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    Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first

    TI99 on a fresh install not working...

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    ti-99texas instrume
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    • K
      KevinsHope
      last edited by KevinsHope

      Hello again,

      Since last I posted, I have re-read the must-read post and I have done a fresh install to RetroPie 4.2, I believe. I have spent most of the day configuring it. For a while, I didn't think I was going to be able to get it set up, but I found a bunch of how too's on line and got the job done. With the new install, I installed the experimental package for the TI-99. It does, in fact, show up on the home screen to be selected. The games for it do show up when I enter the emulation. However, when I click on any game, it goes black, shows the little gray box, and then returns to the TI-99 menu. Please help if you know how to get this emulator running.

      herb_fargusH 1 Reply Last reply Reply Quote 0
      • herb_fargusH
        herb_fargus administrators @KevinsHope
        last edited by

        @kevinshope you're missing the bios file. The wiki page explains which are needed. It needs to be named exactly as it shows in order for it to work.

        If you read the documentation it will answer 99% of your questions: https://retropie.org.uk/docs/

        Also if you want a solution to your problems read this first: https://retropie.org.uk/forum/topic/3/read-this-first

        K 1 Reply Last reply Reply Quote 0
        • K
          KevinsHope
          last edited by KevinsHope

          I was thinking this, Herb. However, while I know the name of the file needed, that bios file is the most illusive file I've ever looked for on the web. I own an actual TI-99. I would just harvest the BIOS from that if I could. But I looked for that BIOS for probably six hours on the internet and could not find it. Texas Instrument is apparently still very protective of that property...what....35 years after it was released? Thanks for your response. It at least confirms what I suspected.

          1 Reply Last reply Reply Quote 0
          • K
            KevinsHope @herb_fargus
            last edited by KevinsHope

            @herb_fargus So...I have the BIOS now. I put it in the BIOS folder. When I try to start a rom now, it seems to be loading but then it seems to be cutting the video signal all together. I tried setting the video mode for the emulator to correct for this, but it is still just cutting the video signal when I load a ROM. Thanks for you help.

            herb_fargusH 1 Reply Last reply Reply Quote 0
            • herb_fargusH
              herb_fargus administrators @KevinsHope
              last edited by herb_fargus

              @kevinshope what's the rom name and filetype you're trying to play? Also can you verify the md5sum of your bios? Btw the Atari age forum has a pretty good community for ti99 emulation, one of their members wrote up a guide on how to create proper disks and whatnot to play them that I believe is linked on the wiki page

              If you read the documentation it will answer 99% of your questions: https://retropie.org.uk/docs/

              Also if you want a solution to your problems read this first: https://retropie.org.uk/forum/topic/3/read-this-first

              K 1 Reply Last reply Reply Quote 0
              • K
                KevinsHope @herb_fargus
                last edited by

                @herb_fargus The file is TI-994A.ctg. I do not know how to check the md5sum for the bios. I tried to follow the tutorial available at Atari Age long before I posted here, but I was unable to navigate some of the steps. Thanks for your help.

                1 Reply Last reply Reply Quote 0
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