I have an odd issue that is actually solved but which I'm curious on if anyone knows the cause of.
I have a laptop (Lenovo ideapad 330) which came preinstalled with Windows 10. I have installed Ubuntu 20.04.1 LTS beside windows and can dual boot to either of them via grub.
When booting the laptop grub gives me 4 options:
- Advanced options for ubuntu
- Windows 10
- Bios (If i remember correctly)
Most times everything works as expected and I can boot into any of the options.
Two times since I installed Ubuntu about a month ago the following has occurred: When I'm booting all 4 options above show up but I'm unable to choose 2 and 3. Arrow up and arrow down just jumps over option 2 and 3.
At this point if I boot into Ubuntu there is another issue. Some keys on the keyboard do not work while others do. I have not tested all keys to see which work. Most keys work but "c" and "spacebar" for example have no effect. Pressing them does nothing regardless of which application is open. The oddest part is the solution.
If boot into Ubuntu, login and press the "Fn" key everything starts working as expected. All keys start working instantly in Ubuntu and I'm once again able to boot into Windows 10 and advanced options for Ubuntu.
So I have a solution to the issue but I'm extremely interested in if anyone knows why this happens as it seems very odd to me with an issue that relates to both the keyboard once booted in Ubuntu and not being able to boot into Windows and also that it happens intermittently. Any suggestions or thoughts?
I've tried googling the issue but have not found any matches that relate both to booting and keyboard and all options showing in grub without being able to select them.