question about monitor

dsj

Senior member
May 2, 2005
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I can't seem to adjust the gemoetry of the monitor so that it's like a perfect picture. It's always slanted and does not match the edge of the monitor. When I moved the image around with out changing the geometry, the sides changed from a convex curve to a concave curve. So at different parts of the physical screen the same geometry settings look different. How do you adjust the monitor so that it's perfect and exactly matches the physical edges?
 

JonnyBlaze

Diamond Member
May 24, 2001
3,114
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try reseting it back to defaults. sometimes its easier to start fresh. some crts have the problem that they cant be set perfect. when you adjust it again, use the zoom option if it has it. it does the height & width equally.

 

Ken90630

Golden Member
Mar 6, 2004
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I assume you're talking about a CRT & not an LCD, right?

Sometimes it can be tough to do what you're describing. But a lot depends on the quality of the monitor. I've used some cheapy monitors in the past that were utterly impossible to get the way you describe, but I've also used some better monitors that can get almost spot-on.

Curved face monitors (i.e., not flat screens) can be difficult, but true flat-screen CRTs are generally easier to get close to perfect, geometry-wise. Then there are pseudo flat screens -- screens that only have a flat glass over a curved tube. :roll: And you guessed it -- they can be difficult when it comes to achieving perfect geometry. You can also run into a phenomenon called "blooming," which is typically caused by a cheapy, weak power supply (in the monitor). Many inexpensive CRT monitors and televisions exhibit this problem, which manifests itself as 'wavy' or bent vertical lines. Manufacturers often use inadequate power supplies in CRT products to cut costs, and they feel they can get away with it 'cuz Average Joe is not a discerning viewer. If your CRT has blooming, no amount of adjustments are gonna fix it for good and the sides of your screen will look bent regardless. One thing you should try, however, if you haven't already, is adjusting the contrast. As I understand it, excessive contrast contributes to blooming & uneven geometry because it strains the power supply. Try dialing back the contrast a fair amount and then do your adjustments again & see if it helps. I can tell you that turning the contrast down on my CRT television cut the blooming by about half (if not more).

There is a test pattern for CRT computer monitors somewhere -- I had it bookmarked at one time, but seem to have deleted it. Maybe Google "CRT test pattern" or "computer monitor test pattern" or the like and see what comes up.

If you have anything but a high quality CRT, you might not be able to get the perfect geometry you're looking for. It depends on the brand, model, and the quality of the tube itself (& the monitor's power supply).

Gotta run and go tend to some Christmas goings-on, so good luck.
 

dsj

Senior member
May 2, 2005
521
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It's the samsung 793MB monitor. Is that a true flat screen or just a flat glass infront of a cruved surface?
 

dsj

Senior member
May 2, 2005
521
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The problem is that the image "curves" in at the corners of the monitor. Is there anyway to fix this?
 

Caebron

Member
Oct 31, 2005
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What GPU card are you using? There should be something under 'Advanced Settings' to fix this.
 

dsj

Senior member
May 2, 2005
521
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On the magictune it has these pin balance for the corners buttons that says unavailable when I clicked on them. But my monitor IS supported by the program. Has anyone else used this monitor before?
 

JimPhelpsMI

Golden Member
Oct 8, 2004
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Hi, Sounds like you have a pic that bulges out at the center of each side. The control with the symbol that bulges in at the center of each side is the one to use. It goes both ways. Give it a try. It's called PINCUSHION effect. Good Luck, Jim
 

dsj

Senior member
May 2, 2005
521
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Originally posted by: Caebron
What GPU card are you using? There should be something under 'Advanced Settings' to fix this.
Does nvidia have something like that? I still can't find it.
 

dsj

Senior member
May 2, 2005
521
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You mean buttons to tune the geometry? It only has the general pincushion and not the corner pinbalance. Samsung tech support said the magic tune buttons don't work because the video card driver already has that feature thus disabling the magic tune buttons automatically. He said to look for those in the video card programs.
 

diapickle

Golden Member
Dec 5, 2005
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How bad is it? Keep in mind that Trinitron and Diamontron tubes are IMPOSSIBLE to get perferct geometry. If you are looking for LCD geometry in a CRT don't waste your time it's not gonna happen.
 

diapickle

Golden Member
Dec 5, 2005
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All CRT tubes are curved, it's just a matter of degree. Yours look like the true flat/most recent type though, which means the curve is almost not noticable, and yes there's another layer of glass in front of the tube.

Originally posted by: dsj
It's the samsung 793MB monitor. Is that a true flat screen or just a flat glass infront of a cruved surface?

 

dsj

Senior member
May 2, 2005
521
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If you look at the corners (ie the start button) it's edges are not aligned wiht the corners of the physical screen. The edges are bent in.