ALT and CTRL behave like SHIFT

Question

I installed Ubuntu a few days ago and I noticed that both of my CTRL and both of my ALT keys behave exactly the same as the Shift key.

I have tried changing input method, but it didn't help.

What could be the problem and how can I fix it? I am using ubuntu on dekstop pc Keyboard is Tracer hellway

Answer 1

Appears to a possible Duplicate of CTRL and ALT works as SHIFT?.
Anyway try this:-

1. Install driver from https://bitbucket.org/Swoogan/aziokbd

   sudo apt-get install mercurial build-essential linux-headers-generic dkms
   hg clone https://bitbucket.org/Swoogan/aziokbd
   cd aziokbd
   sudo ./install.sh dkms
   

2. Add kernel option to grub to prevent usbhid from being used for this keyboard. Append:

   usbhid.quirks=0x0c45:0x7603:0x4
   

   to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub.

   Example:

   GRUB_CMDLINE_LINUX_DEFAULT="quiet splash usbhid.quirks=0x0c45:0x7603:0x4"
   

3. Update grub

   sudo update-grub
   

4. Reboot

References:

• CTRL and ALT keys mapped to Shift for some reason
• dkms Installed kernel module but not working after reboot
• Prevent usbhid from claiming USB device

Orignally answered by user.dz