On Sun, Oct 5, 2025 at 12:22 AM Tim via users <[email protected]> wrote: > > On Sat, 2025-10-04 at 11:42 -0600, home user via users wrote: > > I need to do some more BIOS configuration. But when I push the button > > on the top of the case, I never see a "POST" screen. Rather, the F-42 > > login screen appears quite quickly. I checked the motherboard's > > manuals. They say to push the "Delete" key after pushing the power > > button on top of the case. Doing that seems to have no effect. Neither > > does "Enter" nor "End" nor "F12". > > As general info, and seeing how various Linux users will have to > contend with "my keyboard is ignored" for these reasons when trying to > set up a new installation, or get it to actually boot after > installation, despite someone here whinging about an OT post: > > Some motherboards only respond to a PS/2 keyboard straight away, their > USB keyboard input emulates the PS/2 keyboard, and may start to do that > too late, or only if some BIOS option is set. There are often > BIOS options to change this (legacy modes), but you have to get into it > first. After bootup has started, it's your OS that takes over, and > it's far more flexible. > > You may also have to try different USB ports to find the one they do > this with (probably the nearest ones to the PS/2 ports). And on > motherboards with no PS/2 sockets, you may find they also have specific > USB ports they look for a USB keyboard on at boot time. If your > motherboard has a mix of USB 1, 2, or 3 sockets, the lowest speed ones > are probably its preferred keyboard ones (yours too, you want the high > speed ports for other things). > > If you're fighting to get your motherboard to recognise a keypress > before booting starts, you can try unplugging your HDD/SDD (first). > You may get more of a chance. > > Once you do get into your BIOS/UEFI it's probably a good idea to look > for an option that puts in a boot delay, give it a couple of seconds. > You may find there's a fast boot option that ignores any user input > before immediately booting the drive. And motherboards that show a > logo while posting may also be an issue (you can try changing whatever > it does now, to the opposite option).
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