I´m currently unable to make special characters using left alt on my MacBook Pro, Swedish keyboard (running for an external SSD, Ubuntu 14.04).
For example, if i try to make a pair of curly brackets using left alt, i.e. shift+left alt+8 and 9 nothing happens - it only works using right alt. However, left alt do work with other keyboard shortcuts like ctrl+left alt+T. I have tried different keyboard layouts and to look for suitable options in
system preferences -> text entry. I did notice that there are similar questions to mine, but they involve special characters using left ctrlleft alt, and not left shiftleft alt. Is it a simple fix to this?