OK, just to take your mind off of the recent server problems.........
Can anybody tackle this problem.......

I have 8 rigs here at home, all monitored thru a Hawking Technologies CS168 KVM switch.
The problem is that if a particular rig reboots when the KVM is not pointed at them, they revert to a 100hz monitor resolution, which doesn't happen to be supported by my HP LP2465 widescreen monitor. So then, whien I switch to that rig, I get a message saying that the signal is out of range. Then I have to go into the system settings and reset the video to 60hz. If I reboot when the KVM is pointed at that particular rig, all is fine, and it reverts to a 60 hz monitor resolution.
All of them are running NVIDIA video cards. Is there something I can hardwire with regedit so it will alway return to 60hz, or is this a problem with the video drivers??
Again...if the rig reboots while I am looking at it, all is well, and the resolution stays at 60hz, if the rig reboots and I am not looking at it, the resolution defaults ot 100hz. Can I change the default?

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"Time is simply the mechanism that keeps everything from happening all at once."

One word... VNC

Log in from your machine and manage the lot as if you were physically present. The 100Hz becomes irrelevant, and in fact any old cheapo VGA will do for them.

However, if you are only managing boinc projects, then you really *must* discover BoincView. You then won't need to go anywhere near the headless crunchers and do silly things like log in :-) - you can do everything you want and more with BoincView, and it works through SSH tunnels too - I can't sing its praises enough, I swear by it!

Andy.

One word... VNC

Log in from your machine and manage the lot as if you were physically present. The 100Hz becomes irrelevant, and in fact any old cheapo VGA will do for them.

However, if you are only managing boinc projects, then you really *must* discover BoincView. You then won't need to go anywhere near the headless crunchers and do silly things like log in :-) - you can do everything you want and more with BoincView, and it works through SSH tunnels too - I can't sing its praises enough, I swear by it!

Andy.

Thanx, and I might check it out, but that's not an answer to the problem at hand. Why do the rigs reboot at 60hz if I happen to be looking at them through the KVM when they reboot, and why do they reboot at 100hz if I am not? Is this a setting hardwired in the registry or elsewhere? Or something to do with the emulation that the KVM sends out when the monitor and mouse are occcupied elsewhere?

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"Time is simply the mechanism that keeps everything from happening all at once."

HI,

It could be a registerproblem as leftover from old gfx-drivers.
F.ex if you earlier had a CRT running at 100Hz - the driver then somehow falls back to that setting.
There's "Drivercleaners" out there that completely removes leftovers from previous driver installs. Google is your friend.

Alternativly you could look for another KVM switch that can handle reboots without having that PC set as 'active' on the KVM.

I have a cheap 4-port KVM "EMINE ExorView ME401". By connecting an optional poweradapter it can emulate KVM on all channels. It cost (here in Norway) around 60$ with cables, but without the optional poweradapter.

Edit\\ Link to KVM that I Have: http://www.emine.com.tw/product/EM-ME-1.htm
KVM switches has become quite 'intelligent' over the years compared to the analoge switches that I used 10 yrs ago ;-)

Kiva

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Greetings from Norway

Crunch3er & AK-V8 Inside

You've titled this thread 'resolution', but you keep giving us frequency values (aka 'Vertical refresh rate'). Which begs the question: what is the resolution of your monitor, and what resolution are you prepared to use on it for the purpose(s) and duration you're going to be viewing a particular PC/monitor combo?

Those of us who run computers stable for months on end will set the monitor up carefully @ best resolution/refresh for the occasions when we need to do concentrated work at the local screen, and BV/VNC/remote desktop/terminal services/PC Anywhere/Netmeeting/VPN (or anything else to hand) for everything else.

Your requirements are different, and they're not helped by using a widescreen monitor with a non-standard aspect ratio, at least as far as ordinary Windows drivers are concerned.

To avoid eyestrain, you will need to use the NVidia driver and the correct monitor .inf file for any computer that you use for 'real' work, like reading and posting on these boards ( ;-) ).

But if the others usually run 'headless', why not disable plug'n'play, and lie to them - tell them they're connected to a generic LCD of appropriate resolution (and yes, I do mean resolution here)? Experiment to find one that gives an image that is acceptable for your needs. Without monitor auto-detection, it should stay at that setting through reboots and all.

As you say you are using NVidia graphics card see this,
Refresh rate Override

Andy

..and if nothing else helps, you could always try PowerStrip.

Regards,
Simon.

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My bad, renaming the thread correctly. The problem is with what Windoze calls 'screen refresh rate' in the advanced monitor settins. And it will not hold the setting if the rig happens to boot whilst the KVM is not looking at it. Goes from 60hz to 100hz. This is on Win2k.

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"Time is simply the mechanism that keeps everything from happening all at once."

My bad, renaming the thread correctly. The problem is with what Windoze calls 'screen refresh rate' in the advanced monitor settins. And it will not hold the setting if the rig happens to boot whilst the KVM is not looking at it. Goes from 60hz to 100hz. This is on Win2k.

Refresh Force might be worth a look.

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"Living by the wisdom of computer science doesn't sound so bad after all. And unlike most advice, it's backed up by proofs." -- Algorithms to live by: The computer science of human decisions.

Hi msattler,

What happens if you install a standard video driver and run it in low res (640x480x256)? Will it still act up? While you're at it, try installing a generic driver for the monitor as well. See if that helps.

Regards,
Wander

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Hi

I've seen similar behaviour in my machine. It happens if my monitor is off when I power on or reboot my computer. I think display drivers/card asks the monitor what modes it supports and if the monitor is off or in your case KVM connected to other machine it picks some default value for refresh rate. I must say 100 Hz sounds pretty strange, I thought 60 Hz was supposed to be 'safe' default - something that doesn't brake anything.

When you say 'rig reboots' do you mean spontaneuos reboot or something you asked Windows to do? If it's spontaneous could you try to reboot the machine and keep KVM pointing to the machine? That way your settings should get saved.

I don't know much about NVIDIA's cards or drivers, got ATI here, but you could also try forcing the refresh rate in drivers. In ATI's drivers there are settings called 'Use DDC information' and 'Refresh rate override'. If you have anything similar you could try those.

Or just buy 8 LCD panels and put those on the wall or something. That would be sooooo cool :)

-Juha