I'm using Ubuntu 16.04 LTS
$ lspci -nn | egrep VGA 00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09)
$ uname -a Linux hostname 4.4.0-59-generic #80-Ubuntu SMP Fri Jan 6 17:47:47 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
This is the first time it happens to me. I just logged out from X session and back again as @Alvaro Uría and it solves the problem.
I'm using Ubuntu 16.04 LTS
$ lspci -nn | egrep VGA
00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09)
$ uname -a
Linux hostname 4.4.0-59-generic #80-Ubuntu SMP Fri Jan 6 17:47:47 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
This is the first time it happens to me. I just logged out from X session and back again as @Alvaro Uría and it solves the problem.