Wolf (HE12025-07-09): > After some system updates, the keyboard and the mouse become unusable > (and the keyboard is not illuminated) during boot: I cannot access > BIOS and cannot select grub entries. > Then, once system started, both keyboard and mouse become usable.
What you describe is an issue in your system firmware: the devices start working when Linux takes control, the problem is not Linux. > Later, after other system updates, the the keyboard and the mouse are > working again during boot, and so on: the on/off cycle repeats. That was not clear. Regards, -- Nicolas George

