I installed LinuxMint 20 when it came out, and installed the latest updates when they were available. And everything worked fine, until about 2 months ago. After installing an update my login feature refused to work properly. This was after Russia invaded the Ukraine. And I thought, "Did Russia hack LinuxMint 20?" It seemed possible, after all, it is based upon a popular flavor of Linux used around the world. So what did was break out a copy of LinuxMint 17.3, reinstalled it, then downloaded LinuxMint 21, and everything is back to normal. In fact, I would say that my computer is running better now. On Sunday, May 15, 2022, 05:38:10 PM MST, Aaron Birenboim <aaron@boim.com> wrote: Still doing it. USB has power. Keyboard caps-lock light responds. Machine not responding to ping. I frittered about, then rebooted. It seems to have been "up", but screen was blank, and ethernet not responding. Boring review of logs follows: ******************** Logs show a loop like: May 15 16:30:01 grackle CRON[38291]: pam_unix(cron:session): session closed for user root May 15 16:34:53 grackle systemd[1]: Started Run anacron jobs. May 15 16:34:53 grackle anacron[38349]: Anacron 2.3 started on 2022-05-15 May 15 16:34:53 grackle anacron[38349]: Normal exit (0 jobs run) May 15 16:34:53 grackle systemd[1]: anacron.service: Succeeded. May 15 16:44:12 grackle pulseaudio[1554]: Failed to create sink input: sink is suspended. May 15 17:00:01 grackle CRON[38647]: pam_unix(cron:session): session opened for user root by (uid=0) May 15 17:00:01 grackle CRON[38648]: (root) CMD (timeshift --check --scripted) May 15 17:00:01 grackle crontab[38682]: (root) LIST (root) May 15 17:00:01 grackle crontab[38683]: (root) LIST (root) May 15 17:00:01 grackle CRON[38647]: pam_unix(cron:session): session closed for user root May 15 17:17:01 grackle CRON[38883]: pam_unix(cron:session): session opened for user root by (uid=0) ... May 15 18:00:01 grackle crontab[40068]: (root) LIST (root) May 15 18:00:01 grackle CRON[40032]: pam_unix(cron:session): session closed for user root May 15 18:01:31 grackle kernel: usb 5-1: USB disconnect, device number 6 May 15 18:01:32 grackle kernel: usb 5-1: new full-speed USB device number 7 using ohci-pci May 15 18:01:32 grackle kernel: usb 5-1: New USB device found, idVendor=2e8a, idProduct=0005, bcdDevice= 1.00 May 15 18:01:32 grackle kernel: usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 May 15 18:01:32 grackle kernel: usb 5-1: Product: Board in FS mode May 15 18:01:32 grackle kernel: usb 5-1: Manufacturer: MicroPython May 15 18:01:32 grackle kernel: usb 5-1: SerialNumber: e4673c4687613f2b May 15 18:01:32 grackle kernel: cdc_acm 5-1:1.0: ttyACM0: USB ACM device May 15 18:01:32 grackle mtp-probe[40092]: checking bus 5, device 7: "/sys/devices/pci0000:00/0000:00:13.0/usb5/5-1" May 15 18:01:32 grackle mtp-probe[40092]: bus: 5, device: 7 was not an MTP device May 15 18:01:32 grackle mtp-probe[40095]: checking bus 5, device 7: "/sys/devices/pci0000:00/0000:00:13.0/usb5/5-1" May 15 18:01:32 grackle mtp-probe[40095]: bus: 5, device: 7 was not an MTP device May 15 18:02:25 grackle kernel: nvidia-modeset: ERROR: GPU:0: Failed to allocate channel for composition pipeline May 15 18:02:25 grackle kernel: nvidia-modeset: ERROR: GPU:0: Failed to allocate channel for composition pipeline May 15 18:02:33 grackle lightdm[11380]: pam_unix(lightdm:auth): authentication failure; logname= uid=0 euid=0 tty=:1 ruser= rhost= user=aaron