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Custom Resolution with G33 chipset & old Sanyo projector

2115 Views 10 Replies 2 Participants Last post by bspachman, Oct 16, 2007

bspachman

Discussion Starter · Sep 23, 2007

I need a little help getting my new integrated Intel graphics chip using the full resolution of my much older projector.

Everything used to work fine under Windows 2000 with an old Radeon Card and Powerstrip. I recently upgraded my HTPC to a new motherboard with the integrated G33 chipset and (at the same time) installed Vista.

Vista is fully patched, and I believe I am up-to-date on my video driver version (Intel GMA 7.14.10.1255).

However, Powerstrip 3.75 doesn't want to add my custom resolution, and for whatever reason, I'm unable to manually define it using Powerstrip.

I've stumbled on all of these posts detailing registry hacking to create an accessible custom resolution, but I seem to have failed--the resolution has not taken.

Any assistance will be greatly appreciated!

Here is my (hopefully) relevant information:

Sanyo PLV-60HT projector (old powerstrip settings):

In Powerstrip:

----Pixel Clock: 116.052 MHz

----Horiz:

--------Scan Rate 63.625 KHz

--------Active 1360

--------Front Porch 104

--------Sync Width 144

--------Back Porch 216

--------Total 1824

----Vert:

--------Refresh Rate 60.024 Hz

--------Active 768

--------Front Porch 129

--------Sync 3

--------Back Porch 160

--------Total 1060

On the PLV-60:

----Fine Sync 35

----Total Dots 1824

----Horiz 364

----Vert 167

----Total Lines 1060

----Clamp 0

----Disp Area H 1360

----Disp Area V 768

-----------------------------------------

In Powerstrip 3.75, exporting the custom resolution above gives me:

PowerStrip timing parameters:

1360x768=1360,104,144,216,768,129,3,160,116006,1

Generic timing details for 1360x768:

HFP=104 HSW=144 HBP=216 kHz=64 VFP=129 VSW=3 VBP=160 Hz=60

VESA detailed timing:

PClk=116006.00 H.Active=1360 H.Blank=464 H.Offset=88 HSW=144 V.Active=768 V.Blank=292 V.Offset=129 VSW=3

Linux modeline parameters:

"1360x768" 116.006 1360 1464 1608 1824 768 897 900 1060 +hsync +vsync

-------------------------------------------

I believe that all of that converts to:

DTD:

51,2D,50,D0,51,00,24,31,68,90,14,00,00,00,00,00,00,1E

------------------------------------------

Editing the INF file and trying to install the driver again did not work. The machine keeps hanging on the installation and has to be force quit.

I ended up running 'regedit' and searching the entire registry for 'DTD_1'. Every time I found it, I made sure it contained the DTD above.

What advice can folks give?

Thanks,

Brad

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archibael

· #2 · Sep 24, 2007

Quote:
Originally Posted by bspachman /forum/post/11705187

I need a little help getting my new integrated Intel graphics chip using the full resolution of my much older projector.

Everything used to work fine under Windows 2000 with an old Radeon Card and Powerstrip. I recently upgraded my HTPC to a new motherboard with the integrated G33 chipset and (at the same time) installed Vista.

Vista is fully patched, and I believe I am up-to-date on my video driver version (Intel GMA 7.14.10.1255).

However, Powerstrip 3.75 doesn't want to add my custom resolution, and for whatever reason, I'm unable to manually define it using Powerstrip.

I've stumbled on all of these posts detailing registry hacking to create an accessible custom resolution, but I seem to have failed--the resolution has not taken.

Any assistance will be greatly appreciated!

Here is my (hopefully) relevant information:

Sanyo PLV-60HT projector (old powerstrip settings):

In Powerstrip:

----Pixel Clock: 116.052 MHz

----Horiz:

--------Scan Rate 63.625 KHz

--------Active 1360

--------Front Porch 104

--------Sync Width 144

--------Back Porch 216

--------Total 1824

----Vert:

--------Refresh Rate 60.024 Hz

--------Active 768

--------Front Porch 129

--------Sync 3

--------Back Porch 160

--------Total 1060

On the PLV-60:

----Fine Sync 35

----Total Dots 1824

----Horiz 364

----Vert 167

----Total Lines 1060

----Clamp 0

----Disp Area H 1360

----Disp Area V 768

-----------------------------------------

In Powerstrip 3.75, exporting the custom resolution above gives me:

PowerStrip timing parameters:

1360x768=1360,104,144,216,768,129,3,160,116006,1

Generic timing details for 1360x768:

HFP=104 HSW=144 HBP=216 kHz=64 VFP=129 VSW=3 VBP=160 Hz=60

VESA detailed timing:

PClk=116006.00 H.Active=1360 H.Blank=464 H.Offset=88 HSW=144 V.Active=768 V.Blank=292 V.Offset=129 VSW=3

Linux modeline parameters:

"1360x768" 116.006 1360 1464 1608 1824 768 897 900 1060 +hsync +vsync

-------------------------------------------

I believe that all of that converts to:

DTD:

51,2D,50,D0,51,00,24,31,68,90,14,00,00,00,00,00,00,1E

------------------------------------------

Editing the INF file and trying to install the driver again did not work. The machine keeps hanging on the installation and has to be force quit.

