800x480 on intel 945GM/GMA950 - is it possible? - Page 2

BadCyborg · 04-17-2007, 12:48 PM

Giuliano, do you think this might get you what you need? Thanks again.

Giuliano · 04-17-2007, 04:15 PM

BadCyborg:

Yeah, the Phoenix EDID editor is useful sometimes.

Run it on your machine, and then click the Extract EDID Registry button:

The timing parameters we want should be shown here..

Giuliano · 04-17-2007, 05:19 PM

Quote: Originally Posted by rigg419

Sorry, a bit off topic and unrelated to car pc's.

First, I gotta give props to Giuliano. Whenever you put out something like this which is a total solution to a common problem, you're going to get morons like me asking stupid questions. that said....

I have an old (2005 is old in computer terms lol) alienware sentia with an intel chip. I use it as an HTPC and have it plugged into my 720p TV (Samsung HL-S5686W DLP if that helps), but the sentia won't output 1280 x 720, only 1024 x 768 (which looks odd) and 1280 x 800 (which the tv won't display).

The version of powerstrip I own (bought it a while back for my last carpc) is laughed at by the intel driver, and so I was wondering if there's a way I can make/find a driver for my chipset -Intel 82852/82855 (855GME)- which will allow the sentia to output 1280 x720 @ 32bit color and 60hz?

Thanks, and sorry for the unrelated/stupid question, but it's been a thorn in my side since I got the tv in february.

rigg419,

Here's your driver package for 1280x720 (progressive) 32-bit @ 60hz:

http://moschini.org/855GME-1280x720p.zip

File size is 925k as before.

Extract, go into the Utilities folder, and run Setup.

This should spit out 1280x720 non-interlaced on the analog VGA port as the only adapter.

If you have DVI instead, let me know..

Giuliano · 04-17-2007, 05:28 PM

This is also good info:

http://isnwiki.jot.com/WikiHome/Articles/111111431

There's a section in the .inf files for the Intel Video drivers for the 915, 945, and 965 chipsets that allows you to use custom EDID timings right from the INF.

For example, this is one that I made for 800 x 480 (Xenarc timing) using the Vista drivers:

Code:

[NonEDIDMode_AddSwSettings]
HKR,, TotalDTDCount, %REG_DWORD%, 1  	; This shows number of DTDs to be used. ;  0-->Disable the feature.
;Following keys have 20 bytes (18 byte DTD + 2 Byte flags).
HKR,, DTD_1,%REG_BINARY%, 96, 96, 20, e8, 30, e0, e8, 10, 28, 50, 00, 00, 19, 10, 00, 00, 00, 00, 00, 00	;800 x 480
HKR,, DTD_2,%REG_BINARY%, 01,1D,80,18,71,1C,16,20,58,2C,1A,00,00,00,00,00,00,86,37,01		;1920x1080@60...Interlaced
HKR,, DTD_3, %REG_BINARY%, 01,1D,80,D0,72,1C,16,20,10,2C,1A,80,00,00,00,00,00,86,37, 01		;1920x1080@50...Interlaced
HKR,, DTD_4,%REG_BINARY%, 01,1D,00,BC,52,D0,1E,20,B8,28,25,40,00,00,00,00,00,04,37, 01		;1280x720@50....Non-interlaced
HKR,, DTD_5, %REG_BINARY%, 01,1D,00,72,51,D0,1E,20,6E,28,25,00,00,00,00,00,00,06,37,01		;1280x720@60....Non-interlaced	
HKR,, DTD_6,%REG_BINARY%, 00, 00, 00 ,00, 00, 00,00, 00, 00,00, 00, 00,00, 00, 00,00, 00, 00,00, 00	;Fifth DTD

That 5th line is actually where I pulled the 1280x720 @ 60 hz timings for rigg419.. I had to decode it for the individual parameters to plug into a DTD for the IEGD driver tool.

It's a serious mind twister to decode, though.

Here's the key:

Code:

These are VESA standard timings information in EDID.  The decoder ring for the 18 bytes is as follows:  
   
   1. Low Byte of DClk in 10 KHz
   2. High Byte of DClk in 10 KHz
   3. Horizontal Active in pixels, LSB
   4. Horizontal Blanking in pixels, LSB
   5   Bit 7-4: Upper 4 bits of Hor. Active
   5   Bit 3-0: Upper 4 bits of Hor. Blanking
   6.  Vertical Active in lines, LSB
   7.  Vertical Blanking in lines, LSB
   8   Bit 7-4: Upper 4 bits of Vert. Active
   8   Bit 3-0: Upper 4 bits of Vert. Blanking
   9. HSync Offset from Hor. Blanking in pix., LSB
   10. HSync Pulse Width in pixels, LSB
   11  Bit 7-4: Lower 4 bits of VSync Offset
   11  Bit 3-0: Lower 4 bits of VSync Pulse Width
   12  Bit 7-6: Upper 2 bits of HSync Offset
   12  Bit 5-4: Upper 2 bits of HSync Pulse Width
   12  Bit 3-2: Upper 2 bits of VSync Offset
   12  Bit 1-0: Upper 2 bits of VSync Pulse Width
   13. Horizontal Image Size, LSB
   14. Vertical Image Size, LSB
   15  Bit 7-4: Upper 4 bits of Hor. Image Size
   15  Bit 3-0: Upper 4 bits of Vert. Image Size
   16. Horizontal Border in pixels
   17. Vertical Border in lines
   18. Flags:
      Bit 7:   0 = Non-interlaced, 1 = Interlaced
      Bit 6-5: 00 = Reserved
      Bit 4-3: 11 = Digital Separate
      Bit 2:   Vertical Polarity (0 = Negative, 1 = Positive)
      Bit 1:   Horizontal Polarity (0 = Negative, 1 = Positive)
      Bit 0:   0 = Reserved" 
   19. Leave as 37
   20. Leave as 21

rigg419 · 04-17-2007, 06:17 PM

Quote: Originally Posted by Giuliano

rigg419,

Here's your driver package for 1280x720 (progressive) 32-bit @ 60hz:

http://moschini.org/855GME-1280x720p.zip

File size is 925k as before.

