Allegedly, on or about 28 March 2014, Claude Jones sent: If it's analogue video signals, the first thing I'd try would be to swap a video cable, there may be a bad shield. Also, SVGA into a LCD monitor can end up with the video output pixels not being aligned with the monitor's pixels (try an auto reset option on the monitor). LCDs work best with digital video, with the video output set at the exact same resolution as the monitor. -- [tim@localhost ~]$ uname -rsvp Linux 3.9.10-100.fc17.x86_64 #1 SMP Sun Jul 14 01:31:27 UTC 2013 x86_64 All mail to my mailbox is automatically deleted, there is no point trying to privately email me, I will only read messages posted to the public lists. George Orwell's '1984' was supposed to be a warning against tyranny, not a set of instructions for supposedly democratic governments.

On 03/30/14 10:07, Claude Jones wrote: <<>> giving thought to Tim's suggestion and results of your show, i will make a suggestion. use high quality video cables. cables that are 100% shielded. even better yet, double shielded cables. while you say you swapped cables and had 95% clearing, you do not say if cables where on input or output side of kvm switch. 25 - 30 years ago, i bought a belkin omni view kvm switch, which worked great for many years, then i decided to go headless and use porting to 'see' other boxes. for a long time, switch sat collecting dust until someone asked it they could borrow it to run a setup. as it turned out, they also had video trouble. when i went to view problem, and first saw it, i knew what it was. i had seen similar during my audio/video days, which i described as 'slight video tearing', aka, '60 cycle video hum', cause by bad cable shielding. as a quick test for problem, because borrower did not have any spare video cables, high quality or otherwise, as i had used, borrower used what came with switch. we wrapped 2 of the video cables, video in from one box and video out to monitor, with strips of aluminum foil. video cleared. next day, he bought 4 high quality video cables from a local electronics supply, installed, no video tearing. because such proved poor quality of shielding of supplied cables, i would suggest you might try foil trick. if problems clears, i suggest you get some high quality video cables. and i do not suggest getting them from your local asian branded store. there is very little that that company has of high quality. if iogear is aware of problem, and i imagine they are, when you contact them, ask if they have video cables with high quality shielding. you may be able to get good cable from them. they may cost you more than from a good local supplier. your option. much luck. -- peace out. in a world with out fences, who needs gates. tc.hago. g .

Allegedly, on or about 30 March 2014, g sent: Some /alleged/ video cables are just unshielded wires bundled with a foil wrap, rather than being individual coaxial cables per signal. It's a wonder that they ever work right. -- [tim@localhost ~]$ uname -rsvp Linux 3.9.10-100.fc17.x86_64 #1 SMP Sun Jul 14 01:31:27 UTC 2013 x86_64 All mail to my mailbox is automatically deleted, there is no point trying to privately email me, I will only read messages posted to the public lists. George Orwell's '1984' was supposed to be a warning against tyranny, not a set of instructions for supposedly democratic governments.

On 03/31/14 03:28, Tim wrote: sounds like you have cut open some "shanty" store cables also. i will never be amazed by what they do. i pick up on their 'tricks' a few years after they opened their second store here. the where using same electronic pcb thru several diff models and across several years. only thing diff were the cases and an increase in price. they also hoot gold contacts cables over their nickel/tin contacts, while all quality brands only sell gold contacts. they should change their last name to "shaft". -- peace out. in a world with out fences, who needs gates. tc.hago. g .

On 03/31/14 06:34, Claude Jones wrote: <<>> ok. now you did bring to mind something that the "shaft" sells and is worth buying from them. powdered core chokes. they come in 2 basic types, solid and split. what you should try is the split type. it is 2 halves that are held together by a plastic snap housing. for both kvm switch and signal detector, run wires for thru core halves, snap case together. if a single pass does not work try 2 or more. also, be aware, radiated and rf signal interference can also come thru power supply wiring. with what you say about mouse and keyboard, wire or wireless? btw, with all this radiated interference you are having, have you ever turn off lights and looked at a mirror to see if you have a glow about you? ((GBWG)) -- peace out. in a world with out fences, who needs gates. tc.hago. g .

On 03/31/2014 09:14 AM, Claude Jones wrote: I'd call it solved: bad hardware.