My systemd logs are filled with amdgpu logs like these
Apr 25 09:36:43 zeta kernel: amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:125]
Apr 25 09:36:44 zeta kernel: amdgpu 0000:0b:00.0: [drm:dc_allow_idle_optimizations_internal [amdgpu]] dc_allow_idle_optimizations_internal: allow_idle=1
HardMinUClk_Khz=0 HardMinDramclk_Khz=0
Pipe_0=0 Pipe_1=0 Pipe_2=0 Pipe_3=0 Pipe_4=0 Pipe_5=0 (caller=amdgpu_dm_crtc_vblank_control_worker)
Apr 25 09:36:44 zeta kernel: amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:122]
Apr 25 09:36:44 zeta kernel: amdgpu 0000:0b:00.0: [drm:dc_allow_idle_optimizations_internal [amdgpu]] dc_allow_idle_optimizations_internal: allow_idle=1
HardMinUClk_Khz=0 HardMinDramclk_Khz=0
Pipe_0=0 Pipe_1=0 Pipe_2=0 Pipe_3=0 Pipe_4=0 Pipe_5=0 (caller=amdgpu_dm_crtc_vblank_control_worker)
Apr 25 09:36:45 zeta kernel: amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:125]
Apr 25 09:36:45 zeta kernel: amdgpu 0000:0b:00.0: [drm:dc_allow_idle_optimizations_internal [amdgpu]] dc_allow_idle_optimizations_internal: allow_idle=1
HardMinUClk_Khz=0 HardMinDramclk_Khz=0
Pipe_0=0 Pipe_1=0 Pipe_2=0 Pipe_3=0 Pipe_4=0 Pipe_5=0 (caller=amdgpu_dm_crtc_vblank_control_worker)
Apr 25 09:36:45 zeta kernel: amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:122]
Apr 25 09:36:45 zeta kernel: amdgpu 0000:0b:00.0: [drm:dc_allow_idle_optimizations_internal [amdgpu]] dc_allow_idle_optimizations_internal: allow_idle=1
HardMinUClk_Khz=0 HardMinDramclk_Khz=0
Pipe_0=0 Pipe_1=0 Pipe_2=0 Pipe_3=0 Pipe_4=0 Pipe_5=0 (caller=amdgpu_dm_crtc_vblank_control_worker)
Apr 25 09:36:45 zeta kernel: amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:125]
Apr 25 09:36:45 zeta kernel: amdgpu 0000:0b:00.0: [drm:dc_allow_idle_optimizations_internal [amdgpu]] dc_allow_idle_optimizations_internal: allow_idle=1
HardMinUClk_Khz=0 HardMinDramclk_Khz=0
Pipe_0=0 Pipe_1=0 Pipe_2=0 Pipe_3=0 Pipe_4=0 Pipe_5=0 (caller=amdgpu_dm_crtc_vblank_control_worker)
Apr 25 09:36:45 zeta kernel: amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:122]
Apr 25 09:36:45 zeta kernel: amdgpu 0000:0b:00.0: [drm:dc_allow_idle_optimizations_internal [amdgpu]] dc_allow_idle_optimizations_internal: allow_idle=1
HardMinUClk_Khz=0 HardMinDramclk_Khz=0
Pipe_0=0 Pipe_1=0 Pipe_2=0 Pipe_3=0 Pipe_4=0 Pipe_5=0 (caller=amdgpu_dm_crtc_vblank_control_worker)
Apr 25 09:36:45 zeta kernel: amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:125]
Apr 25 09:36:45 zeta kernel: amdgpu 0000:0b:00.0: [drm:dc_allow_idle_optimizations_internal [amdgpu]] dc_allow_idle_optimizations_internal: allow_idle=1
HardMinUClk_Khz=0 HardMinDramclk_Khz=0
Pipe_0=0 Pipe_1=0 Pipe_2=0 Pipe_3=0 Pipe_4=0 Pipe_5=0 (caller=amdgpu_dm_crtc_vblank_control_worker)
Apr 25 09:36:45 zeta kernel: amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:122]
Apr 25 09:36:45 zeta kernel: amdgpu 0000:0b:00.0: [drm:dc_allow_idle_optimizations_internal [amdgpu]] dc_allow_idle_optimizations_internal: allow_idle=1
HardMinUClk_Khz=0 HardMinDramclk_Khz=0
Pipe_0=0 Pipe_1=0 Pipe_2=0 Pipe_3=0 Pipe_4=0 Pipe_5=0 (caller=amdgpu_dm_crtc_vblank_control_worker)
Apr 25 09:36:45 zeta kernel: amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:125]
Apr 25 09:36:45 zeta kernel: amdgpu 0000:0b:00.0: [drm:dc_allow_idle_optimizations_internal [amdgpu]] dc_allow_idle_optimizations_internal: allow_idle=1
HardMinUClk_Khz=0 HardMinDramclk_Khz=0
Googling didn’t yield any usable info. What do these logs mean? Is this something I should fix? I can’t use journalctl to read other logs because its full of these messages.
