phayz's blog

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Troubleshooting GDM error message “Oh no! Something has gone wrong”

After a recent update of several packages I booted and instead of the GDM’s login screen it showed me a full-screen error message featuring a wonderfully smiling monitor: “Oh no! Something has gone wrong.” My first reaction was to panic but I soon calmed down. My problem was that I had never seen a fatal message like this from GDM and so didn’t know how to diagnose the problem. I Googled the title of the message and found that the following log file should contain any detailed error messages that GDM is reporting.

/var/log/gdm/:0-greeter.log

I successfully logged in at a console (i.e. non-GDM) by appending “3” to the GRUB kernel line (which specifies the run level to be booted into). I then looked at the above log file and, amongst the messages found that the file “/usr/share/gnome-shell/theme/gdm.css” was reported missing. I confirmed that that file was not there. I’m not sure what package is supposed to contain it but from doing a “pacman-g2 -Qo <file>” on other files in the same directory, it seems it should have come with the Frugalware GDM theme. For the moment I copied this file from another distribution, logged out and rebooted. This time GDM started as normal and I could log in.

Problem solved! \O/

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One response to “Troubleshooting GDM error message “Oh no! Something has gone wrong”

  1. Daniel (@devil505) 31 January 2012 at 5:42 pm

    It was my mistake, theme is fixed now sorry.

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