0

After selecting Ubuntu in the Grub2 bootmenu, Ubuntu suddenly starts boot up, and the first enocounter is logo with a strange random background color. Later, the color changes to the original "normal".

I'm using Ubuntu 18.04 version.

One of suspects https://wiki.ubuntu.com/Plymouth As while these strange backgrounds appear, it is possible to press ESC button and get the log details of the boot.

How can this be traced and fixed? I would like to not have these strange backgrounds even if they appear for 7-10 seconds.

Also, Ubuntu is installed on USB. I plugged the same Ubuntu version into my Desktop computer, and there were no strange background change as it was with my laptop.

Could this be some kind of drivers problem?

enter image description here

enter image description here

user3789797
  • 219
  • Try editing /etc/default/grub and change #GRUB_GFXMODE=640x480 to GRUB_GFXMODE=640x480. Then do sudo grub-update. Then type reboot. Report back to @heynnema. – heynnema Sep 28 '18 at 17:25
  • Did you mean sudo update-grub? This command followed by error: /usr/sbin/grub-probe: error: failed to get canonical path of '/cow'.

    After editing and applying your patch, nothing changed, no changes in booting can be seen.

    Double Checked. @heynnema

     – user3789797 Sep 29 '18 at 10:09
  • Oops. You're correct of course. That's what happens when you try and do this without my first cup of coffee :-) After doing the correct commands, you see no difference on the boot screen? Have you installed any video drivers? What video hardware do you have? – heynnema Sep 29 '18 at 13:09
  • I haven't installed any drivers manually, This is the laptop's graphic's card: AMD Radeon™ HD 7670M Graphics (2GB dedicated memory) I checked https://support.amd.com/en-us/kb-articles/Pages/AMD-Radeon-GPU-PRO-Linux-Beta-Driver%E2%80%93Release-Notes.aspx But it seems that it is not compatible with little less powerful/older graphic cards, if i'm not mistaken. – user3789797 Sep 29 '18 at 14:08
  • Also, I checked https://support.amd.com/en-us/kb-articles/Pages/Radeon-Software-for-Linux-Release-Notes.aspx there they noted that only AMD Radeon™ HD7700/7800/8500/8600 are supported, I might need to give a try if AMD Radeon™ HD 7670M could work with them – user3789797 Sep 29 '18 at 14:17
  • Installing Radeon drivers didn't fix anything related. https://support.amd.com/en-us/kb-articles/Pages/AMD-Radeon-GPU-PRO-Linux-Beta-Driver%E2%80%93Release-Notes.aspx – user3789797 Sep 29 '18 at 15:11
  • I think it is a problem with the driver and the graphics chip/card. See this link – sudodus Sep 29 '18 at 19:46
  • There are limits with persistent live systems. If you install Ubuntu into the USB pendrive (I mean install like into an internal drive), you will have more possible solutions, all the tricks and tweaks, that work with an installed system. For example, the methods suggested by @heynnema are more likely to succeed, and you can try several boot options. This link may help, How do I install Ubuntu to a USB key? (without using Startup Disk Creator) - step-wise instruction. – sudodus Sep 30 '18 at 14:23

1 Answers1

0

From the comments...

Attempt at fix #1:

Edit /etc/default/grub and change

#GRUB_GFXMODE=640x480

to

GRUB_GFXMODE=640x480

Then do

sudo update-grub
reboot

Attempt at fix #2:

Edit /etc/gdm3/custom.conf and change

#WaylandEnable=false

to

WaylandEnable=false

Reboot and see if that helps.

Attempt at fix #3:

In terminal...

sudo update-initramfs -c
reboot

Update #1:

The user is appears to be running on a USB flash drive created with mkusb, with persistence... but they're not able to do fix #3... "read only file system" error. This fix won't work on a USB Live system.

Recommend installing Ubuntu on a standard HDD or SDD.

heynnema
  • 70,711