I've made the same tests with mainline kernel '5.12.4-051204-generic #202105140931 SMP Fri May 14 09:35:44 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux' and the results are the same, i.e. sensors command stopping when reaching amd section and this error message showing in dmesg:
[ 65.636330] [drm] PCIE GART of 256M enabled (table at 0x000000F400000000). [ 67.104101] [drm:dce110_edp_wait_for_hpd_ready [amdgpu]] *ERROR* dce110_edp_wait_for_hpd_ready: wait timed out! [ 67.704167] [drm:dce110_edp_wait_for_hpd_ready [amdgpu]] *ERROR* dce110_edp_wait_for_hpd_ready: wait timed out! [ 67.735924] [drm] UVD and UVD ENC initialized successfully. [ 67.845908] [drm] VCE initialized successfully. [ 67.850738] amdgpu 0000:01:00.0: [drm] Cannot find any crtc or sizes [ 68.144823] drm_dp_i2c_do_msg: 2 callbacks suppressed [ 68.241327] [drm:lspcon_init [i915]] *ERROR* Failed to probe lspcon [ 68.241388] [drm:lspcon_resume [i915]] *ERROR* LSPCON init failed on port D [ 68.893269] [drm:lspcon_init [i915]] *ERROR* Failed to probe lspcon [ 68.893321] [drm:lspcon_resume [i915]] *ERROR* LSPCON init failed on port D So the problem is not Ubuntu related. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-amdgpu in Ubuntu. https://bugs.launchpad.net/bugs/1910562 Title: Fans switching on and off every 10 seconds after update to kernel 5.8.0-34 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1910562/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
