One of my monitors is 2560x1440, 60Hz capable but my Ubuntu 20.04 was only allowing me to set the maximum display resolution to 1920x1080. I followed the instructions in this post Unable to set my screen resolution higher (solution by AbdulR). Part of this involved me adding a new xrandr mode by creating a new shell file within /etc/profile.d/. Following a reset to my computer I can make it to the log in screen, but once I input my password I am stuck on a black screen on both my integrated display and external monitors. How can I revert these changes to get my display back.
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Boot from a Live Media and revert the changes you made.– DavidMar 16, 2022 at 12:54
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I just learned about switching to virtual terminal at the logon screen via Ctrl+Alt+F2 (still a new ubuntu user lol). I was able to login here and remove the suspect profile.d shell, restart, and my issue was resolved.– LaBeauxMar 16, 2022 at 13:42
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Might be a good idea to make that an answer using the answer your own question option bottom of your question.– DavidMar 16, 2022 at 14:13
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I just learned about switching to virtual terminal at the logon screen via Ctrl+Alt+F2 (still a new ubuntu user). I was able to login here and remove the suspect profile.d shell, restart, and my issue was resolved.