Problem with Intel 945GME and LVDS

Hi,

I have deployed a XPe image for a mainboard with Intel 945gm(e)
chipset. The driver has been built with Intels IEGD driver kit 8.0,
with support for both 855 and 945 chipsets. External VGA port is
supported, and internal LVDS, connected to a LCD, display clone mode,
1024*768@60Hz.

Now we face the problem that, when our button to turn off the display
is used, aftert reactivating the display the content is garbled. The
picture can be seen, but in wrong colours, low contrast and with some
flickering noise. It just looks like a LVDS display with wrong BIOS
settings.

So it seems that the graphic chip does not wake up correctly after
this partial power down.

When using the normal XP driver that is designed for the end users
notebook PC or such, there is no problem at all. But we must use this
embedded driver, to be able to support several mainboards, and because
of the new 945gme chipset that only is used with embedded stuff, and
is not supported by the normal end user stuff.

Any ideas what I could have done wrong? Thank you for any input!

--

Ralph.

http://www.dk5ras.de/ http://www.db0fue.de/
http://www.bclog.de/

Hello Ralph,
I suggest you to use this component:
http://xpefiles.com/cs/files/folders/583/download.aspx
that I know is OK, download from this site is now possible.
It seems that your button shuts down display settings and no init is done on
restart.
To avoid this behavior usually only the backligt is powered off while the
graphic controller stays powered
Regards Raffaele

"Ralph A. Schmid, dk5ras" <ralph@radio-link.net> ha scritto nel messaggio
news:86es449n2b6bv1vr50ofmjtbmdf5vmi8b8@4ax.com...
> Hi,
>
> I have deployed a XPe image for a mainboard with Intel 945gm(e)
> chipset. The driver has been built with Intels IEGD driver kit 8.0,
> with support for both 855 and 945 chipsets. External VGA port is
> supported, and internal LVDS, connected to a LCD, display clone mode,
> 1024*768@60Hz.
>
> Now we face the problem that, when our button to turn off the display
> is used, aftert reactivating the display the content is garbled. The
> picture can be seen, but in wrong colours, low contrast and with some
> flickering noise. It just looks like a LVDS display with wrong BIOS
> settings.
>
> So it seems that the graphic chip does not wake up correctly after
> this partial power down.
>
> When using the normal XP driver that is designed for the end users
> notebook PC or such, there is no problem at all. But we must use this
> embedded driver, to be able to support several mainboards, and because
> of the new 945gme chipset that only is used with embedded stuff, and
> is not supported by the normal end user stuff.
>
> Any ideas what I could have done wrong? Thank you for any input!
>
> --
>
> Ralph.
>
> http://www.dk5ras.de/ http://www.db0fue.de/
> http://www.bclog.de/

"crus" <crus@discussions.microsoft.com> wrote:

>I suggest you to use this component:
>http://xpefiles.com/cs/files/folders/583/download.aspx
>that I know is OK, download from this site is now possible.

Thank you for the hint. Looks OK so far, better than nothing :-) I
liked the idea of the IEGD, but it seems unusable when I can not get
it to work as it should...


--

Ralph.

http://www.dk5ras.de/ http://www.db0fue.de/
http://www.bclog.de/

"crus" <crus@discussions.microsoft.com> wrote:

>I suggest you to use this component:
>http://xpefiles.com/cs/files/folders/583/download.aspx
>that I know is OK, download from this site is now possible.

I have tested the package, and it does not support the 945GME
completely :-( Any other ideas? I am really stuck at the moment and do
not know exactly how to fix the problem...


--

Ralph.

http://www.dk5ras.de/ http://www.db0fue.de/
http://www.bclog.de/

Hi out there,

problem solved :-) Live can be so simple...

The IEGD 8 tool allows setting LVDS to single channel 24 bit with
checking two boxes, but this setting seems to have not the expected
influence on the real behaviour. However setting the parameters with
manually editing the related attributes does the trick!

So I have spent a few days to find out that typing in some words and
numbers into the right places fixes it - as always :-)))


--

Ralph.

http://www.dk5ras.de/ http://www.db0fue.de/
http://www.bclog.de/