Thread: 800x480 on intel 945GM/GMA950 - is it possible?

All right..

I think I have made some corrections to what the EDID string is supposed to be.. but since I don't actually have a Xenarc screen, I'm not seeing it show up.. or something.


Could you run the Moninfo program from here:

http://entechtaiwan.net/util/moninfo.shtm


Save the data with the Report button, and post here.

If it sees more than one monitor, do them all.


The information I'm really looking for is the Raw EDID base, which is a bunch of hex numbers.


The touchscreen driver is just a HID (human input device) component, like a mouse, so it shouldn't be affecting anything.

And my check box for the unsupported modes was grayed out, but it was unchecked.


I need to verify if the EDID numbers I created match what the monitor is saying..

Giuliano, I'll have to get back to you in the morning on this, i've spent the last few nites working on the car, and the wifey is getting upset...I'll post in the morning with the info, as soon as I can. Thanks again for all your dilligence.

Actually, I was reading that the Xenarcs don't give the EDID timings, which is why we're stuck.

I looked at my numbers, and I think I had them wrong.


Best that I can tell, these should be the right numbers:

[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,E0,8E,10,28,50,D3,C0,00,00,00,00,00 ,00,37,01 ;800x480@60...Non-Interlaced, Xenarc Timing


I have no real way of testing it, though... not unless I get a Xenarc.

I know Wicked 5.9L got his configuration working with the IEGD driver package..

Wicked, care to try these parameters with the standard Intel video driver package?

Originally Posted by Giuliano

Actually, I was reading that the Xenarcs don't give the EDID timings, which is why we're stuck.

I looked at my numbers, and I think I had them wrong.


Best that I can tell, these should be the right numbers:

[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,E0,8E,10,28,50,D3,C0,00,00,00,00,00 ,00,37,01 ;800x480@60...Non-Interlaced, Xenarc Timing


I have no real way of testing it, though... not unless I get a Xenarc.

I know Wicked 5.9L got his configuration working with the IEGD driver package..

Wicked, care to try these parameters with the standard Intel video driver package?

OK, tried the above numbers in the IEGD driver...driver hangs on install with the setup.exe. Tried a manual update of the drivers, that took.

Here is where the weirdness begins: The computer will work fine without the Zenarc hooked up. However, if I enter the display settings page, the resolutions available for the second monitor (not hooked up) are mixed up in order...I have 1280 X 720 listed first, other resolutions after, but these are also mixed in terms of rotated resolutions, etc.(this is under the display properties tab that shows the two monitors and resolution slider, not the advanced/adaptor menu..under advanced/adaptor/list available modes, I have a normal-looking list, but no 800 X 480).

When I hook the Zenarc up, the computer will not display on either the built-in LCD or the Zenarc, nor will it return to normal display after the Zenarc is removed. In short, it hangs the display subsystem.

I'll run that monitor program above over lunch time and see what I can come up with.

BTW, I want to clarify my question earlier concerning aspect ratio: I know the Zenarc has a slightly odd ratio, but does the physical aspect ratio of the screen (width as measured with a ruler divided by height) correlate to the derived aspect you get from dividing horizontal and vertical resolution? In other words, are the pixels the same shape on the Zenarc vs. other display devices? I know I can easily find the aspect of a normal screen by dividing Horizontal by vertical resolution...because I have square pixels. I'm just wondering if the Zenarc will display in the proper aspect if it's running at native resolution, and how it will handle video/pictures. I'm not really worried about loosing overlay. In my mind, getting the screen up and running at native resolution is for naught if Windows doesn't understand or cannot be told how to handle the actual physical aspect of the screen. I'm just one of those guys who can't stand stretch-o-vision, regardless of whether it's being rendered in native resolution or not.

Originally Posted by hithere

OK, tried the above numbers in the IEGD driver...driver hangs on install with the setup.exe. Tried a manual update of the drivers, that took.

The NonEDIDMode_AddSwSettings section is supposed to be for the non-IEGD driver packages, the standard Intel or Dell drivers.

