Hi all, sorry if I post this the wrong place.
I have a laptop running mint with qtile which sometimes freezes. To the point where nothing responds and I need to kill it. I’ve tried: sudo journalctl But I don’t get any information which helps me.
Can anyone help to debug it?


Since you specifically mention qtile you should undo your customizations and see if that fixes your problem?
If not, you should look at the journal after reboot:
journalctl -bBut you’ll need to filter it.
Try
journalctl -b | grep -v rtkit-daemon, which will remove the masses of entries you bemoaned in another comment (AFAICS all syslog entries should also be in the journal anyhow).Very important:
Please make note of when the problem happened, and if your journal entries even go that far in time.
I just got the following freeze that it recovered from by itself (rarely happens). After filtering the log a bit I get the following from around the time it happened.
Feb 07 00:00:58 tuxedo systemd[1]: Starting systemd-tmpfiles-clean.service - Cleanup of Temporary Directories... Feb 07 00:00:58 tuxedo systemd[1]: systemd-tmpfiles-clean.service: Deactivated successfully. Feb 07 00:00:58 tuxedo systemd[1]: Finished systemd-tmpfiles-clean.service - Cleanup of Temporary Directories. Feb 07 00:00:58 tuxedo systemd[1]: run-credentials-systemd\x2dtmpfiles\x2dclean.service.mount: Deactivated successfully. Feb 07 00:58:35 tuxedo kernel: [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx_0.0.0 timeout, signaled seq=780519, emitted seq=780521 Feb 07 00:58:35 tuxedo kernel: [drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information: process floorp pid 1548 thread floorp:cs0 pid 1606 Feb 07 00:58:35 tuxedo kernel: amdgpu 0000:65:00.0: amdgpu: GPU reset begin! Feb 07 00:58:35 tuxedo kernel: [drm:mes_v11_0_submit_pkt_and_poll_completion.constprop.0 [amdgpu]] *ERROR* MES failed to response msg=3 Feb 07 00:58:35 tuxedo kernel: [drm:amdgpu_mes_unmap_legacy_queue [amdgpu]] *ERROR* failed to unmap legacy queue Feb 07 00:58:35 tuxedo kernel: [drm:mes_v11_0_submit_pkt_and_poll_completion.constprop.0 [amdgpu]] *ERROR* MES failed to response msg=3 Feb 07 00:58:35 tuxedo kernel: [drm:amdgpu_mes_unmap_legacy_queue [amdgpu]] *ERROR* failed to unmap legacy queue Feb 07 00:58:36 tuxedo kernel: [drm:mes_v11_0_submit_pkt_and_poll_completion.constprop.0 [amdgpu]] *ERROR* MES failed to response msg=3 Feb 07 00:58:36 tuxedo kernel: [drm:amdgpu_mes_unmap_legacy_queue [amdgpu]] *ERROR* failed to unmap legacy queue Feb 07 00:58:36 tuxedo kernel: [drm:mes_v11_0_submit_pkt_and_poll_completion.constprop.0 [amdgpu]] *ERROR* MES failed to response msg=3 Feb 07 00:58:36 tuxedo kernel: [drm:amdgpu_mes_unmap_legacy_queue [amdgpu]] *ERROR* failed to unmap legacy queue Feb 07 00:58:36 tuxedo kernel: [drm:mes_v11_0_submit_pkt_and_poll_completion.constprop.0 [amdgpu]] *ERROR* MES failed to response msg=3 Feb 07 00:58:36 tuxedo kernel: [drm:amdgpu_mes_unmap_legacy_queue [amdgpu]] *ERROR* failed to unmap legacy queue Feb 07 00:58:36 tuxedo kernel: [drm:mes_v11_0_submit_pkt_and_poll_completion.constprop.0 [amdgpu]] *ERROR* MES failed to response msg=3 Feb 07 00:58:36 tuxedo kernel: [drm:amdgpu_mes_unmap_legacy_queue [amdgpu]] *ERROR* failed to unmap legacy queue Feb 07 00:58:36 tuxedo kernel: [drm:mes_v11_0_submit_pkt_and_poll_completion.constprop.0 [amdgpu]] *ERROR* MES failed to response msg=3 Feb 07 00:58:36 tuxedo kernel: [drm:amdgpu_mes_unmap_legacy_queue [amdgpu]] *ERROR* failed to unmap legacy queue Feb 07 00:58:36 tuxedo kernel: [drm:mes_v11_0_submit_pkt_and_poll_completion.constprop.0 [amdgpu]] *ERROR* MES failed to response msg=3 Feb 07 00:58:36 tuxedo kernel: [drm:amdgpu_mes_unmap_legacy_queue [amdgpu]] *ERROR* failed to unmap legacy queue Feb 07 00:58:36 tuxedo kernel: [drm:mes_v11_0_submit_pkt_and_poll_completion.constprop.0 [amdgpu]] *ERROR* MES failed to response msg=3 Feb 07 00:58:36 tuxedo kernel: [drm:amdgpu_mes_unmap_legacy_queue [amdgpu]] *ERROR* failed to unmap legacy queue Feb 07 00:58:37 tuxedo kernel: [drm:gfx_v11_0_hw_fini [amdgpu]] *ERROR* failed to halt cp gfx Feb 07 00:58:37 tuxedo kernel: amdgpu 0000:65:00.0: amdgpu: MODE2 reset Feb 07 00:58:37 tuxedo kernel: amdgpu 0000:65:00.0: