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I installed a new theme onto Fedora / Gnome and when I restarted my computer, I receive the following error:
"There was an error loading the theme GDM-Debian. Failed to load image '/usr/share/gdm/themes/GDM-Debian/welldeb.png': Fatal error in PNG image file: incorrect data check."
Obviously the png file is corrupt, but how do I change my theme back to the original. All i can do is press "OK" and it gives me the same error. I tried pressing "Ctrl-Alt-Shift-Backspace" to back out of the GUI, but it keep restarting Gnome and I can't get to the text login.
Is there anyway I can reset the login screen / theme in Gnome? Where does Gnome hold the configuration files for this sort of thing?
you could try copying the contents of a "good" theme into the folder for the "bad" theme, after deleting the contents of the "bad" theme. Not sure, but it's likely worth a try. Perhaps backup the bad theme with a different name first, just in case...
Alright, well crtl-alt-F1 gets me to a standard text login... **whew** thanks. However, i tried renaming the bad file with the name of a good file and then backing up and deleting the bad file, but i get the same error. When I installed the new themes, the GUI for the graphical greeter wants you to install files in the form of filename.tar.gz. So i just renamed the .tar.gz file but that did not work. There must be something else i have to change inorder for GDM or whatever to look somewhere else for a login screen.
Also, how do you start a gnome xsession from the command line? I tried 'startx' but that didnt work. What is the command? If i could get into an xsession i could fix this. Thank you.
If I read correct, you said you renamed the bad one to a good one and deleted the bad one (after backup)...not quite what I was suggesting...
Try copying the folder (and all contents) of a good theme to the same directory but with the EXACT name of the folder that contained the bad theme. For instance, if you have a good theme called "Gorilla", then at the command line type:
ok... jeff... I actually did what you said, but i copied to the wrong location on my first attempt. so i did it again like you said above...
Then i restarted. Came to the same error message.... did ctrl-alt-F1 to get to text login... logged in as root and tried startx again. This time, however, startx worked just fine, and i have no idea why :/ ... but thigs are up and running again. Thnaks for your help!!!