I'm not surprised that caused the IEGD installer to hang..

Here is where the weirdness begins: The computer will work fine without the Zenarc hooked up. However, if I enter the display settings page, the resolutions available for the second monitor (not hooked up) are mixed up in order...I have 1280 X 720 listed first, other resolutions after, but these are also mixed in terms of rotated resolutions, etc.(this is under the display properties tab that shows the two monitors and resolution slider, not the advanced/adaptor menu..under advanced/adaptor/list available modes, I have a normal-looking list, but no 800 X 480).

When I hook the Zenarc up, the computer will not display on either the built-in LCD or the Zenarc, nor will it return to normal display after the Zenarc is removed. In short, it hangs the display subsystem.

Very odd..

I'll run that monitor program above over lunch time and see what I can come up with.

If you can capture the settings for your laptop's LCD panel, I can try to re-create those timings in a IEGD driver package.


It's kind of difficult, as the internals of these laptops are practically unknown at the low-level technical details..

BTW, I want to clarify my question earlier concerning aspect ratio: I know the Zenarc has a slightly odd ratio, but does the physical aspect ratio of the screen (width as measured with a ruler divided by height) correlate to the derived aspect you get from dividing horizontal and vertical resolution? In other words, are the pixels the same shape on the Zenarc vs. other display devices? I know I can easily find the aspect of a normal screen by dividing Horizontal by vertical resolution...because I have square pixels. I'm just wondering if the Zenarc will display in the proper aspect if it's running at native resolution, and how it will handle video/pictures. I'm not really worried about loosing overlay. In my mind, getting the screen up and running at native resolution is for naught if Windows doesn't understand or cannot be told how to handle the actual physical aspect of the screen. I'm just one of those guys who can't stand stretch-o-vision, regardless of whether it's being rendered in native resolution or not.

A resolution of 800 x 480 has an aspect ratio of 15:9.

Pictures and text will appear normally, as all the pixels are square.

Circles will be circles and not ovals, squares will be squares and not rectangles.


When you get to playing video or DVD's, the aspect ratio of the source media can be handled two ways:

The aspect can be ignored, and the video stretched to fit the height and width resolutions of the screen.

The aspect can be maintained, and the video stretched to fit the width resolution of the screen.


When the aspect is maintained, you get black bars on the left/right for 4:3 video, and black bars on the top/bottom for 16:9 video.

Other aspects are similar.


The aspect control settings are dependant on the media player software or DVD software, for the most part.


Basically it boils down to this:

If you get the display running at the LCD panel's native resolution, or at least an even multiple, the picture will be fine.

Hithere,

Do you know which one of these your laptop LCD panel is, on your Dell Inspiron 6400?

WXGA (1280 x 800)
WSXGA+ (1680 x 1050)


If I can find out what the panel is, I think I can build a DTD for the laptop LCD panel and use the IEGD package builder.

-G

Originally Posted by Giuliano

Hithere,

Do you know which one of these your laptop LCD panel is, on your Dell Inspiron 6400?

WXGA (1280 x 800)
WSXGA+ (1680 x 1050)


If I can find out what the panel is, I think I can build a DTD for the laptop LCD panel and use the IEGD package builder.

-G

wsxga...I'll do the moninfo and get it to you in an hour or so.

Edit: Here you go:

Monitor 1 creates this report:


EDID-0
ID SEC3250
SN n/a

This is the text I see for monitor 1:

Monitor
Windows description......... Plug and Play Monitor
Manufacturer................ Seiko-Epson
————————————————————————————
Plug and Play ID............ SEC3250
Serial number............... n/a
EDID data source............ Registry (stored)
————————————————————————————
Manufacture date............ 2006
EDID revision............... 1.3
Display type and signal..... Digital
Sync input support.......... n/a
Screen size................. 2550 x 2550 mm (~155")
Power management............ Standby, Suspend, Active off/sleep

