has anyone out there been successful in using a mini pcie lte modem (ttyUSB) and an usb sdr dongle (rtl_tcp) together? separately they work fine, but when i boot with usb sdr dongle in or plugin and run rtl_tcp when already up, my lte modem goes down. usb conflict. but cant figure out solution. udev? anyone experienced this?
Sounds interesting, what are the relevant messges from dmesg? Maybe try udevadm monitor -u or similar when you plug it in?