Mark Weaver spake the following on 4/24/2007 6:16 AM: > Christian Wahlgren wrote: >> On 4/23/07, Juan C. Valido >> <jvalidolnx at juanyjosefina.com> wrote: >>> On Mon, 2007-04-23 at 07:10 +0800, John Summerfield wrote: >>> > Mark Weaver wrote: >>> > > Hi All, >>> > > >>> > > Something that just has been annoying the daylights out of me for >>> the >>> > > past 9 months with no resolution in site. I've got a Hawking HKS >>> 104 4 >>> > > port KVM connecting my Linux workstation, 2 servers, and my wife's >>> > > windows workstation to one monitor, mouse, and keyboard. >>> > > >>> > > No matter how I toggle back and forth whether by keyboard or >>> directly on >>> > > the device once I come back to the linux desktop scroll wheel on >>> mouse >>> > > no longer functions. Except for a brief time while running CentOS >>> 4.4 >>> > > it's always been this way. I've googled until there were just no >>> more >>> > > places left on the internet and searched through CentOS archives >>> until >>> > > I'd read everything from balls to bones without finding any helpful >>> > > information. >>> > > >>> > > Does anyone have any ideas or thoughts on how a fella might resolve >>> > > this? When I restart the machine (Linux) the scroll mouse works >>> > > normally, that is until I toggle to the windows machine and back >>> again >>> > > or to one of the servers and back again. Then the mouse functions >>> like a >>> > > two button mouse not having a scroll wheel. I appear to be stuck >>> in KVM >>> > > hell with this. >>> > > >>> > >>> > I have problems, but not yours. >>> > >>> > 1. Replug the mouse? >>> > 2. Replug everything in the KVM? Sometimes mine (Laser junk) >>> requires this. >>> > 3. Different mouse? >>> >>> I've seen that before. I had to change my KVM. The newer Belkin and >>> Trendnet work. If you get a new one make sure it says that it's >>> compatible with Linux or Unix, I had the same problem with Solaris 10 >>> but not anymore... >> >> I've had the same problem with Belkin with PS/2 connections (erratic >> mouse movements after switching from Windows). But after a change to >> Aten KVM with USB kbd/mouse everything works as expected when >> switching between Windows and Linux boxes and with working scoll wheel >> on the mouse. >> > > yeah... the overall concensus is that a different KVM and possibly a > different mouse/keyboard will fix the problem, but since that is very > unlikely to happen I'm going to have to find a software/OS solution. > That's the biggest reason I'm now looking at what happens at boot time > to allow the mouse to work correctly and then breaks and doesn't > function after a KVM toggle back from Windows. > > Mark Different KVm's handle the switching and emulation differently, and I have found that it seems to be more of a bios issue than a software issue. I had an old server running Windows 2000 that behaved badly on the KVM. When the system was retired from Windows use and re-christened with Linux, the problem stayed. It has an Intel STL2 motherboard, so there won't be any bios updates for it. -- MailScanner is like deodorant... You hope everybody uses it, and you notice quickly if they don't!!!!