On 2021-07-23 at 18:33, Dan Ritter wrote: > The Wanderer wrote: > >> On 2021-07-23 at 16:44, piorunz wrote: >> >> > Hello, >> > >> > I am using Bullseye 11 with Radeon 6800 XT and noticed higher >> > temperature and noise comparing to Windows, so I investigated this and >> > found the fault. GPU core works at 100% usage at all times, even at idle. >> > >> > $ cat /sys/class/drm/card0/device/gpu_busy_percent >> > 99 >> >> That's interesting. I get the same output from that command (with a 5600 >> XT), but I'm not noticing any meaningful noise that seems to be coming >> from the card. > > RX560: 0 Permit me to correct myself: I have a 5700 XT, not a 5600 XT. (I always get that mixed up, because I have a Ryzen 5600 CPU.) Given the below, it'd be interesting to know what kernel that's with. >> My initial guess is that this is either A: bad data / false positive >> (i.e., it's not really that bad under the hood), or B: a limitation of >> the Linux-side drivers. > > It's plausible that there's something in power management that > can and should be turned on, and isn't. https://bbs.archlinux.org/viewtopic.php?id=267503 (from just a few weeks ago) reports that this is fixed in kernel 5.12.14. Debian testing, being frozen, is still on 5.10.x: $ uname -r 5.10.0-8-amd64 The release is AFAIK less than two weeks away (barring delays), and after that it's likely that a newer version will pass into testing. Once a newer-enough version is available, it should resolve this. For additional reference, https://forums.lenovo.com/topic/view/27/5085655 has another report of the issue, and links to https://gitlab.freedesktop.org/drm/amd/-/issues/1632 as being an upstream(?) bug report which covers it. Not sure how directly applicable those are, but just in case... -- The Wanderer The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man. -- George Bernard Shaw
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