How to test for faults in a USB port
by moxieman99 from LinuxQuestions.org on (#4VX5N)
I have a ChannelMaster CM-7500GB16 OTA DVR (over the air digital video recorder). It runs on linux (an old Ubuntu version, I believe).
Recently it stopped recognizing my external hard drive, which connects to the DVR by way of a USB 2.0 port. The hard drive, hard drive enclosure, and cable are fine. The ChannelMaster just refuses to recognize that it is there.
How can I perform a hardware test on the USB port in the DVR to see if it failed? It would have to be something that could just plug into the port and test, as you cannot program the DVR in any way.
Thanks for any help.
Moxieman
Recently it stopped recognizing my external hard drive, which connects to the DVR by way of a USB 2.0 port. The hard drive, hard drive enclosure, and cable are fine. The ChannelMaster just refuses to recognize that it is there.
How can I perform a hardware test on the USB port in the DVR to see if it failed? It would have to be something that could just plug into the port and test, as you cannot program the DVR in any way.
Thanks for any help.
Moxieman