Extract, go into the Utilities folder, and run Setup.

This should spit out 1280x720 non-interlaced on the analog VGA port as the only adapter.

If you have DVI instead, let me know..

I do in fact use VGA, you must be a mind reader!

I can't wait to get home so I can try this. Do you have a paypal? I'd love to throw you a quid as a token of my thanks. Alternatively, I'm a decent graphic designer if you need something photoshopped

Giuliano · 04-17-2007, 06:34 PM

Quote: Originally Posted by rigg419

I do in fact use VGA, you must be a mind reader!

I can't wait to get home so I can try this. Do you have a paypal? I'd love to throw you a quid as a token of my thanks. Alternatively, I'm a decent graphic designer if you need something photoshopped

Glad I could help..

Felix509 · 04-18-2007, 01:59 PM

Hey there Giuliano, i don't recon i could sweet talk you into a XP Pro driver for the Intel G965 using VGA and a 800x480 rez on a Xenarc 700tsv?

//

Giuliano · 04-18-2007, 02:17 PM

Quote: Originally Posted by Felix509

Hey there Giuliano, i don't recon i could sweet talk you into a driver for the Intel G965 using VGA and a 800x480 rez for Xenarc 700tsv?

Here you go:

http://moschini.org/G963-G965-800x480-Xenarc.zip

Analog VGA only, 800x480 Xenarc timings on G963 or G965 chipsets.

Let me know how it works!

Thanks,

G

hithere · 04-18-2007, 03:16 PM

Giuliano,

I'm getting the "not all components of the driver installed properly" error after I execute the executable. This is on a Dell Inspiron 6400 with Intel 945GM graphics chipset. I extract the file, then run the setup in the utilities folder, as specified....anything I may be missing?

Giuliano · 04-18-2007, 03:17 PM

Folks,

Here's a package that was built to cover 800x480 with Xenarc timings on the Analog VGA port, for all of these Intel chipsets:

852GM
852GME
845GV
855GME
915GM
915GV
945G
945GM

Here is the package:

http://moschini.org/ALL-VGA-800x480-Xenarc.zip (925k)

NOTE:

The above package may not work on laptops, or systems with LVDS LCD panels attached. Analog VGA ONLY!

I will build a package for laptops / LVDS and Analog VGA combinations shortly.

I should also note that these configuration settings are not fixed in stone.

They can be changed any time, using the IEGDGUI utility in the Utilities folder.

Giuliano · 04-18-2007, 03:20 PM

Quote: Originally Posted by hithere

Giuliano,

I'm getting the "not all components of the driver installed properly" error after I execute the executable. This is on a Dell Inspiron 6400 with Intel 945GM graphics chipset. I extract the file, then run the setup in the utilities folder, as specified....anything I may be missing?

That's a laptop... the driver build package didn't account for the local LCD panel, which it needs to.

I'll build another package with the settings for a local LCD panel on the LVDS port.

Here is the package:

http://moschini.org/945GM-LVDS-VGA-800x480-Xenarc.zip (925k)

This should set up the configuration with local LVDS LCD panel at its defaults, and the analog VGA port at 800x480 Xenarc timings.

The two displays are set up in Clone mode, so both displays will have the same image.

You can change this or adjust settings using the IEGDGUI utility mentioned above.

For best results, uninstall any previous driver packages from Add/Remove Control Panel first.

hithere · 04-18-2007, 03:44 PM

Quote: Originally Posted by Giuliano

-

WOW that was fast. I'm so impressed by the level of generosity on these forums. I'll give the package a try shortly and get back to you on results.

And, once again, thank you.

Giuliano · 04-18-2007, 03:48 PM

Actually, it's quite easy..

The Xenarc timings were the most difficult part, and once I got that decoded into a Device Timing Description (DTD) file, I can re-use it for different builds.

For laptops, I'm defaulting to having both displays set in Clone mode, where they display the same content, but can have different resolutions.

These settings may not be optimal, but you can change it using the IEGDGUI utility or the Advanced button on the video control panel.

Giuliano · 04-18-2007, 03:56 PM

Here's a build for local LVDS LCD panels (Laptop LCD) and Analog VGA, with Xenarc 800x480 timings.

Chipsets:

855GME
915GM
945GM

Package:
http://moschini.org/ALL-LVDS-VGA-800x480-Xenarc.zip

All the other chipsets don't have LVDS ports on the chip - use this one instead for Analog VGA only:

http://moschini.org/ALL-VGA-800x480-Xenarc.zip

hithere · 04-18-2007, 06:33 PM

Giuliano, please accept my apologies, but none of these seems to work. I'll try a few different things and get back to you. Sorry to be a PITA, I sure do appreciate your efforts,