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тАО11-02-2004 02:01 AM
тАО11-02-2004 02:01 AM
HP 2025 monitor with DECwindows
1)There's lot of video noise-rippling on the vertical edges of the screen image and windows, and in most background patterns.
2) The monitors take what seems like 5 or more seconds to "wake up" after the screen has blanked from inactivity.
I've been able to adjust out some of the video noise using the monitor's setup buttons but it's still quite noticeable.
I also set up DECW$PRIVATE_SERVER_SETUP.COM to use the device's native 1600x1200 display size, but this doesn't seem to make much difference either.
I haven't tried playing with refresh rates, though I know the native rate for 1600x1200 on this monitor is 75.
Any tips for further reducing the video noise?
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тАО11-02-2004 02:23 AM
тАО11-02-2004 02:23 AM
Re: HP 2025 monitor with DECwindows
About the second problem - we have some old non-HP monitors here that 'wake up' very slowly, too.
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тАО11-02-2004 02:56 AM
тАО11-02-2004 02:56 AM
Re: HP 2025 monitor with DECwindows
I can't rule out cables at this point. I've noticed that the monitors I have on my desk (different model - TFT8030 and different controller - ELSA Gloria) and others around our site work better with some cable types than with others but I've never been sure what the difference was.
Funny how none of them seem to show this kind of problem when the also-connected Windoze or Unix box is selected via the monitor's buttons.
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тАО11-02-2004 08:39 AM
тАО11-02-2004 08:39 AM
Re: HP 2025 monitor with DECwindows
Try refresh rate of 85, also try different pixel depths. The monitor should have an "optimise display" button.
You may also find the quality of the display changes depending on your background pattern. Try changing it to a plain colour.
Changing display attributes is one area where OpenVMS is WAY behind windows :-(
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тАО11-02-2004 08:47 AM
тАО11-02-2004 08:47 AM
Re: HP 2025 monitor with DECwindows
one very important factor is cable length. Make sure your video cable is not longer than necessary. We have a few monitors around here that we need to drive about twice the "normal" cable length and the display quality is much worse than on the other screens.
Also hitting the "right" refresh rate is important. Since the monitor works fine with Windows check the setting there and adjust the DECwindows parameters accordingly.
Greetings, Martin
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тАО11-02-2004 07:44 PM
тАО11-02-2004 07:44 PM
Re: HP 2025 monitor with DECwindows
Please try these actions:
1) Push the AUTO-ADJUST button on the front panel once
2) Two controls in the on-screen display can be adjusted to improve image performance: Clock and Clock Phase. Use these controls only when the auto adjust function does not provide a satisfactory image.
Clock - Increase/decrease the value to minimize any vertical bars or stripes visible on the screen background.
Clock Phase - Increase/decrease the value to minimize video distortion or video jitter
Hope this help
Michel
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тАО11-03-2004 12:24 AM
тАО11-03-2004 12:24 AM
Re: HP 2025 monitor with DECwindows
Thanks, all!
Further suggestions still welcome!