4820TG 1900x600 screen BIOS hack needed

Discussion in 'Acer' started by Sxooter, Mar 9, 2011.

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  1. Sxooter

    Sxooter Notebook Virtuoso

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    Anybody wanna help me hack the BIOS / vBIOS on my 4820TG to get a 1600x900 screen working? I got ubuntu and win7 on it, so whichever is better for doing the job...
     
  2. prikolchik

    prikolchik Notebook Evangelist

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    1. It is 1600x900, not 1900x600.
    2. Post of a photo of what is wrong with the screen at the moment
    3. Acer Aspire 4820/5820 has InsydeH2O (AKA InsydeH20 or Insyde). You need to look for Insyde BIOS modders.
    4. Here is ATI vBIOS mod tool that I found RBE - Radeon BIOS editor. It doesn't seem to have the options needed. Perhaps it is possible to contact the developers?
    5. Some information that might be useful:
     
  3. Sxooter

    Sxooter Notebook Virtuoso

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    Thanks! I changed the title at least. I'll try and get a picture of it, but I've got work to do tonight and can't disassemble the laptop just now. Just imagine that every other pixel, horizontally, is black. Res is 1600x900 according to windows and ubuntu.

    When I get some time tomorrow or the next day I'll plug the 1600x900 panel back in and get a picture.

    Meanwhile I'll trawl through the various threads you've linked and see what I can find.
     
  4. downloads

    downloads Super Moderator Super Moderator

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    By the looks of things 4820TG uses single LVDS interface so you can't use a screen with resolution above 1400x900.
    I don't think any kind of mod will help- if it's every other picsels/line visible it means you're using single LVDS instead of double LVDS.
     
  5. Just_a_Nick

    Just_a_Nick Notebook Deity

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    The problem is the single LVDS port implementation.

    You can simple check the clock signal of the 2 channel. Have a look at page 16 on the link.
     
  6. snagnever

    snagnever Notebook Enthusiast

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    no more updates? =(
     
  7. voltron1337

    voltron1337 Notebook Geek

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    I want to see someone put a better 13" int he 3820tg like one from the samsung 9 laptop or Sony vaio SB
     
  8. Just_a_Nick

    Just_a_Nick Notebook Deity

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    The display from the Samsung 9 could fit inside the Acer. Also the Sony could work.

    Be the first and try it. ;)
     
  9. Sxooter

    Sxooter Notebook Virtuoso

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    Sorry, haven't had a lot of free time. I need to get teh bios disassembler downloaded and see if the BIOS has settings in it for 1600x900 or not.
     
  10. Just_a_Nick

    Just_a_Nick Notebook Deity

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    I don't think so, because the hardware doesn't support it.
     
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