Sony and Oppo). Both were junky.
- I tried (without actual knowledge) tinkering with bluez.conf, enabling multi-profile and fast pairing. Didn’t help much.
- After that I managed to create a pairing by ‘bluetoothctl’. Here I spotted two things:
a) the connected mouse (although for some strange reason the cursor speed is quite slow if to compare to the test, done a few days before) did not increase the junkiness of the sound distortion
b) the distorting was still there and showing itself with regular frequency.
One other thing to note. I have a case, Lian Li SUP01, where the fans and AiO are sitting behind the mobo. Meaning there is no actual airflow directed at the mobo. BUT - I specifically connected two fans and aimed them to blow air against the lower section/chipset. Nothing changed.