This issue seems to be back around.
I'm running a clean install of Mythbuntu 12.04.3 LTS. When I run Flirc (sudo or as myth-user), here's the results that I get:
./Flirc: error while loading shared libraries: libQtSvg.so.4: cannot open shared object file: No such file or directory
The results from lsusb:
Bus 002 Device 019: ID 20a0:0001 Clay Logic
The results from flirc_util:
me@my-myth:~/Flirc-v1.2.2-x64$ ./flirc_util version
Warning: cannot open USB deviceWarning: cannot open USB devicedevice disconne