On 27 November 2012 00:20, Peter Goggin <[email protected]> wrote:
> I use a KVM swith to control 1 wins#dows and 2 linux boxes. The KVM I was > using uses ps2 mouse and keyboard. The linux boxes worked perfectly, > although the winows box has only one ps2 port and so I needed a separate > usb mouse. Unfortunately my ps2 keyboar5d dies and so I have been trying to > use a usb kvm. This works perfectly with the windows box but for some > reason the linusx box does not recognise the monitor using the usb kvm. Is > there any way to set the linux box permanently default to my monitor which > is a Dell LCD with a resolution of 1920 x 1080? > > Regards > > > > Peter Goggin > > -- > ubuntu-au mailing list > [email protected] > https://lists.ubuntu.com/**mailman/listinfo/ubuntu-au<https://lists.ubuntu.com/mailman/listinfo/ubuntu-au> > I have been using a DVI/USB KVM (Aten CS1784) for years with Ubuntu without problems so the concept should be fine. The only thing I did find with mine was that with some peripheral devices preferred being used in the shared USB slot (at the front of my KVM box) as opposed to the actual keyboard/mouse usb slots (at the rear of the KVM). While that in itself doesn't help you, I did find that the main reason this happened was the the KVM device itself wouldn't always pass through the correct information for the peripherals to the computer systems. So the first thing I'd check is that the KVM is actually passing through the correct EDID information about the monitor to the Ubuntu system. There are plenty of guides out there to check and edit the EDID if needed, I did a quick search for "Ubuntu EDID" and got heaps of relevant results on the first page. For whatever reason some drivers are really heavily dependant on using this data to set up the screens correctly so that's probably where I'd start. The other thing to check is the model of the KVM itself, someone else out there on google may have already found a solution or work around. For these sorts of situations I just google "Ubuntu ModelNumberofDevice" and see what I can find. Let us know how it goes. -- Regards, Jared Norris https://wiki.ubuntu.com/JaredNorris
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