amdgpu: GPU reset succeeded, trying to resume Feb 07 00:58:37 tuxedo kernel: [drm] PCIE GART of 512M enabled (table at 0x000000801FD00000). Feb 07 00:58:37 tuxedo kernel: amdgpu 0000:65:00.0: amdgpu: SMU is resuming... Feb 07 00:58:37 tuxedo kernel: amdgpu 0000:65:00.0: amdgpu: SMU is resumed successfully! Feb 07 00:58:37 tuxedo kernel: [drm] DMUB hardware initialized: version=0x08000500 Feb 07 00:58:37 tuxedo kernel: [drm] DPIA AUX failed on 0x600(1), error 7 Feb 07 00:58:37 tuxedo kernel: [drm] DPIA AUX failed on 0x600(1), error 7 ... Feb 07 00:58:37 tuxedo kernel: [drm] DPIA AUX failed on 0x600(1), error 7 Feb 07 00:58:37 tuxedo kernel: [drm] DPIA AUX failed on 0x600(1), error 7 Feb 07 00:58:37 tuxedo kernel: [drm] kiq ring mec 3 pipe 1 q 0 Feb 07 00:58:37 tuxedo kernel: [drm] VCN decode and encode initialized successfully(under DPG Mode). Feb 07 00:58:37 tuxedo kernel: amdgpu 0000:65:00.0: [drm:jpeg_v4_0_hw_init [amdgpu]] JPEG decode initialized successfully. Feb 07 00:58:37 tuxedo kernel: amdgpu 0000:65:00.0: amdgpu: ring gfx_0.0.0 uses VM inv eng 0 on hub 0 Feb 07 00:58:37 tuxedo kernel: amdgpu 0000:65:00.0: amdgpu: ring comp_1.0.0 uses VM inv eng 1 on hub 0 Feb 07 00:58:37 tuxedo kernel: amdgpu 0000:65:00.0: amdgpu: ring comp_1.1.0 uses VM inv eng 4 on hub 0 Feb 07 00:58:37 tuxedo kernel: amdgpu 0000:65:00.0: amdgpu: ring comp_1.2.0 uses VM inv eng 6 on hub 0 Feb 07 00:58:37 tuxedo kernel: amdgpu 0000:65:00.0: amdgpu: ring comp_1.3.0 uses VM inv eng 7 on hub 0 Feb 07 00:58:37 tuxedo kernel: amdgpu 0000:65:00.0: amdgpu: ring comp_1.0.1 uses VM inv eng 8 on hub 0 Feb 07 00:58:37 tuxedo kernel: amdgpu 0000:65:00.0: amdgpu: ring comp_1.1.1 uses VM inv eng 9 on hub 0 Feb 07 00:58:37 tuxedo kernel: amdgpu 0000:65:00.0: amdgpu: ring comp_1.2.1 uses VM inv eng 10 on hub 0 Feb 07 00:58:37 tuxedo kernel: amdgpu 0000:65:00.0: amdgpu: ring comp_1.3.1 uses VM inv eng 11 on hub 0 Feb 07 00:58:37 tuxedo kernel: amdgpu 0000:65:00.0: amdgpu: ring sdma0 uses VM inv eng 12 on hub 0 Feb 07 00:58:37 tuxedo kernel: amdgpu 0000:65:00.0: amdgpu: ring vcn_unified_0 uses VM inv eng 0 on hub 1 Feb 07 00:58:37 tuxedo kernel: amdgpu 0000:65:00.0: amdgpu: ring jpeg_dec uses VM inv eng 1 on hub 1 Feb 07 00:58:37 tuxedo kernel: amdgpu 0000:65:00.0: amdgpu: ring mes_kiq_3.1.0 uses VM inv eng 13 on hub 0 Feb 07 00:58:37 tuxedo kernel: amdgpu 0000:65:00.0: amdgpu: recover vram bo from shadow start Feb 07 00:58:37 tuxedo kernel: amdgpu 0000:65:00.0: amdgpu: recover vram bo from shadow done Feb 07 00:58:37 tuxedo kernel: [drm] ring gfx_32775.1.1 was added Feb 07 00:58:37 tuxedo kernel: [drm] ring compute_32775.2.2 was added Feb 07 00:58:37 tuxedo kernel: [drm] ring sdma_32775.3.3 was added Feb 07 00:58:37 tuxedo kernel: [drm] ring gfx_32775.1.1 test pass Feb 07 00:58:37 tuxedo kernel: [drm] ring gfx_32775.1.1 ib test pass Feb 07 00:58:37 tuxedo kernel: [drm] ring compute_32775.2.2 test pass Feb 07 00:58:37 tuxedo kernel: [drm] ring compute_32775.2.2 ib test pass Feb 07 00:58:37 tuxedo kernel: [drm] ring sdma_32775.3.3 test pass Feb 07 00:58:37 tuxedo kernel: [drm] ring sdma_32775.3.3 ib test pass Feb 07 00:58:37 tuxedo kernel: amdgpu 0000:65:00.0: amdgpu: GPU reset(2) succeeded! ``'Nice, that looks pretty obvious.
In addition to the other reply, you should search around your distro* having problems with (certain) AMD gpus; maybe all you need is a backported kernel.
* I don’t think you ever mentioned. If it’s Ubuntu-based, search for Ubuntu.
I use linux mint debian edition (LMDE)
Looks like the chipset/graphics driver is crashing. That can be because of the driver or the hardware.
It will be hard to diagnose, but you can search for the most detailed of those log lines together with your laptop model and see if that yields anything. There problem is that it’s never possible to know whether you have a software issue or a hardware issue that is exposed by particular software.
You can try installing a completely different os (i.e windows) to see if the same problem occurs - if it does you can be fairly sure it’s hardware.
Also, add
-rto show the log in reverse. If you want to look at previous boots other than the last you can specify like sojournalctl -b -2 -r