Blown Viewsonic?

For system help, all hardware / software topics NOTE: use Coders Corner for all coders topics.

Moderators: Krom, Grendel

Post Reply
User avatar
FireFox
DBB Ace
DBB Ace
Posts: 440
Joined: Sun Jun 03, 2001 2:01 am
Contact:

Blown Viewsonic?

Post by FireFox »

First my car decides to rip its velocity joint and now my Viewsonic P225f decided to give me the up yours. How much crap can happen to a person in a given day...

Anyways the problem is after an outing I returned to find the screen is just dead. Switched is off and on. Nothing. Unplugged it and let is stand for a while. Plugged in another power cord just for good measure and the power light went green for about 2secondes and switch over to the orange power safe light but it keeps flashing repeatedly. Faster than when the screen is in power safe mode. So my conclusion is something went because the screen is rather old 5years + and it was giving tell tell signs of something is wrong (1second blank outs and the dos boot res was totally curved inwards).

Ok seeing the screen isn't covered by warranty anymore my options is that I can take it to a local Electrical Appliance repair shop but I don't have any faith in these local jerks for timely nor proper service of my goods :roll: . (gave in an amp to get it fixed and had to go pick it up 2months later untouched GGRRRR).

So considering this and I don't want to spend to much money on an cause that might be lost either any suggestions on what I can do myself here to remedy this alternatively suggestions on an replacement screen. Something in the same size. I'm currently on an lend out of one of my office PC's 17\" LCD's and it takes getting used to working and gaming on it. It feels like there is a void on my desk 8) .

Thx
User avatar
Krom
DBB Database Master
DBB Database Master
Posts: 16138
Joined: Sun Nov 29, 1998 3:01 am
Location: Camping the energy center. BTW, did you know you can have up to 100 characters in this location box?
Contact:

Post by Krom »

Get a 19\" LCD. My own CRT is starting to show problems like flickering and momentary glitches in the picture and I have resigned myself to just wait for it to die then buy a LCD to replace it. It is just too late to buy CRTs anymore, almost nobody makes them and the quality too low on the ones that are still available. A good 19\" LCD is pretty cheap these days so it is well worth it, and by the time you are looking to replace that LCD a few years down the road something genuinely better than LCD should be on the market and affordable.
User avatar
FireFox
DBB Ace
DBB Ace
Posts: 440
Joined: Sun Jun 03, 2001 2:01 am
Contact:

Post by FireFox »

Any opinions on this LCD

LG LG1970HR 19 LCD Monitor 2ms 1280x1024 @ 75Hz Silver [LG1970HR]

I currently own and Nvidia 6600GT able to just manage 1280x1024 on most of my new games but I doubt on the latest releases on the market thou. Seeing that if you go LCD you need to try and run your games in its native resolution otherwise it looks crappy, 19\" is the intermediate step for me to go then. With an GFX rather soon down the line then too :P
User avatar
Krom
DBB Database Master
DBB Database Master
Posts: 16138
Joined: Sun Nov 29, 1998 3:01 am
Location: Camping the energy center. BTW, did you know you can have up to 100 characters in this location box?
Contact:

Post by Krom »

Ignore the 75 Hz part, all LCDs are 60 Hz and only 60 Hz. When driven at 75 Hz they just run at 60 Hz and drop the extra frames.
User avatar
WillyP
DBB Ace
DBB Ace
Posts: 461
Joined: Sat Feb 11, 2006 9:57 pm
Location: NH
Contact:

Post by WillyP »

I seem to remember reading somewhere that '2ms' is usually misleading also... I think it was the way that they measure, gray to gray, instead of color.

http://peripherals.about.com/od/compute ... ydefin.htm
User avatar
Grendel
3d Pro Master
3d Pro Master
Posts: 4390
Joined: Mon Oct 28, 2002 3:01 am
Location: Corvallis OR, USA

Post by Grendel »

ImageImage
nevri
DBB Cadet
DBB Cadet
Posts: 1
Joined: Mon Aug 27, 2007 7:41 pm
Location: iowa

LG monitor

Post by nevri »

Hello . This is my first post on this board . . .

