GRUB_CMDLINE_LINUX="console=tty0 console=ttyS0,9600n8"
ASUS Zenbook UX501V - Upgrade F27 to F28
by tgutwin
Posted on Sunday Jun 03, 2018 at 04:52PM in Technology
ASUS Zenbook UX501V - Upgrade F27 to F28 to F32
NVidia driver issues still persist (see next blog post), but I finally debugged (and disabled) the acpi consistent errors that had be plaguing me in F27, but now were leading to kernel CPU errors and hangs.
I added a kernel boot param to my Grub2 commandline.
- acpi=off
I did it temporarily 1st then permanently with
Editing a Grub2 Menu Entry
(see https://docs.fedoraproject.org/f28/system-administrators-guide/kernel-module-driver-configuration/Working_with_the_GRUB_2_Boot_Loader.html)If required to prepare a new GRUB 2 file with different parameters, edit the values of the GRUB_CMDLINE_LINUX key in the /etc/default/grub file.
Add the parameter:
- acpi=off
right after 'quiet'
Note that you can specify multiple parameters for the GRUB_CMDLINE_LINUX key. For example:
Where console=tty0 is the first virtual terminal and console=ttyS0 is the serial terminal to be used.
Changes to /etc/default/grub require rebuilding the grub.cfg file as follows:
-
On BIOS-based machines, issue the following command as
root:
~]# grub2-mkconfig -o /boot/grub2/grub.cfg
-
On UEFI-based machines, issue the following command as
root:
~]# grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg
Now at least I can boot to Cinnamon. Gnome-wayland still does not startup. I believe it is the nouveau drivers having issues with wayland.
I am going to try the NVIDIA driver. Install instructions: at If Not True Then False
UPDATE:
I have since upgraded to 29 then to 30 on August 2, 2019 and eventually F32 in May2020 that required a BIOS update that fixed everything.
No issues, but still needs acpi=off on the grub boot cmdline.
The trackpad does NOT work.
FIXED:
kernel 5.3.16-200. finally works... so does the next updated kernel 5.4.7 all the way to 5.4.19
BUT breaks again on 5.5 and 5.6 kernels
use the following to fix grub
grubby --info=ALL
grubby --remove-args="acpi=off" --update-kernel /boot/vmlinuz-5.4.19-100.fc30.x86_64grubby --set-default /boot/vmlinuz-5.4.19-100.fc30.x86_64
grub2-mkconfig
grubby --info=ALL
You can also remove a kernel from the grub menu with
grubby --remove-kernel=/boot/vmlinuz-5.5.10-100.fc30.x86_64
You can also remove the actual kernels
rpm -qa kernel
dnf remove kernel-5.5.16-100.fc30.x86_64
