Hello. When I try to open a psd file in GIMP, the program freezes and closes. My system is a KDE plasma 5.24.3
Start the program from a terminal.
There will probably be something written to it re the cause.
No, that doesn’t work either.
Since it works just fine for me - with sample .psd files downloaded from the net, because I do not have any of my own
I can only suggest that you try again with:
gimp --verbose
in a terminal
and see whether the output might reveal something
It should start up - and then only crash/close/whatever once you open your image.
I tried some of these:
and some from here:
worked all just fine …
I have a suggestion as to why this doesn’t work: I have an Nvidia graphics card and only open source drivers are installed. Can GIMP not work because of this?
That is (just) a guess.
Based perhaps on the various problems with Nvidia cards reported here.
(this is a forum where problems, rather than successes, are reported …)
But, really:
if it works otherwise for anything else, I see no reason that your issue is connected to that fact.
… yes, it could always be - nothing is impossible 
but it is highly unlikely
Let the data speak - if there is any to have.
Let’s try to gather and work on facts … not guesses
How are any of these files (my links) working for you?
GIMP --verbose only says this:
(file-psd:1995): LibGimpBase-WARNING **: 18:06:03.980: file-psd: gimp_wire_read(): error
(script-fu:1929): LibGimpBase-WARNING **: 18:06:03.982: script-fu: gimp_wire_read(): error
zsh: killed gimp --verbose
in
~/.config/GIMP/_version_number_
there is a directory called:
CrashLog
perhaps it holds something useful?
For lack of knowledge
I’d try
to back up (in case it may contain anything valuable)
and then remove
~/.config/GIMP
and everything in it
… to start anew …
Are you sure that your system is fully updated?
If not - that would be the first thing to ensure.
That’s the whole point - the CrashLog folder is empty. GIMP just won’t open the file. I can’t understand this
And yes, system is fully updated
Where those errors when you tried to open up the .psd files linked to by @Nachlese?
Details are important.
this!
are any non-standard plugins installed?
I really do not know much about gimp in particular - but this could be one reason
It could also be rectified (probably) by removing ~/.config/GIMP
… thereby losing those …
Based on an old Reddit post, it might be related to the GTK theme you are using.
Try a different theme, and see if it helps:
System Settings → Appearance → Application Style → Configure GNOME/GTK Application Style
But first, try @Nachlese’s suggestion of a new, fresh GIMP profile config folder.
As this could be script/plugin related.