I am having the same problem among others. Originally bought Flirc about 1 year or more ago. Used for raspbmc, worked fine (firmware 0.96?). Didn't have time to work further on this project until a few weeks ago. Updated Flirc to 3.0 firmware and new GUI. Now flirc stops working after a while - totally dead, no signals recognized.
Unable to locate where on this site can open a trouble ticket.
Configuration Details:
Raspberry Pi model B, 1+amp power supply. 1+amp USB powered hub connected to Flirc and Logitech wireless USB keyboard (problem also without attaching keyboard). Analog audio + video output. Wired ethernet.
Raspbmc build info:
raspbmc-rls-1.0-hardfp-b20130208-u20140926
XBMC Version Info:
15:08:22 T:3037765632 NOTICE: Starting XBMC (14.0-ALPHA1 Git:20140428-6046397). Platform: ARM Linux 32-bit
15:08:22 T:3037765632 NOTICE: Using Release XBMC x32 build, compiled Apr 28 2014 by GCC 4.7.1 for ARM Linux 32-bit 3.2.21
Kernel Version:
Linux raspbmc 3.12.21 #2 PREEMPT Wed Jun 11 04:53:06 UTC 2014 armv6l GNU/Linux
Flirc Firmware: v3.0
Flirc GUI Version: v1.27
Git Version: v1.27+
Based on Qt 4.8.0
Windows Version 8.1 (for GUI)
Remote Device: Sharper Image 7-in Universal remote, using SBT button programmed for LG Home Theater code 0898.