May 15 18:02:34 grackle lightdm[40125]: pam_succeed_if(lightdm:auth): requirement "user ingroup nopasswdlogin" not met by user "aaron" ***** perhaps pressing keys did a login that never displayed? I think I checked ping AFTER that Then I plugged keyboard to another USB port: ************* May 15 18:03:44 grackle kernel: usb 1-3.3: USB disconnect, device number 7 May 15 18:03:44 grackle acpid[980]: input device has been disconnected, fd 19 May 15 18:03:45 grackle acpid[980]: input device has been disconnected, fd 20 May 15 18:03:45 grackle acpid[980]: input device has been disconnected, fd 21 May 15 18:04:01 grackle kernel: usb 1-4: USB disconnect, device number 4 May 15 18:04:01 grackle kernel: usb 1-4.1: USB disconnect, device number 6 May 15 18:04:01 grackle kernel: usb 1-4.1.1: USB disconnect, device number 8 May 15 18:04:01 grackle kernel: usb 1-4.1.2: USB disconnect, device number 10 May 15 18:04:01 grackle kernel: usb 1-4.1.3: USB disconnect, device number 11 May 15 18:04:01 grackle systemd[1]: Starting Load/Save RF Kill Switch Status... May 15 18:04:01 grackle bluetoothd[986]: Endpoint unregistered: sender=:1.64 path=/MediaEndpoint/A2DPSink/sbc May 15 18:04:01 grackle bluetoothd[986]: Endpoint unregistered: sender=:1.64 path=/MediaEndpoint/A2DPSource/sbc May 15 18:04:01 grackle bluetoothd[986]: Endpoint unregistered: sender=:1.120 path=/MediaEndpoint/A2DPSink/sbc May 15 18:04:01 grackle bluetoothd[986]: Endpoint unregistered: sender=:1.120 path=/MediaEndpoint/A2DPSource/sbc May 15 18:04:01 grackle systemd[1]: Stopped target Bluetooth. May 15 18:04:01 grackle systemd[1]: Started Load/Save RF Kill Switch Status. May 15 18:04:02 grackle kernel: usb 5-1: USB disconnect, device number 7 May 15 18:04:02 grackle kernel: usb 1-4: new high-speed USB device number 14 using ehci-pci May 15 18:04:02 grackle kernel: usb 1-4: New USB device found, idVendor=0424, idProduct=2504, bcdDevice= 0.01 May 15 18:04:02 grackle kernel: usb 1-4: New USB device strings: Mfr=0, Product=0, SerialNumber=0 May 15 18:04:02 grackle kernel: hub 1-4:1.0: USB hub found May 15 18:04:02 grackle kernel: usb 1-4: USB disconnect, device number 14 May 15 18:04:02 grackle kernel: usb 1-4: new high-speed USB device number 15 using ehci-pci May 15 18:04:02 grackle kernel: usb 1-4: device descriptor read/64, error -71 May 15 18:04:03 grackle kernel: usb 5-1: new full-speed USB device number 8 using ohci-pci May 15 18:04:03 grackle kernel: usb 5-1: New USB device found, idVendor=2e8a, idProduct=0005, bcdDevice= 1.00 May 15 18:04:03 grackle kernel: usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 May 15 18:04:03 grackle kernel: usb 5-1: Product: Board in FS mode May 15 18:04:03 grackle kernel: usb 5-1: Manufacturer: MicroPython May 15 18:04:03 grackle kernel: usb 5-1: SerialNumber: e4673c4687613f2b May 15 18:04:03 grackle kernel: usb 1-4: device descriptor read/64, error -71 May 15 18:04:03 grackle kernel: cdc_acm 5-1:1.0: ttyACM0: USB ACM device May 15 18:04:03 grackle mtp-probe[40178]: checking bus 5, device 8: "/sys/devices/pci0000:00/0000:00:13.0/usb5/5-1" May 15 18:04:03 grackle mtp-probe[40178]: bus: 5, device: 8 was not an MTP device May 15 18:04:03 grackle mtp-probe[40181]: checking bus 5, device 8: "/sys/devices/pci0000:00/0000:00:13.0/usb5/5-1" May 15 18:04:03 grackle mtp-probe[40181]: bus: 5, device: 8 was not an MTP device May 15 18:04:03 grackle kernel: usb 1-4: new high-speed USB device number 16 using ehci-pci May 