darktable nao abre no mint17 kde

pessoal to acostumado a lidar com o darktable em varias versoes do linux mas no linuxmint 17 kde nao ta funcionando... pelo konsole deu a seguinte mensagem

""> darktable
[defaults] found a 64-bit system with 3944920 kb ram and 4 cores (0 atom based)
Setting of real/effective user Id to 0/0 failed
modprobe: ERROR: could not insert 'fglrx': Operation not permitted
Error! Fail to load fglrx kernel module! Maybe you can switch to root user to load kernel module directly
Setting of real/effective user Id to 0/0 failed
modprobe: ERROR: could not insert 'fglrx': Operation not permitted
Error! Fail to load fglrx kernel module! Maybe you can switch to root user to load kernel module directly
Could not attach to process. If your uid matches the uid of the target
process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try
again as the root user. For more details, see /etc/sysctl.d/10-ptrace.conf
ptrace: Operation not permitted.
/home/lmkde17/4286: No such file or directory.
backtrace written to /tmp/darktable_bt_BZG3IX.txt
Segmentation fault""

o que pode ser? obrigado!