[Golitzbt]

I just received my new 52HM84 DLP and was anxious to hook up the HTPC (ATI 9600) via DVI to HDMI. To my surprise, using a 1280x720 resolution, the PQ looked terrible. Text is extremely blurry, a bit better in large font, and there is a fair amount of overscan. And for some reason, Full mode is not available when the HTPC is connected. Does anyone have any experience with this set/powerstrip? Or know how to access the service menu to possibly make some adjustments?


Thanks -


Brian

 

[Golitzbt]

Any suggestions?


Thanks!

 

[elmalloc]

I hope someone replies, I spent $130 on an hdmi to dvi connector, and a dvi 2M cable in ohpes I can get HTPC to work with it...

 

[elmalloc]

isnt the native res of a DLP 768 and not 720?

 

[Golitzbt]

I am not familiar with all DLP's, but this one's native res is 1280x720.

 

[elmalloc]

In Home theater spot, they spoke about the Tosh DLPs having ghosting problems when doing DVI to HDMI...I seriously hope we can get this working....

 

[Karyk]

Quote:

Originally posted by Golitzbt I just received my new 52HM84 DLP and was anxious to hook up the HTPC (ATI 9600) via DVI to HDMI. To my surprise, using a 1280x720 resolution, the PQ looked terrible. Text is extremely blurry, a bit better in large font, and there is a fair amount of overscan. And for some reason, Full mode is not available when the HTPC is connected. Does anyone have any experience with this set/powerstrip? Or know how to access the service menu to possibly make some adjustments?

I can't tell you squat about that particular set, but text is often blury at higher resolutions like 720. Although you lose a lot of screen real estate, try a lower resolution like 480, and use 720 for video sources only (where you will get a better picture than lower resoultions).


As far as I know, there's no reason you can't use Powerstrip with a DVI device, and that's probably what you need. It will allow you to pick a resolution with less overscan (for example, I use 1000i rather than 1080i) and make minor adjustments to the overscan. I use the test paterns on this site to adjust the overscan with Powerstrip.

http://www.tigerdave.com/wgl/


I would not try to adjust your set. That would probably make it not work for any other type of input.

 

[elmalloc]

My frirend has a samsung and he said he just set his to 1280x720 and his looks perfect. Looks like samsung is the way to go (too late for me) if you want 1x1 pixel mapping easly. I'm going to play with it tonght and let you guys know on what I find, I have a toshiba 46HM84 DLP.


If I can't get the text to be readable at 720, I iwll be dissatisfied, my friend said with cleartype fonts on his samsung is beautiful.


Also, regarding video essentials/avia using an HTPC, if we calibrate with an HTPC using video essentials - how do we calibrate the video for all inputs? Aren't the settings only saved for the HDMI input and not hte other component inputs (or cable)?


-ELmO

 

[Karyk]

Quote:

Originally posted by elmalloc Also, regarding video essentials/avia using an HTPC, if we calibrate with an HTPC using video essentials - how do we calibrate the video for all inputs? Aren't the settings only saved for the HDMI input and not hte other component inputs (or cable)?

That's dependent on the set, but should be easy to determine. If the settings are the same for every input after you change one, then your set doesn't remember individual settings (which is very bad). Different devices will likely require different settings.

 

[lorddcd]

No luck so far. I know a Samsung had the same problem which was corrected by changing the picture size setting. Unfortunately at 720p this set doesn't have any picture size options available to see if it can be corrected.


I'm as bummed about this as you. Hopefully someone will find a workaround.

 

[elmalloc]

Areyou guys using power strip to adjust the resolution?


I know the Toshiba saves different settings for each input, THAT's my problem. If I am calibrating for the HDMI input, it won't have any settings saved for the component inputs - right? The settings aren't supposed to be the same...how do we calibrate the VIDEO for other inputs?


-ELmO

 

[salavs]

I don't know about the newer DLP models, but if I recall correctly, the older CRT models used to save by "input type", i.e. 480i/p vs. 1080i etc.


I believe there was a posting by Eliab over at ***************.com in the toshiba forums that described how Toshiba sets saved their settings.

 

[elmalloc]

Regardless, since it saves different settings for diffrent SOMETHING, how do you calibrate for all SOMETHINGS? The DVD player is connected via, let's say, component 480p. How do you get the set to calibrate for 480i, 720p, etc?


