ACPI error when trying to make dual boot with Ubuntu 18.04 and Windows 10
Solution 1:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=strict"
Is way better, and changing timeout from 90 seconds to 3 seconds stopped the still less frequent recurring errors from making booting or shutting down unbearably long or even forever.
Edit: I forgot how and googled it for you
sudo gedit /etc/systemd/system.conf
and change the defaul unbearable 90s to 3 (in my case)
- DefaultTimeoutStartSec=3s
- DefaultTimeoutStopSec=3s
Solution 2:
I have been having a similar problem with my Dell XPS 15. I posted a question very similar to yours and someone helped me find a solution to the issue. It is possible that the errors and freeze are due to the Nvidia graphics card. I was able to get passed this error using the 'nomodeset' trick. See the comments in my post located here: Running Ubuntu via live USB error on Dell XPS 15 9560
Solution 3:
Some computer don't work well with Ubuntu because of "ACPI issues ... like My Cutting Edge Omen X. I pulled my hair out for a couple of days, and now on my third day I may have it solved or at least much better.
• Symptoms
not loading / booting
hundreds of "acpi INT3400:00: Unsupported event [0x86t" errors at booting up and shutting Down,
and sometime endless errors crippling startup and shutdown
‣ also Nvidia was not playing nice, and my HDMI wasn't working right
‣ All seemingly related WOW
• Make NO ACPI IN Ubuntu,
∘ Edit the grub file with this command in terminal:
sudo gedit /etc/default/grub
∘ Make the similar in the Grub file line look like this
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=off"
∘ Update Grub with this command:
sudo update-grub
∘ Reboot - &&&&& Good Luck
Solution 4:
The solution suggested in the below link to use nomodeset in /etc/default/grub works fine for Dell XPS 15. But it won't load your acpi drivers due to which I am not able to use the brightness controller.
You can also try to boot in with the recovery mode which by default doesn't load your graphics drivers allowing you to boot into your system.
http://www.dell.com/support/article/uk/en/ukbsdt1/sln306327/manual-nomodeset-kernal-boot-line-option-for-linux-booting?lang=en