Tablet mode works on live USB but not after installation (25.10 on Framework12)

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1

This is a strange one! I have here my brand new Framework12 convertible laptop. Under 25.04 tablet mode worked perfectly. (Well, I had to tweak the iio-sensor-proxy config as the Framework team describe here). But then everything worked great. Folding back the screen and orientating the screen in portrait mode automatically rotated the screen and when I interacted with a text input the on-screen-keyboard popped up.

When booting off the Ubuntu 25.10 live USB tablet mode just works, no workaround required. How lovely, I thought! When booting into the installed system however, it doesn’t work any more. And applying the iio-sensor-proxy fix doesn’t change anything either.

Other Framework12 users have noticed this as well, as you can see here.

Any ideas what the issue could be? Or where I could start troubleshooting?

2

My only suggestion is to generate a sorted package listing for the two modes,

  • Live,       and
  • Installed

then compare the two listings to see where there are package discrepancies.

If no glaring discrepancies seem jump out and explain the behaviour differences (there will be some no-impact discrepancies), then it would seem to be a matter of default configurations for each of the two modes. Again, you would have to compare those key configuration files for each.

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dpkg-query -W -f '${binary:Package}\n'
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