FS#62741 - [linux-lts 4.19.31-1] system stuttering a few times per minute

Attached to Project: Arch Linux
Opened by Jimi Bove (Jimi-James) - Saturday, 25 May 2019, 23:05 GMT
Last edited by freswa (frederik) - Saturday, 22 February 2020, 22:06 GMT
Task Type Bug Report
Category Packages: Core
Status Closed
Assigned To No-one
Architecture All
Severity High
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:
The entire system visually freezes and audibly stutters for about 1 second, at least as often as every 30 seconds or so, and sometimes as often as every few seconds. It even happens while the system is idle with no video or audio playing.


Additional info:
Nothing shows up in dmesg.

Curiously, the stutter does not affect the audio going through my Bluetooth headphones via PulseAudio, but the same source of audio will stutter through my speakers via JACK.

The stutter has lasted through multiple hardware changes. It's affected me on an X99 motherboard running an i7-5820K, as well as my current X470 board and Ryzen 2700X CPU. And now I've blacklisted the sound card in modprobe.d and am using a USB StarTech ICUSBAUDIO7D instead (because of https://bugzilla.kernel.org/show_bug.cgi?id=195303). The stutter persists, meaning the cause must be down to one of my PCI devices:
-AMD RX 550
-AMD R9 Fury as the offloading DRI_PRIME=1 card
-Juli@ XTe (another sound card meant for recording)
-a USB3 card with 4 ports
It's likely the video cards, as the other 2 cards are not being used at the moment.

I still have a lot more troubleshooting tests ahead of me (even before I try bisecting the kernel), but it's such an insane amount that I figured I'd post this here first and see if anyone else has noticed anything or has some insight.
This task depends upon

Closed by  freswa (frederik)
Saturday, 22 February 2020, 22:06 GMT
Reason for closing:  None
Additional comments about closing:  This seems pretty stalled to me. If it's still an issue, please fill a re-open request. Thank you :)
Comment by Andreas Radke (AndyRTR) - Sunday, 26 May 2019, 10:26 GMT
That kernel is old. Does it happen with latest -lts kernel and also with 5.1.x stock Arch kernel? And I've never heard of such issues lately.
Comment by Jimi Bove (Jimi-James) - Sunday, 26 May 2019, 17:27 GMT
Yes, it happens with the latest -lts (4.19.45-1). I'm testing the regular kernel now (5.1.4.arch1-1), and the stutter seems to be gone.

I took so long to get to figuring this issue out that I guess it's already been patched out! Without ever being reported as a bug, since I scoured bugs.kernel.org and bugs.freedesktop.org for anything like this.

Loading...