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Garbled DOS boot screen with P650 AGP

Discussion in 'Matrox' started by Thomas Antonsen, Jul 10, 2005.

  1. Hi,

    I just upgraded my G550 to a P650 card. Now I am unable to read the screen
    in DOS mode, all is OK as soon as WinXP starts up, but i am unable to read
    the BIOS screens. Any ideas what this error is about? I use newest BIOS for
    the Matrox card.

    Regards Thomas
     
    Thomas Antonsen, Jul 10, 2005
    #1
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  2. Thomas Antonsen

    Ken Guest

    On Sun, 10 Jul 2005 22:45:39 +0200, "Thomas Antonsen"
    <> wrote:

    > I just upgraded my G550 to a P650 card. Now I am unable to read the screen
    > in DOS mode, all is OK as soon as WinXP starts up, but i am unable to read
    > the BIOS screens. Any ideas what this error is about? I use newest BIOS for
    > the Matrox card.


    Known problem. I have the same with my P750. I have to use
    another graphic card when I have to go into BIOS.
     
    Ken, Jul 11, 2005
    #2
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  3. "Ken" <> wrote in message
    news:...
    > On Sun, 10 Jul 2005 22:45:39 +0200, "Thomas Antonsen"
    > <> wrote:
    >
    >> I just upgraded my G550 to a P650 card. Now I am unable to read the
    >> screen
    >> in DOS mode, all is OK as soon as WinXP starts up, but i am unable to
    >> read
    >> the BIOS screens. Any ideas what this error is about? I use newest BIOS
    >> for
    >> the Matrox card.

    >
    > Known problem. I have the same with my P750. I have to use
    > another graphic card when I have to go into BIOS.
    >


    Does this happen with the Parhelia as well? Is this case for all P650 and
    P750 owners? Is it just one type of BIOS this happens with?

    Cheers

    ss.
     
    Synapse Syndrome, Jul 13, 2005
    #3
  4. Thomas Antonsen

    Larc Guest

    On Sun, 10 Jul 2005 22:45:39 +0200, "Thomas Antonsen"
    <> wrote:

    | Hi,
    |
    | I just upgraded my G550 to a P650 card. Now I am unable to read the screen
    | in DOS mode, all is OK as soon as WinXP starts up, but i am unable to read
    | the BIOS screens. Any ideas what this error is about? I use newest BIOS for
    | the Matrox card.

    Can you try the card in another system to see if the same thing
    happens? A post to the Matrox Technical Support Forum on May 16 about
    a similar problem got a suggestion from a Matrox Tech that the card be
    returned to the seller for replacement if it's not more than 30 days
    old. Anything older could be RMAed to Matrox.

    In my experience, Matrox is very good at getting problems such as this
    one solved — or at least identified if it's not a Matrox problem.

    Suggest you try the Matrox Technical Support Forum for more answers.

    http://forum.matrox.com/mga/index.php

    Larc



    §§§ - Change planet to earth to reply by email - §§§
     
    Larc, Jul 13, 2005
    #4
  5. Thomas Antonsen

    Larc Guest

    On Wed, 13 Jul 2005 02:38:29 +0000 (UTC), "Synapse Syndrome"
    <> wrote:

    |
    | "Ken" <> wrote in message
    | news:...
    | > On Sun, 10 Jul 2005 22:45:39 +0200, "Thomas Antonsen"
    | > <> wrote:
    | >
    | >> I just upgraded my G550 to a P650 card. Now I am unable to read the
    | >> screen
    | >> in DOS mode, all is OK as soon as WinXP starts up, but i am unable to
    | >> read
    | >> the BIOS screens. Any ideas what this error is about? I use newest BIOS
    | >> for
    | >> the Matrox card.
    | >
    | > Known problem. I have the same with my P750. I have to use
    | > another graphic card when I have to go into BIOS.
    | >
    |
    | Does this happen with the Parhelia as well? Is this case for all P650 and
    | P750 owners? Is it just one type of BIOS this happens with?

