monitor clicking noise when changing display mode-Normal?

[anime]

I have diamond plus 91 and geforce 256 card..
This only happened with detonator 12.40 driver. With detonator 6.50 (ref driver) no clicking sound when changing display mode.

Anybody know what's causing it?
And if the noise bad for the monitor?

thanks

 

[ST4RCUTTER]

Yup. Mine does that too. Has been doing it for the last year w/o any problems. I think some monitors, especially the cheaper ones have relays built into them that switch between resolutions.

 

[anime]

weird thing is this always happen with detonator 1x.xx series--havent tried other series though..

 

[TravisBickle]

umm, I really doubt the change you write of is ANYTHING to do with your monitor.
some resolutions are equivalent to the monitor in workload, e.g.
640x480@ 85Hz
800x600@ 72Hz
1024x760@ 60Hz
if you change between these modes your monitor should not need to use the relays to change modes. try it.

 

[InFecTed]

I really don't think the GF driver has anything to do with it. More likely the refresh rates are set higher.
BTW not something to be afraid about, only problem is it just takes longer to switch display modes

 

[jamarno]

When the horizontal scan rate changes, the picture width naturally changes. The monitor can compensate for this somewhat, but if the rate changes too much, coils have to be switched in or out of the horizontal sweep circuit to compensate, and the most practical way to do this is with a mechanical relay. The frequencies where the coils are switched varies with the monitor, so it's possible that different video drivers use slightly different frequencies. Also, some relays are much noisier than others, but even expensive monitors still usually use relays.

 

[anime]

ahh I see thanks