Ubuntu 14.04 installation issue - Keyboard and mouse not working

Question

After installing the new Ubuntu version 14.04 LTS, the keyboard and mouse are not working.

I have Ubuntu 10.10 installed and I want to update to the last version (14.04), so I installed the new version in a new hard disk.

During installation the keyboard and mouse worked fine, after reboot the keyboard and mouse didn't work anymore. If I try to unplug any of them and then I reconnect them, sometimes the system halts.

I have a motherboard ECS C51GM-M, and the keyboard and mouse are PS/2.

It's important to mention that in Ubuntu version 10.10, all still works fine.

Finally, I want to clarify that I'm new in Ubuntu, I haven't installed the previous version.

Solution

I had this problem after updating. I can't use my keyboard/mouse if I load the latest Linux kernel, (Linux 3.13.0-24-generic) but if I choose an older one (Linux 3.11.0-19) under Advanced options for Ubuntu in GRUB it works for me.

I have a PS/2 keyboard and USB mouse.

Not sure if that helps on your new install though, it might not have shipped with other kernel versions

Comments

[TuKsn]

How did you installed Ubuntu? From a USB drive?

[DCC]

Thanks for your reply Simptnon! No, i installed it from a DVD burned with the ISO image downloaded from Ubuntu website.

[TuKsn]

Can you test it with a USB-Keyboard? Perhaps this helps windowssecrets.com/forums/showthread.php/…! or forums.opensuse.org/showthread.php/…

[bain]

You can not hotplug PS/2 devices - that is why it crashes when you try to unplug them

[bain]

Can you ssh in to the PC after booting (with the keyboard and mouse plugged in)?