I ended up running 'regedit' and searching the entire registry for 'DTD_1'. Every time I found it, I made sure it contained the DTD above.

What advice can folks give?

Thanks,

Brad

Need to add a ",37,01" to the end. No one knows why, only that it works.

Also need to change all instances of TotalDTDCount to 1 (or up to 5 if you have up to 5 custom DTDs).

Powerstrip won't work. I'd uninstall it until you get your resolutions working, as I'm not sure it doesn't interfere. It also allows non-VESA pixel clocks (116.006, 116.052), which the Intel drivers won't touch.

Also, the vertical sync offset is non-standard VESA as well. VESA permits only up to 63, and you've doubled that. With 63, you get

51,2D,50,D0,51,00,24,31,68,90,F3,0C,00,00,00,00,00,1E,37,01

but I suspect that will be shifted significantly downward from what you're used to. Is 1360x768 the native rez? Perhaps we could start fresh with generic 1360x768s and work from there if this is not ideal.

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bspachman

Discussion Starter · #3 · Oct 1, 2007

Quote:
Originally Posted by archibael /forum/post/11708288

Need to add a ",37,01" to the end. No one knows why, only that it works.

Also need to change all instances of TotalDTDCount to 1 (or up to 5 if you have up to 5 custom DTDs).

Powerstrip won't work. I'd uninstall it until you get your resolutions working, as I'm not sure it doesn't interfere. It also allows non-VESA pixel clocks (116.006, 116.052), which the Intel drivers won't touch.

Also, the vertical sync offset is non-standard VESA as well. VESA permits only up to 63, and you've doubled that. With 63, you get

51,2D,50,D0,51,00,24,31,68,90,F3,0C,00,00,00,00,00,1E,37,01

but I suspect that will be shifted significantly downward from what you're used to. Is 1360x768 the native rez? Perhaps we could start fresh with generic 1360x768s and work from there if this is not ideal.

Thanks for the pointers! I started from scratch after upgrading the G33 drivers to the latest from the Gigabyte website. I used your suggested DTD, and as you suspected, the image was greatly shifted.

The nice thing about the projector is that I can modify its settings, so I changed the 'vertical' setting to 234, which seemed to fix the problem.

I used a 2x2 tiled grid as a desktop pattern to check for pixel perfection, and unfortunately, there's still quite a bit of moire pattern exhibited.

I think one of my problems is that I don't understand what all the settings on the projector are for. Should I modify those, then adjust the DTD?

brad

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archibael

· #4 · Oct 1, 2007

I'd make sure I adjusted the projector to not do any scaling FIRST, and then move to changing the resolution. Can you get an EDID out of the projector?

Plus, I'm not sure what effect any of these

Quote:
On the PLV-60:

----Fine Sync 35

----Total Dots 1824

----Horiz 364

----Vert 167

----Total Lines 1060

----Clamp 0

----Disp Area H 1360

----Disp Area V 768

are having.

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bspachman

Discussion Starter · #5 · Oct 2, 2007

Quote:
Originally Posted by archibael /forum/post/11783096

I'd make sure I adjusted the projector to not do any scaling FIRST, and then move to changing the resolution. Can you get an EDID out of the projector?

Well, I know the native resolution of the projection is 1366x768. All my research shows that the the projector settings have been successful for other folks striving for pixel perfection.

MonInfo doesn't provide any EDID info for the projector.

The manual for the projector says the following:

Fine sync: Adjustment to eliminate flicker from display

Total dots: Number of dots in one horizontal period

Horizontal: Horizontal picture position

Vertical: Vertical picture position

total lines: Total number of horizontal lines

display area H: adjustment of horizontal area displayed

display area V: adjustment of vertical area displayed

Since the projector is 5+ years old, it is more aligned to old-school, less adjustable graphics cards.

brad

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archibael

· #6 · Oct 2, 2007

Is there a reason, aside from the old school graphics cards which wouldn't do anything not in a multiple of 8, to choose 1360 instead of 1366?

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bspachman

Discussion Starter · #7 · Oct 2, 2007

AFAIK, there's no reason whatsoever. I am not fully up as to what today's graphic cards are capable of (I'm no gamer

), so I have been planning to stick with the onboard graphics of the motherboard (G33 chipset).

Should I reconfigure and try for the full 1366x768?

brad

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archibael

· #8 · Oct 2, 2007

1366 Shouldn't be a problem.

FWIW, I'm getting no moire on my 2x2 black/white grid on any of my custom resolutions.

