Re: Soundmodem hangs all USB keyboard or mouse input -- and soundmodem 0.16: fix the AFSK modulator for 300 baud operation
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On Sat, 7 Apr 2012, David Ranch wrote:
I've CCed the Linuxhams group as I'm curious if any of you have any thoughts on why Soundmodem would be shutting down all USB-based keyboard and mouse functionality until the process is killed! In all my years of Linux, I've never need something like this. Very strange and any/all comments would be very much appreciated!
I've seen something kind of like it on my motherboard at home that has an NVidia 8200 chipset integrated in. If I plug in _any_ USB 1.x devices, the whole Linux USB stack crashes and I lose keyboard/mouse (if they're USB). It's a known problem with the NVidia chipset and the USB 1.x controller they integrated into it. Their USB 2.x controller doesn't have the problem. My fix: Plug in a USB smart hub, plug the USB 1.x devices into that: The motherboard only sees USB 2.x protocol and everything works great. The device that caused it in my case: A USB SignaLink box that I use to do digital modes on HF. -- Curt, WE7U. http://www.eskimo.com/~archer APRS Wiki: http://info.aprs.net/ -- To unsubscribe from this list: send the line "unsubscribe linux-hams" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html