I have the LG1970HR monitor . I got it on ebay about 6 months ago.
The powerpack was missing so i guessed what conector it would need from some adds.
It uses a strange conector for the powerpack, had to change it.
The powerpack might be the weak point , there where about 30 of them to bid on.
(BestBuys rejects)

Got a 5 amp powerpack , no problems.

After about a month got a stuck pixel , rubbed the screen with a tissue
to get more liquid about the pixel , repeted a few times.

The pixel problems gone now five months , works fine.

I play D3 on it about every day.

The back lighting shows sometimes.

It can look a bit strange if a video stream stops or stutters.

The two milisecond thing with the backlight gets out of sync with a bad stream.

I run it on 75hz , 1280x960 for descent.

There is something to the jumpiness thing.

It looks fine if your minimum frame rate is above 60.

I'm not going back to a crt unless its free.

This is the only lcd i've owned.

geesh i sound pedantic , but i hope this helps.
User avatar
Krom
DBB Database Master
DBB Database Master
Posts: 16138
Joined: Sun Nov 29, 1998 3:01 am
Location: Camping the energy center. BTW, did you know you can have up to 100 characters in this location box?
Contact:

Post by Krom »

Change your refresh rate to 60 Hz and see if it improves, no LCD really runs at 75 Hz anyway (they just drop every 5th frame, 75 Hz 5:4 = 60 Hz).
User avatar
heftig
DBB Ace
DBB Ace
Posts: 138
Joined: Mon Jun 05, 2006 9:55 pm
Location: Germany
Contact:

Post by heftig »

Strangely, when I still had two 1280x1024 TFTs (both DVI), using 60Hz caused horrible flickering in certain situations, such as the performance meters (not the graphs) of the Task Manager. 75Hz fixed it.
User avatar
AceCombat
Owned by Timex
Owned by Timex
Posts: 6516
Joined: Sat Apr 12, 2003 2:01 am
Location: Oakwood, GA

Post by AceCombat »

whats this im hearing about the newest monitors and TV are going to be running @ 120Hz?
User avatar
FireFox
DBB Ace
DBB Ace
Posts: 440
Joined: Sun Jun 03, 2001 2:01 am
Contact:

Post by FireFox »

k I just need clarification on something here.

I've googled this a bit and came to this:

32bit and 24bit color depth both gives the same amount of color (16,777,216). So the fact that a LCD is limited to 16.7million colors wouldn't have any impact on your viewing experience? So 16bit would produce less color and my first thoughts of 16.7million color = 16bit was obviously totally wrong.

I do recall someone mentioning that their LCD can't display 32bit color unless it's hooked via DVI??

I'm just wondering is this true about all LCD's or just his in particular, unfortunately he didn't state which LCD he has.

I've decided to go with the LG L1953T-BF for now. Fits the budget and current needs. Don't need anything fancy just something to run/display my games & DVD's properly.
User avatar
Krom
DBB Database Master
DBB Database Master
Posts: 16138
Joined: Sun Nov 29, 1998 3:01 am
Location: Camping the energy center. BTW, did you know you can have up to 100 characters in this location box?
Contact:

Post by Krom »

16 bit color = 2^16 colors = 65,536 shades
24 bit color = 16,777,216 shades
32 bit color = 4,294,967,296 shades

But all of that only really applies to video cards and rendering, if you want to know about how well a monitor will display color, you need to find out its color gamut: http://en.wikipedia.org/wiki/Gamut

Even a monitor that claims it can display \"true 32 bit color\" will likely be displaying far less color than the human eye can perceive. Also some types of LCD panels have a very fast response time at the cost of being able to display fewer colors. Often they will have a smaller gamut and also be unable to display more than 50,000 shades of color or so even if the computer is sending 16.7 million shades to the screen.
User avatar
heftig
DBB Ace
DBB Ace
Posts: 138
Joined: Mon Jun 05, 2006 9:55 pm
Location: Germany
Contact:

Post by heftig »

Most TN panels only have 18 bit (262,144 colors) accuracy. Dithering or FRC (frame rate control) can be used to mitigate the effects of this. However, these methods introduce other visual problems.

Other panel types typically have 24 bit accuracy. Some even go beyond.
Post Reply