    Never had a problem with my P650. :)

    Larc



    §§§ - Change planet to earth to reply by email - §§§
     
    Larc, Jul 13, 2005
    #5
  6. Thomas Antonsen

    Ken Guest

    On Wed, 13 Jul 2005 02:38:29 +0000 (UTC), "Synapse Syndrome"
    <> wrote:

    >>> I just upgraded my G550 to a P650 card. Now I am unable to read
    >>> the screen in DOS mode, all is OK as soon as WinXP starts up,
    >>> but i am unable to read the BIOS screens. Any ideas what this
    >>> error is about? I use newest BIOS for the Matrox card.

    >>
    >> Known problem. I have the same with my P750. I have to use
    >> another graphic card when I have to go into BIOS.

    >
    > Does this happen with the Parhelia as well? Is this case for all P650
    > and P750 owners? Is it just one type of BIOS this happens with?


    The problem is that the graphic processor don't support
    low color resolution.
    This files can sometime fix some of the problems.
    "SystemLogoFix.exe"
    "SystemLogoColorFix.exe"
    I use this motherboard: Asus P4C800-E Deluxe
     
    Ken, Jul 13, 2005
    #6
  7. Hi Larc,

    Thanks for your reply, I have registered at the Matrox forum, and posted my
    question there as well. I could put the P650 card into another PC, but it
    would mean, I would have to take this one apart, so I wait for the reply at
    the forum first :)

    I bought my card secondhand, so i guess returning it to Matrox is not an
    option...?

    Regards Thomas




    "Larc" <> skrev i en meddelelse
    news:...
    > On Sun, 10 Jul 2005 22:45:39 +0200, "Thomas Antonsen"
    > <> wrote:
    >
    > | Hi,
    > |
    > | I just upgraded my G550 to a P650 card. Now I am unable to read the
    > screen
    > | in DOS mode, all is OK as soon as WinXP starts up, but i am unable to
    > read
    > | the BIOS screens. Any ideas what this error is about? I use newest BIOS
    > for
    > | the Matrox card.
    >
    > Can you try the card in another system to see if the same thing
    > happens? A post to the Matrox Technical Support Forum on May 16 about
    > a similar problem got a suggestion from a Matrox Tech that the card be
    > returned to the seller for replacement if it's not more than 30 days
    > old. Anything older could be RMAed to Matrox.
    >
    > In my experience, Matrox is very good at getting problems such as this
    > one solved - or at least identified if it's not a Matrox problem.
    >
    > Suggest you try the Matrox Technical Support Forum for more answers.
    >
    > http://forum.matrox.com/mga/index.php
    >
    > Larc
    >
    >
    >
    > §§§ - Change planet to earth to reply by email - §§§
     
    Thomas Antonsen, Jul 13, 2005
    #7
  8. Ken,

    Where do you get these files, you mention?

    Regards Thomas

    "Ken" <> skrev i en meddelelse
    news:...
    > On Wed, 13 Jul 2005 02:38:29 +0000 (UTC), "Synapse Syndrome"
    > <> wrote:
    >
    >>>> I just upgraded my G550 to a P650 card. Now I am unable to read
    >>>> the screen in DOS mode, all is OK as soon as WinXP starts up,
    >>>> but i am unable to read the BIOS screens. Any ideas what this
    >>>> error is about? I use newest BIOS for the Matrox card.
    >>>
    >>> Known problem. I have the same with my P750. I have to use
    >>> another graphic card when I have to go into BIOS.

    >>
    >> Does this happen with the Parhelia as well? Is this case for all P650
    >> and P750 owners? Is it just one type of BIOS this happens with?

