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 $ sensors (...) amdgpu-pci-0900 Adapter: PCI adapter vddgfx: 1.14 V fan1: 1098 RPM (min = 0 RPM, max = 3000 RPM) edge: +51.0°C (crit = +100.0°C, hyst = -273.1°C) (emerg = +105.0°C) junction: +55.0°C (crit = +110.0°C, hyst = -273.1°C) (emerg = +115.0°C) mem: +56.0°C (crit = +100.0°C, hyst = -273.1°C) (emerg = +105.0°C) power1: 74.00 W (cap = 272.00 W) gpu-mon (from rickslab-gpu-utils) ┌─────────────┬────────────────────┐ │Card # │card0 │ ├─────────────┼────────────────────┤ │Model │ Navi 21 RX │ │GPU Load % │99 │ │Mem Load % │0 │ │VRAM Usage % │4.839 │ │GTT Usage % │0.802 │ │Power (W) │75.0 │ │Power Cap (W)│272.0 │ │Energy (kWh) │0.0 │ │T (C) │53.0 │ │VddGFX (mV) │1143 │ │Fan Spd (%) │0 │ │Sclk (MHz) │2470 │ │Sclk Pstate │1 │ │Mclk (MHz) │1000 │ │Mclk Pstate │3 │ │Perf Mode │0-BOOTUP_DEFAULT │ └─────────────┴────────────────────┘ This is my hardware: $ inxi -G Graphics: Device-1: Advanced Micro Devices [AMD/ATI] Navi 21 [Radeon RX 6800/6800 XT / 6900 XT] driver: amdgpu v: kernel Display: x11 server: X.Org 1.20.11 driver: loaded: amdgpu,ati unloaded: fbdev,modesetting,radeon,vesa resolution: 1: 1920x1200~60Hz 2: 3840x2160~60Hz OpenGL: renderer: AMD SIENNA_CICHLID (DRM 3.40.0 5.10.0-8-amd64 LLVM 11.0.1) v: 4.6 Mesa 20.3.5 All packages are default from Bullseye (apart from rickslab-gpu-utils package which I installed to debug this issue), fresh install from the scratch a week ago, all graphics and games works perfectly. It's just that 100% GPU usage when idle. 74 Watts used when idle! I did further testing and found out this: Windows 10 one monitor: 9-11 W, GPU clock 0-10 MHz, Memory Clock 40-100 MHz two monitors: 34 W, GPU clock 0-10 MHz, Memory Clock 2000 MHz Debian 11 one monitor: 74 W, GPU clock 2475 MHz, Memory Clock 2000 MHz two monitors: 74 W, GPU clock 2475 MHz, Memory Clock 2000 MHz Debian results are very bad! On Windows 10, high memory clock with two monitors it's a known issue, but on Debian also 100% GPU usage and 2.5GHz GPU core clock is a big problem. Any tips appreciated. -- With kindest regards, piorunz. ⢀⣴⠾⠻⢶⣦⠀ ⣾⠁⢠⠒⠀⣿⡁ Debian - The universal operating system ⢿⡄⠘⠷⠚⠋⠀ https://www.debian.org ⠈⠳⣄⠀⠀⠀⠀