[bigtube1]

Hi, I'm using an HTPC with an ATI Radeon 9700. Connection to Barco BD 808s is through port 3. I just use the ATI software to run at [email protected] Things look pretty good. Wondering if this is as good as it gets or if I can squeak more out of it using Powerstrip or other software programs.


Is there another 808s user out there that has found a "sweetspot" resolution?


Any other tips with the 808s and HTPC's?


Thanks, Brian

 

[Chuchuf]

1280 x 720P works very well.


Terry

 

[zicronix]

I have a BG808s and using a HTPC with a GeForce3 Ti-200 64MB running [email protected]


Works yust fine for me, but i have only had the pj for 1 week, and havent had the time to mount it permanently in the ceiling...

 

[EC]

Quote:

Originally posted by Chuchuf 1280 x 720P works very well. Terry

Thats what I run for both HD Sat and scaled DVD. Although I have a BG808s

 

[RolfHult]

Quote:

Originally posted by zicronix I have a BG808s and using a HTPC with a GeForce3 Ti-200 64MB running [email protected]

That's about 167Mhz video bandwidth...waaay too much for the 808s is 75Mhz!!

Try running [email protected] (or 60Hz, but even that's over the 75Hz limit).

 

[audiman]

1080X720 at 71.924 is exactly 1.5 X native DVD and 3x fps.


Try it, u should reduce stutter.

 

[JeffY]

Are we talking 16:9 screen?

 

[mrmike]

Thought the 808s would do 120MHz? I know my G800 specs 60MHz bandwidth.


-MM

 

[secstate]

According to the c r t cinema projector specs Barco Data 808, Graphics 808, and Data 808s all have 75 MHz bandwidth. The Graphics 808s has 120 MHz.


secstate


Edit: I just noticed that the same page says the Barco 1208s has 7" tubes so maybe we should take their specs with a grain of salt....

 

[Bjorn Born]

I use [email protected] and [email protected] on my bg808 (non s, 16:9).

I know I'm pushing the envelope here, but a clean duplication of resolution gives me a more movielike image than, say [email protected]

Tried lots of resolutions, but I'm sticking with these.

 

[zicronix]

Hmmm, think i'm used to the standard CRT monitor, that doesent show anything abowe it's specs...


how do you calculate the bandwidth?



what will [email protected] be? or 70Hz ?


i wan't to use a 4:3 screen, as i will use the Pj for a lot of 4:3 stuff

 

[RolfHult]

1280 x 1024 x 60 x 1,5 ~ 118Mhz

 

[zicronix]

rolfHult: ok, what is the "1,5" for?

 

[Squinty]

In bandwidth calculations you have to take into account the "front porch" and "back porch" for both the horizontal and vertical resolutions. That's what the 1.5 is for: it's a rough estimator of the actual resolution with porches. I think that's a little high, and should actually be about 1.3.

 

[bigtube1]

Thanks for the suggestions. I'm still a little confused about the resolution numbers game. Seems there are diferring opinions on what's best. Using Powerstrip I tried some of the suggested res's and few locked on my machine. Don't know why. I can get 1600x1200 @54 to lock and it looks great on the desctop and DVDs too.


It would seem the "higher the better" with this thing but for reasons I don't fully understand that may not be the case. Anyway, some of the higher #'s seem to work and look good so I have to go with that for now. Still I wonder if I'm doing it right.


If someone reads this in the future and is experienced in tweaking the BD808s with a Radeon 9700 and Powerstrip, please post here or PM your phone or email to me. If you wouldn't mind a little personal guidance that is.


Thanks, Brian

 

[RolfHult]

Quote:

Originally posted by Squinty In bandwidth calculations you have to take into account the "front porch" and "back porch" for both the horizontal and vertical resolutions. That's what the 1.5 is for: it's a rough estimator of the actual resolution with porches. I think that's a little high, and should actually be about 1.3.

Checked this in powerstrip yesterday, and found that using 1.35 was the right number here

 

[usabrian]

Quote:

It would seem the "higher the better" with this thing but for reasons I don't fully understand that may not be the case.

Actually, lower is better....or at least medium is better since there is less stress on electronics and no overlaps. Very sharp at 540p-768p for me.


Brian

 

[bigtube1]

OK, no overlap, I get that now. Less stress is good for everyone.


Could you be more specific on your resolution? ?? x 540p-768p @ ??hz


Chuchuf mentioned 1280 x 720p. At what frequency?


Isn't there a "string" you can copy and paste into Powerstrip that would allow me to duplicate someones settings. That would be great if someone has a good string to use with a Barco 808s.

 

[usabrian]

At various points I have used 960X540, 1080X540, 1280X720, 1280X768 at 60hz and 72hz. The latter typically being best for dvd and I have settled in on 1280X720 whereas I also like 1080X540 a lot. Just go to advanced settings in power strip and custom resolutions to define new ones.


Brian