Monitor not detected when booting directly from kernel
An EFI boot manager utility
Status: Beta
Brought to you by:
srs5694
Menu
▾
▴
Hi Rod & Co.
New installation of rEFInd from the Ubuntu PPA into Ubuntu 18.10 on an ASUS Z97 series motherboard. Nvidia GTX 970 video adapter using the proprietary Nvidia 390 series driver. Single Dell 24 inch LCD display.
Installation nominal, no errors.
When the machine starts the rEFInd boot selection screen appears as it should. Chosing to boot to GRUB works totally normally. (but takes awhile as expected). No problems.
However, when I try to boot the kernel directly (4.18.0-10), the system comes up with a screen resolution of 1024 X 768 instead of the desired 1900 X 1200. The GNOME-SETTINGS utility reports a display was not detected and there are no other options for screen resolution. I just realized I have not verified which video driver was loaded. I'll follow up. Everything else functions normally.
I could successfully boot the kernel directly with REFInd on the same hardware with Fedora 28, but that's been removed from the machine.
The UEFI settings have compatability support mode set to "auto" and secure boot set to "other O/S". There is no option to totally disable secure boot. The settings have not changed.
Appreciate any insight or assistance. If this is covered by the rEFInd documentation, all I need is a pointer.
Thanks in advance and thank you for rEFInd.
Ron Morse
Just verified the proprietary Nvidia video driver is not loaded. It picked the noveau driver instead. Let me fix that and I'll follow up, again.
Well, the problem is that rEFInd isn't finding (or at least showing in the boot selections) the kernel that has the proprietary driver installed. It finds 4.18.0-10-generic, GRUB uses 4.18.0-13-generic and uses the correct video driver. Sigh. Back to the documentation. Apologies for using this space to troubleshoot.
Solved: It was the inverted kernel version timestamp issue. A "one-touch" fix.
FWIW, hitting Tab, Insert, or F2 will produce a list of boot options, and if you've got multiple kernels installed, that list will include all the kernels, too (with each option set duplicated for each kernel). Also, if you set
fold_linux_kernels falseinrefind.conf, you'll see a separate entry for each kernel on the main screen, rather than available via Tab/Insert/F2 options.