Hi Nicolas,It might be worth double checking you have the latest BIOS/UEFI? If it's not the latest, then updating is worth a try IMO.
FWIW I recently updated mine to resolve some (completely unrelated) issues on my Lenovo Gen 1 X1 Carbon on Bookworm. With no optical drive and no Windows, it initially seemed like a PITA, but ended up pretty easy.
Process went something like this: - download relevant BIOS/UEFI update ISO specific to your model from Lenovo - extract IMG from ISO (using 'geteltorito' tool in 'genisoimage' pkg) - write IMG to USB (e.g. using 'dd') - boot from USB - update...! :)If you are already running latest, updating doesn't help, or you want to try a workaround, perhaps try disabling UEFI (i.e. disable secure boot and enable "legacy BIOS only" mode) and install the non-uefi grub (i.e. 'grub-pc')?
Good luck. Cheers, Jeremy
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