Quartus Prime v15.1 on Ubuntu 14.04 LTS - No devices available in New Project Wizard

I've installed Quartus Prime v15.1 using the complete installer, which appears to include device installation. However, no devices are showing up in the New Project Wizard.

$ ll /opt/altera/15.1/quartus/common/devinfo/
total 7192
drwxr-xr-x 19 root root    4096 Nov 23 10:01 .
drwxr-xr-x 19 root root    4096 Nov 23 09:52 ..
drwxr-xr-x 11 root root  249856 Nov 23 09:59 20nm
drwxr-xr-x  7 root root   12288 Nov 23 10:01 55nm
drwxr-xr-x  2 root root   45056 Nov 23 09:57 arriaii
drwxr-xr-x  2 root root   20480 Nov 23 09:57 arriaiigz
drwxr-xr-x  8 root root   98304 Nov 23 10:00 arriav
drwxr-xr-x  4 root root  167936 Nov 23 10:00 arriavgz
drwxr-xr-x  2 root root    4096 Nov 23 09:52 configuration
drwxr-xr-x  2 root root   57344 Nov 23 10:00 cycloneive
drwxr-xr-x  2 root root   20480 Nov 23 10:00 cycloneivgx
drwxr-xr-x  9 root root  102400 Nov 23 10:01 cyclonev
-rw-r--r--  1 root root    2087 Oct 21 23:42 ddb_cumulative_family.ddb
-rw-r--r--  1 root root   76435 Oct 21 23:42 ddb_cumulative_info.ddb
-rw-r--r--  1 root root 4490240 Oct 22 12:55 device.db
-rw-r--r--  1 root root   32768 Oct 22 12:55 device_empty.db
-rw-r--r--  1 root root 1583104 Oct 22 12:55 device_pro.db
drwxr-xr-x  2 root root    4096 Nov 23 09:52 dev_install
drwxr-xr-x  2 root root    4096 Nov 23 09:52 legacy
drwxr-xr-x  2 root root   12288 Nov 23 10:01 maxii
drwxr-xr-x  2 root root   12288 Nov 23 10:01 maxv
drwxr-xr-x  3 root root   36864 Nov 23 09:52 programmer
drwxr-xr-x  2 root root   77824 Nov 23 10:01 stratixiv
drwxr-xr-x 10 root root  188416 Nov 23 10:02 stratixv

I'm almost certain I've run into this issue in the past with other versions of Quartus, but I cannot find any record of how I fixed it.

Does anybody have any ideas?