Author: matrix2020
Subject: J3455-itx bios csm boot issue
Posted: 11 Nov 2016 at 2:20am
The problem is not with Windows (or any other OS).
After I enable csm, bios fails to load.
That is if I press F2 I get a black screen instead of getting into bios.
Only if I enable csm for video launch efi only (as opposed to launch legacy only), I am able to boot into bios.
If it is impossible to allow both legacy and efi bios boot, I would suggest the following:
1. Detect that F2 is pressed.
2. Quietly change the csm setting to video bios efi only.
3. Restart to load efi.
After the changes have been made, revert to csm video legacy only and reboot.
Subject: J3455-itx bios csm boot issue
Posted: 11 Nov 2016 at 2:20am
The problem is not with Windows (or any other OS).
After I enable csm, bios fails to load.
That is if I press F2 I get a black screen instead of getting into bios.
Only if I enable csm for video launch efi only (as opposed to launch legacy only), I am able to boot into bios.
If it is impossible to allow both legacy and efi bios boot, I would suggest the following:
1. Detect that F2 is pressed.
2. Quietly change the csm setting to video bios efi only.
3. Restart to load efi.
After the changes have been made, revert to csm video legacy only and reboot.