I am on
# uname -a
Linux zeta 6.14.2 #1-NixOS SMP PREEMPT_DYNAMIC Thu Apr 10 12:44:49 UTC 2025 x86_64 GNU/Linux
and using the integrated GPU (RDNA 2) of a AMD Ryzen 9 9900X.
dmesg excerpt
[98513.412119] amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:123]
[98513.428588] amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:122]
[98513.445161] amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:123]
[98513.462288] amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:122]
[98513.479358] amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:123]
[98513.495166] amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:122]
[98513.511803] amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:123]
[98513.528504] amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:122]
[98513.545192] amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:123]
[98513.561864] amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:122]
[98513.579172] amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:123]
[98513.595210] amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:122]
[98513.611889] amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:123]
[98513.628565] amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:122]
[98513.662866] amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:123]
[98513.703889] amdgpu 0000:0b:00.0: [drm:dc_allow_idle_optimizations_internal [amdgpu]] dc_allow_idle_optimizations_internal: allow_idle=1
HardMinUClk_Khz=0 HardMinDramclk_Khz=0
Pipe_0=0 Pipe_1=0 Pipe_2=0 Pipe_3=0 Pipe_4=0 Pipe_5=0 (caller=amdgpu_dm_crtc_vblank_control_worker)
[98513.712900] amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:122]
[98513.752892] amdgpu 0000:0b:00.0: [drm:dc_allow_idle_optimizations_internal [amdgpu]] dc_allow_idle_optimizations_internal: allow_idle=1
HardMinUClk_Khz=0 HardMinDramclk_Khz=0
Pipe_0=0 Pipe_1=0 Pipe_2=0 Pipe_3=0 Pipe_4=0 Pipe_5=0 (caller=amdgpu_dm_crtc_vblank_control_worker)
[98513.795861] amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:123]
[98513.836891] amdgpu 0000:0b:00.0: [drm:dc_allow_idle_optimizations_internal [amdgpu]] dc_allow_idle_optimizations_internal: allow_idle=1
HardMinUClk_Khz=0 HardMinDramclk_Khz=0
Pipe_0=0 Pipe_1=0 Pipe_2=0 Pipe_3=0 Pipe_4=0 Pipe_5=0 (caller=amdgpu_dm_crtc_vblank_control_worker)
[98513.846296] amdgpu 0000:0b:00.0: [drm:drm_mode_addfb2] [FB:122]
[98513.886903] amdgpu 0000:0b:00.0: [drm:dc_allow_idle_optimizations_internal [amdgpu]] dc_allow_idle_optimizations_internal: allow_idle=1
HardMinUClk_Khz=0 HardMinDramclk_Khz=0
Pipe_0=0 Pipe_1=0 Pipe_2=0 Pipe_3=0 Pipe_4=0 Pipe_5=0 (caller=amdgpu_dm_crtc_vblank_control_worker)