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Sometimes, when logging in after rebooting or when switching between users, after typing the password and confirming, I get stuck at a purple screen. Sometimes I can escape it with ctrl+alt+F3 followed by ctrl+alt+F2, and some other times those combinations don't even work.

I understand that this is a bug in Ubuntu, but I'd like to know if there is a way for a user to work around this bug in the meantime.

UPDATE. After installing the proprietary drivers of the NVIDIA graphic card it did not happened again! Hope this helps! :)

Qerubin
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  • Same problem on Dell Vostro 5568 – Håkon Hægland Apr 27 '18 at 11:44
  • I think this should be reported as a bug. I think we might close this, because bug reports are off-topic for Ask Ubuntu, even though 18.04 itself is now on-topic. (I mention that distinction because the same on-hold banner is shown whether a question is closed for being about a problem in a development release or closed for being effectively a bug report.) – Eliah Kagan Apr 27 '18 at 16:08
  • The bug report is here: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1766137 – Steve Apr 30 '18 at 05:10
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    After installing the proprietary drivers of the NVIDIA graphic card it did not happened again! I will add this to the main text and in the bug report. – Qerubin Apr 30 '18 at 10:51
  • Yeah this happened to me on Intel hd graphics 520. The problem is as of 17.10 and 18.04 Intel graphic update tool isn't available anymore, it has been discontinued, because as they claim drivers are now going to be pushed with Ubuntu. I had gpu hangs problem before on 4.13 kernel with my old laptop. this new issue again with graphics and with 4.15 kernel makes me sad and I wanna cry. – Luka May 02 '18 at 14:57
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    This question is now the first Google Hit when searching for "Ubuntu 18.04 purple screen" so I'll leave this as note: The workaround of ctrl+alt+F4 followed by ctrl+alt+F1 was what worked for me. – Étienne May 08 '18 at 17:50
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    Same issue here... but the drivers did not seem to help... and the laptop gets very hot once I install them – Delosari May 09 '18 at 12:33
  • Same problem except ctrl alt f4 f2 doesn't work. – SeanJ Mar 14 '19 at 17:43

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