Toshiba Satellite C55-B5299 Powers Off When Booting From Any EFI Device

[Luke B.]

Model: Toshiba Satellite C55-B5299
CPU: Intel Celeron N2830 / 2.16 GHz
RAM: 8GB DDR3L
Current OS: Ubuntu 18.04 Stable
UEFI Version: 5.10 (Latest)

Problem Description:
Beginning in April 2018, my laptop would stay at the OEM logo screen upon being powered on, with no activity except the running fans. I am able to boot into the EFI to change settings. (Which are able to be modified) However, entering the EFI Boot Menu to boot from a device will abruptly power off the laptop.

Previous Workarounds:
- Entering EFI and selecting "load setup defaults" temporarily fixed the issue until it occurred again at a later date.
- Switching from UEFI to CSM and back again temporarily allowed me to boot into the system, as everything functioned normally.

Potential Explanation:
Notably, this device ran Windows 10, Ubuntu 17.10, and currently Ubuntu 18.04. I am convinced that my EFI is corrupted from a previously-installed Ubuntu release, possibly 17.10, because I am now unable to boot from ANY device in the EFI boot menu. Selecting one, for instance USB or HDD, results in an immediate shut down. This appears to not be a hardware issue because restoring the EFI defaults used to fix the issue. Now, none of the workarounds above will work. I have ruled out hardware problems, because the computer functioned fine after the workaround. The AC adapter works fine, battery holds a charge, and computer would never crash. Even after removing the HDD, the computer still WILL NOT even say "No OS found", as it is unable to boot. Again, everything worked perfectly until I decided to shut down my laptop, only to experience this issue again. Switching to CSM Legacy boot allows me to boot the computer.

I have determined that EFI Corruption Is Likely.

Many thanks for any help!

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1780588/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Luke B. (duke7553)]

I believe this is in fact a hardware problem, as the EFI mode on my laptop fails to load the OS. Using CSM-Legacy is a workaround. Thus, I have marked the issue as incomplete because it may not be Ubuntu-related.

[Launchpad Janitor (janitor)]

[Expired for Ubuntu because there has been no activity for 60 days.]