Graphics card adjustment? where, how?

[kc7jty]

the manual for my new Envision monitor says the graphic card in the computer's maximum refresh rate shouldn't be over:
VESA 1280 x 1024 @ 75 Hz (they recommend 60Hz)

according to the info on the input signal (in the monitor's menu selection) it's:
H. frequency: 79.99
# # # # # # # # # # # # # #V. frequency: 75.03
# # # # # # # # # # # # # # # Pixel Clock: 135.04

do I need to adjust it down? How do I do that, *Duh*.

[KG6YTZ]

A rough guide to the basic procedure... #[Note: I'm assuming you're using a PC.] #Right-click anywhere in an empty area of your desktop. #This should pop up a short menu, in which one option should be "Properties." #Click that, and you should get a tabbed dialog titled "Display Properties." #Somewhere among those tabs, probably on the far right, should be a "Settings" tab. #You should be able to make the necessary adjustments from there.

Edited to add: #I should have noticed that you were also asking about the refresh rate. #This is the same thing as the "vertical frequency" - it is simply the number of frames per second. #Your monitor seems to be detecting a frequency/refresh rate of 75.03 Hz, so I'm going to assume that your display properties are already set for 75 Hz - already "Plug-and-Play" auto-detected by your computer, most likely - and that what the monitor is detecting is just a minor deviation from the stated refresh rate, just a case of the card's refresh being .03 Hz too high.

A mere three one-hundredths of a Hertz? #Thirty milliHertz? #I wouldn't worry about it.

[kc7jty]

Quote[/b] (KG6YTZ @ Dec. 10 2007,21:38)]A rough guide to the basic procedure... #[Note: I'm assuming you're using a PC.] #Right-click anywhere in an empty area of your desktop. #This should pop up a short menu, in which one option should be "Properties." #Click that, and you should get a tabbed dialog titled "Display Properties." #Somewhere among those tabs, probably on the far right, should be a "Settings" tab. #You should be able to make the necessary adjustments from there.
Yes, that worked for the 1280 x 1024 resolution adjustment, but I can't find how to adjust the refresh rate frequency.

The monitor manual says to see the graphic card user guide for instructions but I know of no such animal.
Is that a Dell (that's the PC I have) item?

[KG6YTZ]

Quote[/b] (kc7jty @ Dec. 10 2007,20:53)]Yes, that worked for the 1280 x 1024 resolution adjustment, but I can't find how to adjust the refresh rate frequency.
My oversight... #Under that "Settings" tab, once you click on it, there may be a button near the bottom which says "Advanced." #If you click that, you should see another dialog with a tab that says "Adapter." #That is where you would make such changes.

Quote[/b] ]The monitor manual says to see the graphic card user guide for instructions but I know of no such animal.
Is that a Dell (that's the PC I have) item?
If this was a complete store-bought PC, it's possible that Dell may not have included any manuals for individual components such as the video card. #On that same "Adapter" tab, you'll find the make and model of the video card. #You may need to hunt down the manual online.

[kc7jty]

Quote[/b] (KG6YTZ @ Dec. 10 2007,22:17)]Quote[/b] (kc7jty @ Dec. 10 2007,20:53)]Yes, that worked for the 1280 x 1024 resolution adjustment, but I can't find how to adjust the refresh rate frequency.
My oversight... #Under that "Settings" tab, once you click on it, there may be a button near the bottom which says "Advanced." #If you click that, you should see another dialog with a tab that says "Adapter." #That is where you would make such changes.

Quote[/b] ]The monitor manual says to see the graphic card user guide for instructions but I know of no such animal.
Is that a Dell (that's the PC I have) item?
If this was a complete store-bought PC, it's possible that Dell may not have included any manuals for individual components such as the video card. #On that same "Adapter" tab, you'll find the make and model of the video card. #You may need to hunt down the manual online.
BINGO! Thanks for your help my good man. I dropped the refresh rate down to 60 (which the monitor recommends for 1280 x 1024) Do I lose anything doing this, like response speed or something?
The screen looks the same.
jty

[WD8OQX]

It recommends a refresh rate of 60? MAN that is low, heck I can see flicker at 75 at times!

[K8ERV]

Quote[/b] (KG6YTZ @ Dec. 10 2007,21:38)]#Thirty milliHertz?
It does? I didn't feel a thing--

Tom K8ERV Montrose Co.

