malin@kaffemocca:~$ sudo apt-get install --reinstall libgbm1
[sudo] password for malin: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 0 not upgraded.
Need to get 19,0 kB of archives.
After this operation, 0 B of additional disk space will be used.
Get:1 http://no.archive.ubuntu.com/ubuntu/ trusty-updates/main libgbm1 amd64 10.1.3-0ubuntu0.6 [19,0 kB]
Fetched 19,0 kB in 0s (131 kB/s)    
Selecting previously unselected package libgbm1:amd64.
(Reading database ... 511622 files and directories currently installed.)
Preparing to unpack .../libgbm1_10.1.3-0ubuntu0.6_amd64.deb ...
Unpacking libgbm1:amd64 (10.1.3-0ubuntu0.6) over (10.1.3-0ubuntu0.6) ...
Setting up libgbm1:amd64 (10.1.3-0ubuntu0.6) ...
Processing triggers for libc-bin (2.19-0ubuntu6.9) ...