gistfile1.txt

$ lsmod|grep dvb                                                                   :(
smsdvb                 20480  3
dvb_core               94208  1 smsdvb
smsmdtv                49152  2 smsdvb,smsusb

$ pacman -Q w_scan
w_scan-20161022-1

$ w_scan
w_scan version 20161022 (compiled for DVB API 5.10)
guessing country 'TW', use -c <country> to override
using settings for TAIWAN
DVB aerial
VSB US/CA, DVB-T TW
scan type TERRESTRIAL, channellist 1
output format vdr-2.0
output charset 'UTF-8', use -C <charset> to override
Info: using DVB adapter auto detection.
main:3916: FATAL: ***** NO USEABLE TERRESTRIAL CARD FOUND. *****
Please check wether dvb driver is loaded and
verify that no dvb application (i.e. vdr) is running.