I updated to Tex Live 2015 on Ubuntu 14.04 and trying to use tlmgr --gui to update packages but it not working.
Installed the perl-tk through
sudo apt-get install perl-tk
and then used
tlmgr --gui
but it says
Segmentation fault (core dumped)
and also tried
tlmgr gui
but with the same message
Segmentation fault (core dumped)
Any idea to solve the issue. Thanks in advance for your help.