Hi guys! I have KDE Neon 6.2.3 running on my Surface Pro 7+, and up until now it’s been running rather smoothly, for years. But today I seem to be unable to fully boot anymore on normal mode. Linux will get stuck on the KDE spinning gear, with the gear frozen. And it becomes unresponsive, to open alternative consoles with control+alt+Fx, or even control+alt+del. The only thing that works is a force shutdown by holding the power button.
I tried with a previous kernel, with the same results (current is linux-image-6.10.10-surface-1, I have a generic 6.8.0-49, but it also freezes). I can boot in safe mode. It opens a different login screen, and after a failed attempt of opening lxde, it fails back to my usual KDE session, in safe graphics mode.
What can I test? How can I see what failed at boot?
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When you’ve booted in safe mode you can use journalctl to check what’s going on.
https://www.howtogeek.com/499623/how-to-use-journalctl-to-read-linux-system-logs/
https://www.man7.org/linux/man-pages/man1/journalctl.1.htmlThanks. I pulled the journalctl. This is…A bit extensive. EDIT: Well seems I only can see the KDE logo and a frozen gear, but according to systemctl the system is up and running, and the network connected? After 7 seconds frozen I give up once more and hold power button, since this is the only thing it seems to react to, and yet, even this gets logged onto journalctl.
You can use the -b flag to get a specific boot sequence:
https://www.howtogeek.com/499623/how-to-use-journalctl-to-read-linux-system-logs/#reviewing-boot-messagesSometimes it can help to filter by UID 1000:
https://www.howtogeek.com/499623/how-to-use-journalctl-to-read-linux-system-logs/#selecting-log-messages-by-data-fieldsOther than that you can try to filter by KDE services, but as I run GNOME I’m not very familiar with their names. In the KDE forum a developer recommends using this for another problem:
journalctl --user-unit=plasma-plasmashell.service --boot 0 --no-pager
https://discuss.kde.org/t/black-screen-after-login-how-to-troubleshoot-plasma-desktop/1615/4You need to specify the -b switch or you’re just looking at logs for the current session. Something like
journalctl -xe -b 1should do the trick.Oh, and before trying fixes - make a backup of your precious files when booted in safe mode.
About that - I´d like to run a backup that takes all apps and their configuration files (more than my own docs and files, which I already have properly backed in Seafile). What would you recommend just for the apps, their configs (and maybe the repos) etc?
I think you’re gonna find that a hard task. There isn’t one universal directory where apps saves their configs and bin files. You’ll find some in ~/.config
Dec 03 16:27:12 SurfaceNeon wpa_supplicant[1436]: wlp0s20f3: CTRL-EVENT-REGDOM-CHANGE init=DRIVER type=COUNTRY alpha2=HK Dec 03 16:27:12 SurfaceNeon NetworkManager[1428]: <info> [1733214432.6906] manager: startup complete Dec 03 16:27:12 SurfaceNeon systemd[1]: Finished NetworkManager-wait-online.service - Network Manager Wait Online. Dec 03 16:27:12 SurfaceNeon systemd[1]: Reached target network-online.target - Network is Online. Dec 03 16:27:12 SurfaceNeon systemd[1]: Started update-notifier-download.timer - Download data for packages that failed at package install time. Dec 03 16:27:12 SurfaceNeon systemd[1]: Started update-notifier-motd.timer - Check to see whether there is a new version of Ubuntu available. Dec 03 16:27:12 SurfaceNeon systemd[1]: Reached target timers.target - Timer Units. Dec 03 16:27:12 SurfaceNeon systemd[1]: Started cups-browsed.service - Make remote CUPS printers available locally. Dec 03 16:27:12 SurfaceNeon systemd[1]: Started deluged.service - Deluge Bittorrent Client Daemon. Dec 03 16:27:12 SurfaceNeon systemd[1]: Reached target multi-user.target - Multi-User System. Dec 03 16:27:12 SurfaceNeon systemd[1]: Reached target graphical.target - Graphical Interface. Dec 03 16:27:12 SurfaceNeon systemd[1]: Starting systemd-update-utmp-runlevel.service - Record Runlevel Change in UTMP... Dec 03 16:27:12 SurfaceNeon systemd[1]: systemd-update-utmp-runlevel.service: Deactivated successfully. Dec 03 16:27:12 SurfaceNeon systemd[1]: Finished systemd-update-utmp-runlevel.service - Record Runlevel Change in UTMP. Dec 03 16:27:12 SurfaceNeon systemd[1]: Startup finished in 4.484s (firmware) + 6.837s (loader) + 3.208s (kernel) + 11.614s (userspace) = 26.145s. Dec 03 16:27:12 SurfaceNeon systemd[1]: dmesg.service: Deactivated successfully. Dec 03 16:27:14 SurfaceNeon ModemManager[1454]: <msg> [base-manager] couldn't check support for device '/sys/devices/pci0000:00/0000:00:14.3': not supported by any plugin Dec 03 16:27:20 SurfaceNeon systemd[1]: NetworkManager-dispatcher.service: Deactivated successfully. Dec 03 16:27:20 SurfaceNeon systemd-logind[1351]: Power key pressed short. Dec 03 16:27:20 SurfaceNeon systemd-logind[1351]: Powering off... Dec 03 16:27:20 SurfaceNeon systemd-logind[1351]: System is powering down.All I can see in that is that your machine has an LTE SIM slot and that the LTE Modem isn’t supported. That shouldn’t stop you from booting.
Did you update anything recently? Especially graphics drivers?
I mean…I run the software discover update almost daily, whenever the icon pops in the tray…I don’t remember seeing anything scary on the update list, but I might have missed it.
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Hi, I am a KDE Neon user too. While I never had this specific problem, I had various severe bugs appear randomly after system updates. Usually they get fixed again in future updates. So check regularly for system updates to see if this gets fixed.
Additionally try switching global theme for example from Breeze Dark to Breeze Light. Sometimes the global theme gets corrupted.
