Ubuntu 18.04 purple screen blinks
Solution 1
If you happen to have an AMD graphics card, try the solution proposed in this answer:
I solved it myself by using
amdgpu.dc=0
as a boot parameter.To do this, edit the file
/etc/default/grub
, for example usingsudoedit /etc/default/grub
Find the line beginning
GRUB_CMDLINE_LINUX_DEFAULT
and add the textamdgpu.dc=0
between the double quotes (""
). Leave any other parameters as they are. For example, you may end up with a line like this:GRUB_CMDLINE_LINUX_DEFAULT="quiet splash amdgpu.dc=0"
Save the file and exit, and then run
sudo update-grub
to write the configuration, and reboot.
Solution 2
While the Ubuntu screen was flickering I hit cntl-alt-del and it rebooted and when to the boot screen to select an OS. I selected Ubuntu and it booted without problems.
Solution 3
The easiest way is to:
- Boot your Linux in ("Recovery Mode")
- After going into Recovery mode, select "Update GRUB"
- Press ENTER on "UPDATE GRUB"
- Reboot
Worked for me, I had a blinking screen on my Ubuntu 18.04 with Intel graphics, but as long as you are on X drivers (by default and recommended strongly - by my opinion) you'll be fine, if not please let me know there is a way around. But, as I said, these 3-4 steps will resolve your issue with blinking splash/ boot screen when "Ubuntu is loading".
Thank you.
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Comments
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Sachith Muhandiram over 1 year
When I switch on my laptop, it boots and goes into blinking stage. Keyboard and mouse work.
After do a force shutdown using power button and boot again, this problem is gone and it boots normally.
I did boot-repair and it didn't help me either. Or is this a common bug in 18.04
Any suggestions about installing
ubuntu-desktop
again as suggested here?I did a version upgrade from Ubuntu 16.04 to 18.04. My Laptop is hp with AMD-A6 and Readon-R4 graphics.
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Pita almost 6 yearsI'm having the exact same problem. I'm not certain what it is, but I've found a good workaround. I turned off the splash screen and so far it's helped me. Here's a link that describes how to turn off your splash screen. I hope it helps! askubuntu.com/questions/248/…
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neelanshu about 5 yearsI am also having the same problem when I boot with the default ubuntu version, however if I click on the option that allows me to choose the ubuntu version, and choose an earlier version then it runs fine. After booting with the earltier version, if I "restart" (instead of power of and then swithcing it on) and boot with default version then the problem does not occur. I did not have this problem when I initially upgraded to 18.04 but the problem started after one of the software upgrades. I have AMD (Hp laptop) with Readon-R4 graphics.
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Pradeeban Kathiravelu over 5 yearsYes, that worked.