Arch Linux

Dreamkey

Member

Registered: 2010-08-28

Posts: 53

Blank screen while trying to get a flicker free boot

Hello,

I'm trying to set-up a flicker-free boot on my laptop but I have a blank screen that I was not able to remove.

I took a video before I tried to configure anything, the boot sequence was like this:

:: running early hook [udev]
[...]
Starting File System Check on /dev/disk/by-uuid/...

< blank screen, no backlight, the boot log is cleared >

[ OK ] Set up automount boot.automount.
[...]

Now I see:

1. laptop brand logo

2. blank screen

3. plymouth theme

4. laptop brand logo again (?)

Here are my bootargs ("udev.log_level=3" is to remove systemd version log)

root=UUID=... rw initrd=\intel-ucode.img initrd=\initramfs-linux.img quiet udev.log_level=3 splash

Note: if I also have "loglevel=3", I discovered it removes the laptop brand logo, but it just means a black screen for a few seconds before the blank screen

/etc/mkinitcpio.conf, I replaced udev by systemd to remove fsck logs. Also tried to add i915 inside MODULES, but I can't see a difference

MODULES=(i915)
HOOKS=(base systemd sd-plymouth autodetect modconf block filesystems keyboard fsck)

Note: even if I don't have sd-plymouth inside HOOKS, it is started automatically if I boot with the "quiet splash" bootargs.

$ cat /etc/modprobe.d/i915.conf 
options i915 fastboot=1 modeset=1

If it helps, it's an Optimus laptop, but I can see the Nvidia power LED turning off during the plymouth theme, after the blank screen.
Also, the option inside the UEFI to not display the brand logo is grayed out.