-ELmO

 

[elmalloc]

well i tried to hook up my PC (radeon 9700 all in wonder) with DVI to HDMI on the set. The first timE windows came up, i logged in, resolutoin was at 800x600 (overscanning) looked bad, slight ghosting. Tried to change th resolution via powerstrip, dont have a clue - rebooted, BIOS boots up but windows login does ntos how.



Have togo behind PC and switch cable to DVI-VGA monitor, log back in, fiddle with resolution, switch cbales and reboot - PC again will not show windos login.


Now I'm back to "factory settings" on my PC for powestrip, and my motherboard is blinking a blue light the entire time. It seems I have managed to smoehow F up my PC by doing htis. It blinks this blue light (the icon is a light bulb on the case, the mobo is an abit a7n8x deluxe) - even while booting up at the BIOS. IT's very annoying..I have no clue what I should do next...F toshiba if this thing can't handle 1280x720..


-ELmO

 

[elmalloc]

I hope it's my idiocy that I can't get 1280x720 to even load up on the toshiba. I can't return it, I got it from onecall.com. It's too bad, the set is marvelous otherwise. I was looking forward to using my PC on it! WOuld have saved a lot of room by taknig out my computer desk and clunky 19" CRT.


-ELmO

 

[Karyk]

Quote:

Originally posted by elmalloc I hope it's my idiocy that I can't get 1280x720 to even load up on the toshiba. I can't return it, I got it from onecall.com. It's too bad, the set is marvelous otherwise. I was looking forward to using my PC on it! WOuld have saved a lot of room by taknig out my computer desk and clunky 19" CRT. -ELmO

I haven't followed this for a few months, but DVI on certain Toshibas (mainly CRT RPTVs) was problematic at anything over basic 640x480 resolutions. If you have a CRT based Toshiba, you're probably better off with VGA/Transcoder to component.


I haven't noted whether this carries over to other Toshibas.

 

[elmalloc]

DLP set. Thanks. I have a 9700 AIW, which has a component output dongle in addition to the DVI (to VGA to my monitor). I will try the damn component output. I was trying ot get away form it, because in other threads they were syaing the PQ is a "2/10" compared toa DVI "10/10"...

-ELmO

 

[elmalloc]

PS - I can ge tinto safe mode with the TV, it outputs 800x600 at "default hz". If I have the set at 640x480 it works too (in safe mode). If I restart the machine, windows won't show up on the TV (I can't get windows to load on the TV at any resolution).


I beleive hte frequency (hz) and resolutoin isn't setting correclty in normal windows boot up.


Why does normal windows boot up not load on the TV, but safe mode at800x600 (default hz) load?

-ELmO

 

[vidkidd]

Elmalloc... You may want to try an NVidia based card. I've had the best luck with a NVidia 5900XT on my GWIII. There are a lot of notes in the later posts of the GWII and IV Tweakers thread that may apply.


Dialing in a 720P resolution is a task, but not unattainable. If the image is so "blurry" perhaps the signals are being internally upgraded to 1080i and then doen to 720P.


Attached is a pattern you should use as a desktop pattern. Set it to tile. If your Horizontal or Vertical timings are off, you will see a banding effect. The greater it is off, the more bandings their are. I'd be interested to hear how it looks.


If there are vertical bars(up.down), you will need to increase or decrease your Horizontal front/back porch accordingy. If one is set to 183 and the other is 88, I'll pick a similar number in the middle for both like 111. Then I'll work up by 10's, like 122 if that makes it have less bars. Then when I get pattern gets close to perfection, I will start changing the FP by the ones and perhaps only on the Front Porch or the Back porch. When it is almost there and you get a little Fuzz, this is where you will adjust the Vertical Frequency first by .1 then by .01 to dial it in. Now this was my trick on a GWIII and the Tosh may be different.


Thx,

Vidkidd

 

[salavs]

Quote:

Originally posted by elmalloc Regardless, since it saves different settings for diffrent SOMETHING, how do you calibrate for all SOMETHINGS? The DVD player is connected via, let's say, component 480p. How do you get the set to calibrate for 480i, 720p, etc?

well, my initial thinking was that you could "powerstrip" different timings to your set and recalibrate each time (all on the same input). this is of course assuming that input doesn't matter, and it's only the timing that matters (i may not be 100% accurate here).


however, it seems that with the difficulty in getting different resolutions/timing working on the set, that may not be an option.