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Malvinka
Asked: 2022-04-27 08:23:05 +0800 CST

Unsuccessful upgrade from 20.04 to 21.10

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I have just upgraded from 20.04 to 21.10. It uninstalled a few programs (eg. Tex Maker), a few packages previously installed but what is the most annoying my 3rd monitor stopped working. I have one monitor added through HDMI, and another one via HDMI to QGeeM and that to USB-c. The first one works, and the second one stopped. It worked fine during the upgrade, then I was asked to reboot the system, I agreed and it stopped working at that moment. What should I do?

Edit: ubuntu-drivers devices does not produce any output and I have nothing in additional drivers in software and updates.

I feel like luck of some drivers might be a problem?

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upgrade

2 Answers

  1. I think upgrading from 20.04 to 21.10 is not a wise decision. you may want to upgrade direectly to 22.04 which is newest ubuntu LTS version using following command or using Software and Updates graphical tool.

    sudo do-release-upgrade -c -d
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  2. Re-installing display link drivers fixed it.

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