I installed Retrowave on my Toshiba tablet. It formerly had Win 10 and I wiped the HD and reformatted when installing Elive Retrowave. So far it is going surpisingly well. My issue is there is no sound. It does not seem to recognize the soundcard. I ran sudo apt upgrade to see if it would pick up drivers but no luck. Any suggestions? Screen rotate also does not work but that is not surprising since i is likely not a very common use case.
I suspect your tablet has a certain Intel Broadwell-U audio chip that requires 'snd_hda_intel' like my Helix2 has.
If that's the case: Alas no solution, the firmware is old and doesn't work any more since of 2022.
Installing a Buster based version will work or either Ubuntu 22.04 IIRC....providing you don't upgrade the kernel.
Downgrading the kernel does not work either, the firmware doesn't load correctly. 
- Note: Other than that, sound works fine over i.e bluetooth.
Do a search here on the forum for Helix and you'll find quite a few options.
For (auto-)rotation there are quite a few simple solutions as well. Again do search here for 'rotate'. 
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