15 18:04:04 grackle kernel: usb 1-4: device descriptor read/64, error -71 May 15 18:04:04 grackle kernel: usb 1-4: device descriptor read/64, error -71 May 15 18:04:04 grackle kernel: usb usb1-port4: attempt power cycle May 15 18:04:05 grackle kernel: usb 1-4: new high-speed USB device number 17 using ehci-pci ... May 15 18:04:16 grackle bluetoothd[986]: Endpoint registered: sender=:1.64 path=/MediaEndpoint/A2DPSink/sbc May 15 18:04:16 grackle bluetoothd[986]: Endpoint registered: sender=:1.64 path=/MediaEndpoint/A2DPSource/sbc May 15 18:04:16 grackle bluetoothd[986]: Endpoint registered: sender=:1.120 path=/MediaEndpoint/A2DPSource/sbc May 15 18:04:16 grackle kernel: scsi 5:0:0:0: Direct-Access Generic Flash HS-CF 4.49 PQ: 0 ANSI: 0 May 15 18:04:16 grackle kernel: scsi 5:0:0:1: Direct-Access Generic Flash HS-COMBO 4.49 PQ: 0 ANSI: 0 May 15 18:04:16 grackle kernel: sd 5:0:0:0: Attached scsi generic sg3 type 0 May 15 18:04:16 grackle kernel: sd 5:0:0:1: Attached scsi generic sg4 type 0 May 15 18:04:16 grackle kernel: sd 5:0:0:0: [sdd] Attached SCSI removable disk May 15 18:04:16 grackle kernel: sd 5:0:0:1: [sde] Attached SCSI removable disk May 15 18:04:19 grackle lightdm[40125]: pam_unix(lightdm:auth): authentication failure; logname= uid=0 euid=0 tty=:1 ruser= rhost= user=aaron May 15 18:04:21 grackle systemd[1]: systemd-rfkill.service: Succeeded. May 15 18:04:21 grackle lightdm[40577]: pam_succeed_if(lightdm:auth): requirement "user ingroup nopasswdlogin" not met by user "aaron" May 15 18:04:22 grackle lightdm[40577]: pam_unix(lightdm:auth): authentication failure; logname= uid=0 euid=0 tty=:1 ruser= rhost= user=aaron May 15 18:04:24 grackle lightdm[40580]: pam_succeed_if(lightdm:auth): requirement "user ingroup nopasswdlogin" not met by user "aaron" ******************* then I gave up and hit power button, and it rebooted: ********************** May 15 18:04:33 grackle systemd-logind[1045]: Power key pressed. May 15 18:04:33 grackle systemd-logind[1045]: Powering Off... May 15 18:04:33 grackle systemd-logind[1045]: System is powering down. On 5/14/22 11:27, Robert Citek wrote: Hello Aaron, Here's a post that describes a similar issue where the culprit is suspected to be heat: https://forums.linuxmint.com/viewtopic.php?t=330043 One poster mentioned that Mint tends to run "a little hot." Two commands referenced are these: # info about your system inxi -Fxms # display system logs journalctl Good luck and let us know how it goes. Regards, - Robert On Sat, May 14, 2022 at 10:10 AM Aaron Birenboim <aaron@boim.com> wrote: I have a new, clean, Mint 20 install which is shutting down after long periods of non-use... like 6-10 hours. I have tried many things to disable this. I have peeked at logs, but nothing is jumping out at me. How can I find out why the machine is shutting down? Sure, a wake-on-lan/ssh would be fine for this machine, but I'll worry about that after I can figure out how to keep it up. I had it running 24/7, months at a time under Mint 18. aTdHvAaNnKcSe, aaron _______________________________________________ nmglug mailing list nmglug@lists.nmglug.org http://lists.nmglug.org/listinfo.cgi/nmglug-nmglug.org _______________________________________________ nmglug mailing list nmglug@lists.nmglug.org http://lists.nmglug.org/listinfo.cgi/nmglug-nmglug.org _______________________________________________ nmglug mailing list nmglug@lists.nmglug.org http://lists.nmglug.org/listinfo.cgi/nmglug-nmglug.org