[KG6YTZ]

Quote[/b] (kc7jty @ Dec. 10 2007,21:47)]BINGO! Thanks for your help my good man. I dropped the refresh rate down to 60 (which the monitor recommends for 1280 x 1024) Do I lose anything doing this, like response speed or something?
The screen looks the same.
Is this an LCD monitor? If so, then no, you're not going to see any visible difference - certainly no flicker, at any rate, since flicker is a CRT thing and has to do with phosphor dot decay rates [electron beam lights up a phosphor and moves on, during which time the phosphor starts to fade out until it gets lit up again]. Response? Well, basically, the card would now be doing 60 frames per second instead of 75, so there may be a very slight difference when displaying certain kinds of full-motion video at fast frame rates, but in any other application... Again, no, you're not likely to see any difference if it's an LCD screen. [LCD's don't turn pixels on and off between sweeps - there's no flicker at any H/V rates.] On an old-fashioned CRT, yes, you're likely to notice a difference.

K8ERV: "It's mills that kills," dude... http://www.qrz.com/iB_html/non-cgi/emoticons/tounge.gif

[WA9SVD]

Quote[/b] (K8ERV @ Dec. 11 2007,09:05)]Quote[/b] (KG6YTZ @ Dec. 10 2007,21:38)] Thirty milliHertz?
It does? I didn't feel a thing--

Tom K8ERV Montrose Co.
HEY! You leave Milli out of this. I went to school with Ms. Hertz...

[kc7jty]

Quote[/b] (KG6YTZ @ Dec. 11 2007,23:15)]Quote[/b] (kc7jty @ Dec. 10 2007,21:47)]BINGO! Thanks for your help my good man. I dropped the refresh rate down to 60 (which the monitor recommends for 1280 x 1024) Do I lose anything doing this, like response speed or something?
The screen looks the same.
Is this an LCD monitor? #If so, then no, you're not going to see any visible difference - certainly no flicker, at any rate, since flicker is a CRT thing and has to do with phosphor dot decay rates [electron beam lights up a phosphor and moves on, during which time the phosphor starts to fade out until it gets lit up again]. #Response? #Well, basically, the card would now be doing 60 frames per second instead of 75, so there may be a very slight difference when displaying certain kinds of full-motion video at fast frame rates, but in any other application... #Again, no, you're not likely to see any difference if it's an LCD screen. #[LCD's don't turn pixels on and off between sweeps - there's no flicker at any H/V rates.] #On an old-fashioned CRT, yes, you're likely to notice a difference.

K8ERV: #"It's mills that kills," dude... #http://www.qrz.com/iB_html/non-cgi/emoticons/tounge.gif
yep LCD. I can't tell any difference from 75Hz down to 60.

[KB3NDN]

i think the H rate and V rate are a different measurement - its more like a range - i think the default for everything you hookup will set up to do 60. if it doesnt work you will know - i wouldnt worry about it.

[WD8OQX]

Yeah, LCD would be different - I am used to using CRT & just assumed the same here. - I gotta get with the times...

[KG6YTZ]

Quote[/b] (KB3NDN @ Dec. 13 2007,04:51)]i think the H rate and V rate are a different measurement - its more like a range - i think the default for everything you hookup will set up to do 60. if it doesnt work you will know - i wouldnt worry about it.
Horizontal rate is directly related to the resolution of the image - more pixels require more bandwidth, so a higher resolution will require a higher frequency [measured in kHz]. #This will be determined automatically by matching the capabilities of the card and the monitor together [as defined in their respective .INF files]; it will not be a user setting.

Vertical rate is simply the number of frames per second. #LCD's generally don't care much about it - they don't sweep an electron beam like a CRT does, and in an LCD's case, it just comes down to the monitor's ability to update the screen.

WD8OQX: Yeah, I just got this LCD a year ago m'self - I bought it because the old CRT went south on me, and as long as I was in the market for a new monitor anyway, I decided that I might as well go with something larger and more modern. #This LCD takes up FAR less of my limited desktop space than would any CRT of comparable screen size - CRT's are becoming somewhat scarce now anyway - and of course it uses far less power as well. #It's a bare-bones basic unit, bought for its low price, but it works well enough. #[Envision EN7410, in case you're wondering.]

Now, if only my motherboard's built-in video had enough memory to do the maximum screen resolution at 24-bit color... <sigh> #I make do with 1024x768 for now.