    >
    > The problem is that the graphic processor don't support
    > low color resolution.
    > This files can sometime fix some of the problems.
    > "SystemLogoFix.exe"
    > "SystemLogoColorFix.exe"
    > I use this motherboard: Asus P4C800-E Deluxe
    >
     
    Thomas Antonsen, Jul 13, 2005
    #8
  9. Sorry, i found them in the BIOS upgrade file.... :)

    /thomas


    "Ken" <> skrev i en meddelelse
    news:...
    > On Wed, 13 Jul 2005 02:38:29 +0000 (UTC), "Synapse Syndrome"
    > <> wrote:
    >
    >>>> I just upgraded my G550 to a P650 card. Now I am unable to read
    >>>> the screen in DOS mode, all is OK as soon as WinXP starts up,
    >>>> but i am unable to read the BIOS screens. Any ideas what this
    >>>> error is about? I use newest BIOS for the Matrox card.
    >>>
    >>> Known problem. I have the same with my P750. I have to use
    >>> another graphic card when I have to go into BIOS.

    >>
    >> Does this happen with the Parhelia as well? Is this case for all P650
    >> and P750 owners? Is it just one type of BIOS this happens with?

    >
    > The problem is that the graphic processor don't support
    > low color resolution.
    > This files can sometime fix some of the problems.
    > "SystemLogoFix.exe"
    > "SystemLogoColorFix.exe"
    > I use this motherboard: Asus P4C800-E Deluxe
    >
     
    Thomas Antonsen, Jul 13, 2005
    #9
  10. Thomas Antonsen

    Arthur Hagen Guest

    Ken <> wrote:
    > On Wed, 13 Jul 2005 02:38:29 +0000 (UTC), "Synapse Syndrome"
    > <> wrote:
    >
    >>>> I just upgraded my G550 to a P650 card. Now I am unable to read
    >>>> the screen in DOS mode, all is OK as soon as WinXP starts up,
    >>>> but i am unable to read the BIOS screens. Any ideas what this
    >>>> error is about? I use newest BIOS for the Matrox card.
    >>>
    >>> Known problem. I have the same with my P750. I have to use
    >>> another graphic card when I have to go into BIOS.

    >>
    >> Does this happen with the Parhelia as well? Is this case for all
    >> P650 and P750 owners? Is it just one type of BIOS this happens with?

    >
    > The problem is that the graphic processor don't support
    > low color resolution.


    The problem is AFAIK *NOT* that the graphics processor don't support low
    color resolution -- it does. The problem seems to be that Asus (in
    their implementation of a system that lets the user change the boot
    picture) erroneously assume that all gpus use contiguous memory that
    wraps over from one line to the next. However, a 480 pixel wide screen
    with 16 colours requires 120 bytes, which is an 8-byte boundary. The
    Parhelia/P750 requires a 16-byte boundary, meaning that pixel 481 on a
    line isn't the same as pixel 1 on the next line -- there's 8 bytes of
    padding between each line. The P cards announce this in the BIOS
    capabilities call for the resolution, but Asus seems to ignore this.
    It's not a problem with most other cards because they have a narrower
    memory window and alignment requirements, and not a problem with other
    BIOSes, who don't make that assumption.

    Matrox has provided two workaround fixes for this problem -- one which
    disables the 480xNNNx16 mode forcing the BIOS to choose a different one,
    and one that emulates a narrower memory window at the expense of speed.
    Asus has done nothing, and tells their customers to contact Matrox,
    despite all evidence appearing to point towards Asus being the culprit,
    not handling padded lines for 480xNNNx16 resolutions.

    Regards,
    --
    *Art
     
    Arthur Hagen, Jul 13, 2005
    #10
  11. Problem was solved by upgrading to latest bios for the P650 and running
    "systemlogofix.exe" after the bios update.

    Regards Thomas




    "Thomas Antonsen" <> skrev i en meddelelse
    news:42d188f1$0$242$...
    > Hi,
    >
    > I just upgraded my G550 to a P650 card. Now I am unable to read the screen
    > in DOS mode, all is OK as soon as WinXP starts up, but i am unable to read
    > the BIOS screens. Any ideas what this error is about? I use newest BIOS
    > for the Matrox card.
    >
    > Regards Thomas
    >
    >
     
    Thomas Antonsen, Jul 13, 2005
    #11
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