Color characteristics
Display gamma............... 3.55
Red chromaticity............ Rx 0.625 - Ry 0.340
Green chromaticity.......... Gx 0.285 - Gy 0.605
Blue chromaticity........... Bx 0.148 - By 0.063
White point (default)....... Wx 0.281 - Wy 0.309

Timing characteristics
VESA GTF support............ Not supported
Horizontal scan range....... n/a
Vertical scan range......... n/a
Video bandwidth............. n/a
Extension blocks............ n/a
Timing recommendation #1.... 1680x1050 at 60Hz
Modeline................ "1680x1050" 119.230 1680 1728 1760 1840 1050 1052 1058 1080 -hsync -vsync

Standard timings supported
640 x 480 at 60Hz - IBM VGA
800 x 600 at 60Hz - VESA
1024 x 768 at 60Hz - VESA
1680 x 1050 at 60Hz - Seiko-Epson

Raw EDID base
00: 00 FF FF FF FF FF FF 00 4C A3 50 32 00 00 00 00
10: 00 10 01 03 80 FF FF FF EA 00 00 A0 57 49 9B 26
20: 10 48 4F 21 08 00 01 01 01 01 01 01 01 01 01 01
30: 01 01 01 01 01 01 93 2E 90 A0 60 1A 1E 40 30 20
40: 26 00 4B CF 10 00 00 19 00 00 00 00 00 00 00 00
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 B7

Display adapter
Adapter description......... Mobile Intel(R) 945GM Express Chipset Family
Adapter device ID........... 0x27A28086
Display settings............ 1680x1050, 32bpp


Here is the text I see in the report for the second monitor (xenarc not hooked up, will do so if you request):

EDID-0
ID SEC3250
SN n/a

Here is the text I see in the window:

Monitor
Windows description......... Seiko-Epson Monitor
Manufacturer................ Seiko-Epson
————————————————————————————
Plug and Play ID............ SEC3250
Serial number............... n/a
EDID data source............ I2C bus (real-time)
————————————————————————————
Manufacture date............ 2006
EDID revision............... 1.3
Display type and signal..... Digital
Sync input support.......... n/a
Screen size................. 330 x 210 mm (~16")
Power management............ n/a

Color characteristics
Display gamma............... 2.20
Red chromaticity............ Rx 0.580 - Ry 0.340
Green chromaticity.......... Gx 0.310 - Gy 0.550
Blue chromaticity........... Bx 0.155 - By 0.155
White point (default)....... Wx 0.313 - Wy 0.329

Timing characteristics
VESA GTF support............ Not supported
Horizontal scan range....... n/a
Vertical scan range......... n/a
Video bandwidth............. n/a
Extension blocks............ n/a
Timing recommendation #1.... 1680x1050 at 60Hz
Modeline................ "1680x1050" 119.230 1680 1728 1760 1840 1050 1052 1058 1080 -hsync -vsync

Standard timings supported
n/a

Raw EDID base
00: 00 FF FF FF FF FF FF 00 4C A3 50 32 00 00 00 00
10: 00 10 01 03 80 21 15 78 0A 87 F5 94 57 4F 8C 27
20: 27 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
30: 01 01 01 01 01 01 93 2E 90 A0 60 1A 1E 40 30 20
40: 26 00 4B CF 10 00 00 19 00 00 00 0F 00 00 00 00
50: 00 00 00 00 00 3C D2 02 64 00 00 00 00 FE 00 43
60: 46 32 36 34 02 31 35 34 50 32 0A 20 00 00 00 FE
70: 00 28 3F 48 54 7D A3 D3 FF 02 01 0A 20 20 00 55

Display adapter
Adapter description......... Auxiliary port
Adapter device ID........... 0x27A68086
Display settings............ n/a

couldn't get powerstrip to allow 800x480 on my intel 82810e (pretty old...) - just wondering if you could tell me what I could try to get that as an option.

i have no idea if there are similarities with the other intel chipsets, but it's worth asking right? thanks for the good work