Was working absolutely fine last night but today upon starting up I get a message saying plasma has crashed and then I can’t do anything! I have automatic login enabled. I can’t think of what I did to cause this, perhaps an update was installed.
Press Ctrl+Alt+Backspace twice to get back to the login screen.
You should still be able to run applications via KRunner though (Alt+F2 or Alt+Space).
Maybe try to run “plasmashell”, though it probably will crash again.
To further investigate:
Try to run “plasmashell” in a konsole, or post the backtrace (developer information in kcrash).
What updates did you install? There haven’t been any KDE updates recently.
Does it work on a fresh user account? (use e.g. YaST->Security and Users->User and Group Management to create one)
May be a graphics driver problem though, so what card/driver are you using?
If in doubt, post the file /var/log/Xorg.0.log.
If I try to do Ctrl+Alt+Backspace twice the screen goes black and no login screen is present!
So even the login screen doesn’t work.
Which means the problem lies on a deeper level.
Can you login to text mode? (press Ctrl+Alt+F1)
Probably the simple xdm would still work, so try setting DISPLAYMANAGER=“xdm” in /etc/sysconfig/displaymanager.
You could also try to set DEFAULT_WM=“icewm” in /etc/sysconfig/windowmanager, this should give you a simple graphical session at least.
The question is, did you change anything?
Such a thing should not happen overnight (unless your hardware broke).
Maybe your system partition is full?
Try to delete some old snapshots with “yast2 snapper” (should work in text mode too).
You might try to boot a previous snapshot from the boot menu though to “fix” your system.
I do remember thinking my root partition was getting full, although I’m not sure why! If I try to run a bootable read-only snapshot it says
"error: can’t find command “true”
I tried booting again and a different error came up…
basically saying /tmp is out of disk space. How do I go about freeing up some space, when I can’t boot into it?
Thanks! Seems like it could be quite a simple fix I hope. Maybe just using a partition manager some how? I can boot into windows so maybe worth looking in there.
I was downloading some videos from youtube which were many GB, and the downloader I use initially puts them in /tmp I think before converting them. This may have been why!
Well, this would sound like a plausible cause, so I’d delete them as a first try in solving the problem.
If you cannot boot, you can do that from a LiveCD (Windows won’t be able to access the Linux partition without extra software).
But you should still be able to login to text mode.
So press Ctrl+Alt+F1, a text mode login prompt should appear then.
Type “root” as username, and the root password, then run:
rm -r /tmp/*
This deletes anything in /tmp/, and if that was the reason the system should boot fine afterwards.
Hint: you can reboot from text mode by typing “reboot”…
Or just press the power button, that should shutdown the system.
You’re a star!! I’m back in!!Is there a way of making sure this doesn’t happen again? I use “download helper” to convert youtube videos, and it seems to automatically go to /tmp before converting and then saving to my original chosen destination.
I’ve found my root partition (20gb) only has 2.6gb free. How can I safely clean some of it up? Is it worth trying to use a partitioner to make it a larger size?
May be a problem is it BTRFS or ext4?? If BTRFS then delete snapshots and turn off snapper. 20 Gig is too small for snapper.
You can’t just make it bigger without giving it space to expand into so that generally means resizing and moving other partitions. Don’t do this unless you fully understand the steps and have a complete backup of all on the drive. The details depends on exactly what you have and how partitioned.
Clean out any application you may have installed and don’t use/need.
Then you can uninstall snapper again to prevent it from creating new snapshots.
But you probably should lock/taboo it too, to prevent it getting installed again.
Ok, I reinstaled snapper, then opened it via the GUI and manually deleted the snapshots (it wouldn’t delete the first root snapshot, but all the others have been removed) and I’ve now uninstalled it. Free disc space after clearing /tmp was 2.4GB, and now having removed the snapshots it’s just shy of 8GB!