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Thread ID: 24267 2002-09-07 03:03:00 Compaq notebook with external monitor wotz (335) Press F1
Post ID Timestamp Content User
77298 2002-09-07 03:03:00 I have a compaq pressario 1200, K6 of about 45mh (from memory), win98se.

When I plug in an external monitor or video projector the image is not steady. It seems to 'shimmer' from side to side. The device manager has a standard monitor installed, which is all that should be needed.

Is there any hope for improvement?
wotz (335)
77299 2002-09-07 03:06:00 OK my proof reading was a bit off. 450mhz processor. Oops its a dodgy key. wotz (335)
77300 2002-09-07 06:52:00 I had a Compaq laptop of a similar vintage once, and it was fine on an external monitor and a projector.

Is the refresh rate set to a suitable value for the screen? I have seen this happen when incompatable values are used.
godfather (25)
77301 2002-09-07 06:53:00 The projector picks up the refresh rate. It also doesn't work well on my desktop monitor wotz (335)
77302 2002-09-07 07:07:00 > The projector picks up the refresh rate. It also
> doesn't work well on my desktop monitor

Well, the projector uses LCD technology which is usually dependent on a matching refresh rate, it takes what the PC gives it, it doesnt "pick it up"?

If the PC external monitor rate is incorrect you can get this effect, both on an external monitor AND a projector.

Well, put it this way. What is your external monitor refresh rate setting??
godfather (25)
77303 2002-09-07 07:14:00 uummmm looks like it is picking up 38.8k - 60.2Hz Thats all I can find. From memory the notebook is putting out 75, soooooooo how do I change it? wotz (335)
77304 2002-09-07 07:24:00 > uummmm looks like it is picking up 38.8k - 60.2Hz
> Thats all I can find. From memory the notebook
> tebook is putting out 75, soooooooo how do I change
> it?


Well, if the monitor is reporting 60.2 Hz, then that is what the notebook is "putting out". 60.2 is astray, normally 60, 65. 72 etc

The monitor can't change it. You need to right-click on the desktop, select properties and do it through stiings (probably advanced?) I dont have anything but XP here now, and cant remember back to 98.

It should be self explanatory however, and look up the manual on the projector to see what refresh rate it wants.
godfather (25)
77305 2002-09-07 10:12:00 I thought it was the monitor driver that controlled the refresh rate. Until I got my new monitor I'm half sure I couldn't change my refresh rate as the old monitor's drivers didn't have that option. Or if it did, I couldn't set it any higher for an improvement (my memory's a bit dim on this now).

To change it, right click on the desktop, choose Properties>Adaptor and there's a dropdown box there to select what rate you want. I can't remember the Adaptor tab being there prior to this monitor.
Susan B (19)
77306 2002-09-07 10:28:00 There is no option to change the refresh rate. Guess its a fixed one on this notebook. I'll have to use another notebook. Its a bit hard to read a spreadsheet (3 of us) when the numbers don't keep still on the projector. Thanks for your help guys. Ok guyettes too wotz (335)
77307 2002-09-07 10:44:00 Can you not find some drivers on the monitor's website? You never know, you might get lucky.

Oh, and I'm happy to be called a guy. It's gender neutral in certain circumstances in my opinion. :D
Susan B (19)
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