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aut0exec

Member

Registered: 2018-11-21

Posts: 81  

UEFI Installation Woes

Went to reinstall Devuan on another HD in a Toshiba C-50 using UEFI and keep running into an issue where the installer displays only on the top third of the screen. I remember having this issue before but I don't recall what I did to solve it. Switching to CSM works but I need UEFI enabled to work with secure boot (I believe).

I thought that it was solved with a kernel parameter at boot (something with efifb maybe) but nothing has worked yet. I've tried efifb=off, vga=efifb:off, and the every popular nomodeset but nothing has worked. Any one have any thoughts or know how to solve this? It occurs on Devuan ascii and beowulf (4/14) net installs as well as Debian buster net install.

fsmithred

Administrator

Registered: 2016-11-25

Posts: 2,486  

Re: UEFI Installation Woes

Try setting the grub screen resolution at the boot menu. I get something similar with my toshiba - the installer screens are scrambled and don't cover the full monitor.

At the boot menu, press e to edit.
Down arrow once to move the cursor to the blank line and add
set gfxpayload=1366x768 (or whatever resolution your laptop likes)
Press ctrl-x to boot

aut0exec

Member

Registered: 2018-11-21

Posts: 81  

Re: UEFI Installation Woes

Red, I saw your post in another thread and SWEAR I did just that and still had the same issue but this morning it worked and the installer is displaying properly... So thank you again!

Last edited by aut0exec (2019-05-03 11:35:41)