Re: DVI swtch is not working with Debian 8.0
On Sun, 10 Jan 2016 13:53:07 -0500
Gary Dale <garydale@torfree.net> wrote:
> On 10/01/16 08:50 AM, German wrote:
> > On Sun, 10 Jan 2016 08:26:03 -0500
> > Gary Dale <garydale@torfree.net> wrote:
> >
> >> On 10/01/16 01:47 AM, German wrote:
> >>> Hi list,
> >>>
> >>> I recently bought this DVI KVM switch:
> >>> http://en.mt-viki.com/product/KVM/usbkvm_dvi/2014/0712/577.html
> >>>
> >>> It claims to support linux and from what I understand it is
> >>> hardware switch, so it should work. It isn't. To be specific,
> >>> mouse and keyboard don't work. Both mouse and keyboard works in
> >>> BIOS though through the switch. I wonder if anyone has any ideas
> >>> what's the problem might be. Thank you.
> >>>
> >> I'm assuming that both keyboard and mouse work when plugged
> >> directly into the box you want to control.
> >>
> > Yes, they work
> >> What happens if you unplug the keyboard or mouse cable from the box
> >> you are trying to control, then plug it back in?
> >>
> > I tried to unplug USB cable which goes from switch to a computer and
> > plug it back, I tried to unplug keyboard and mouse from a switch and
> > plug it back. Nothing really happens. I got lights on keyboard when
> > it's connected to a switch and cursor sort of blinks on system
> > login, but I can't input my ID. If I connect to the system that was
> > already booted, I got black mouse cursor freezed up. Thanks
> >
> Interesting. There are usually various BIOS options you can adjust
> for USB ports (e.g. EHCI handoff). You could try playing around with
> them.
>
> Also, if you have both USB2 and USB3 ports, try both.
>
Yes, this is very interesting and very frustrating. I saw in BIOS EHCI
handoff ( btw, do you what it does? ) and I also can disable legacy
devices, except these two I didn't find any USB options in BIOS. FYI, I
tried live Ubuntu and live Mint xfce and the results are the same,
keyboard and mouse doesn't work. So I guess this is pure linux problem.
I mean if everything works in BIOS, it should work also and outside
them. Didn't try Windows yet. Thanks for the support.
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