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bspachman

Discussion Starter · #9 · Oct 3, 2007

Quote:
Originally Posted by archibael /forum/post/11789881

1366 Shouldn't be a problem.

FWIW, I'm getting no moire on my 2x2 black/white grid on any of my custom resolutions.

I've adjusted the fine synch on my projector, and the moire is much less. I gave things another try today...

New Test:

Modeline "1366x768" 112

1366 1398 1822 1854

768 786 789 805

----------------------------------------

Pixel clock = 112 = 11200kHz = 2BC0

hActive = 1366 = 556

hBlank = 488 = 1E8

hSync_offset = 32 = 020

hSync_width = 424 = 1A8

vActive = 768 = 300

vBlank = 292 = 124

vSync_offset = 129 = 081

vSync_width = 132 = 084

-----------------------------------------

DTD:

C0 2B 56 E8 51 00 24 31 20 A8 14 10 00 00 00 00 00 1E 37 01

...but after fiddling with the settings on the projector for a while, came to the conclusion that the projector just didn't like this attempt.

I would like to figure out what the correct settings are for the projector sync pulse, width, front/back porch, etc., but the only pieces of information that I could come up with are that there is a maximum pixel clock of 180MHz, the Horizontal scan rate can vary between 15-100KHz and the Vertical scan rate can vary between 50-100. None of the published specs even show the WideXGA resolution of 1366x768...

brad

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archibael

· #10 · Oct 3, 2007

Quote:
Originally Posted by bspachman /forum/post/11796145

I've adjusted the fine synch on my projector, and the moire is much less. I gave things another try today...

New Test:

Modeline "1366x768" 112

1366 1398 1822 1854

768 786 789 805

----------------------------------------

Pixel clock = 112 = 11200kHz = 2BC0

hActive = 1366 = 556

hBlank = 488 = 1E8

hSync_offset = 32 = 020

hSync_width = 424 = 1A8

vActive = 768 = 300

vBlank = 292 = 124

vSync_offset = 129 = 081

vSync_width = 132 = 084

-----------------------------------------

DTD:

C0 2B 56 E8 51 00 24 31 20 A8 14 10 00 00 00 00 00 1E 37 01

...but after fiddling with the settings on the projector for a while, came to the conclusion that the projector just didn't like this attempt.

Close. The modeline you have translates to

Pixel clock = 112 = 11200kHz = 2BC0

hActive = 1366 = 556

hBlank = 488 = 1E8

hSync_offset = 32 = 020

hSync_width = 424 = 1A8

vActive = 768 = 300

vBlank = 805-768 = 37 = 25h

vSync_offset = 786-768 = 18 = 12h

vSync_width = 3

This is, of course, always assuming that Modeline is correct. The horiz pulse width seems huge to me. But the DTD for this is:

C0 2B 56 E8 51 00 25 30 20 A8 23 14 00 00 00 00 00 1E 37 01

Quote:
I would like to figure out what the correct settings are for the projector sync pulse, width, front/back porch, etc., but the only pieces of information that I could come up with are that there is a maximum pixel clock of 180MHz, the Horizontal scan rate can vary between 15-100KHz and the Vertical scan rate can vary between 50-100. None of the published specs even show the WideXGA resolution of 1366x768...

brad

Yeah, your manual says you have 1366x768, but then doesn't list 1366x768 as one of the allowable resolutions. Bizarre.

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bspachman

Discussion Starter · #11 · Oct 16, 2007

I've gotten back to this project after dealing with some other HTPC issues. Unfortunately, I think I will have to give up on dialing my old projector in perfectly. The DTD that worked best was still one of the early ones:

"1360x768" 116.006 1360 1464 1608 1824 768 897 900 1060 +hsync +vsync

51,2D,50,D0,51,00,24,31,68,90,F3,0C,00,00,00,00,00,1E,37,01

I was never able to dial in my attempt at 1366 on the projector. My 2x2 B&W grid always looked worse than the one above. For reference, what I tried was:

"1366x768" 112 1366 1398 1822 1854 768 786 789 805

C0 2B 56 E8 51 00 25 30 20 A8 23 14 00 00 00 00 00 1E 37 01

I also tried a couple of generic ones you mentioned in this post , notably:

"1360x768" 84.750 1360 1432 1568 1776 768 771 776 798 -hsync +vsync

1B 21 50 A0 51 00 1E 30 48 D0 35 00 00 00 00 00 00 1E 37 01

and its 1366 horizontal resolution variant:

1B 21 56 9A 51 00 1E 30 48 D0 35 00 00 00 00 00 00 1E 37 01

So unless I come up with a magical reference to the best pixel clock, porch settings, etc for my projector... I think I'm at the end...

Best,

Brad

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