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Today I updated ubuntu (usual update, that shows authomaticaly every few days) and after restarting, I got weird resolution (smaller screen), no internet connection, almost no options in settings menu,…

I don't know what happened an how to get things back?

Maybe this was somehow connected: after update and befor restarting I changed kernel from 4.15.0-43-generic to 4.15.0-45-generic (see this thread: Minecraft crashes, losing connection )

UPDATE: it also doesn't wake up from hybernation

Ifconfig -a gives me just lo interface. I don't get my ethernet

  • We don't know either. – Pilot6 Mar 2 at 12:07
  • @Pilot6 Did you also face the same? Should we not update as of now? – Varun Chhangani Mar 2 at 12:10
  • No, I didn't face the same. – Pilot6 Mar 2 at 12:11
  • What happens if you boot back to an older kernel? – heynnema Mar 2 at 14:12
  • @heynnema: How to boot back to old kernel without internet access? I have RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller, which is not seen (Ifconfig -a). I don't seem to have instaled driver r8168, nor r8169. – Mersault Mar 4 at 13:56
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From the comments...

When booting from -45 kernel, symptoms are "weird resolution (smaller screen), no internet connection, almost no options in settings menu, and hibernation problems".

Booting to the prior -44 kernel and all of these symptoms were cured. For the short term, continue to boot to this kernel to maintain full system operation. (note: -44 kernel may have an issue with console ttys).

Monitor Software Updater for -46 or newer kernel updates, then boot to them and see if symptoms are also gone.

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