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Missing bottom of image

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sittingduck:
In some games I'm missing the bottom part of the screen, i.e. in Wardner where inventory isn't visible (see attached image). It's not an overscan problem, so adjusting things in the tv's service menu doesn't help for this particular issue. It's like the bottom part of the image isn't being rendered, but the super resolution seems to be correct. I'm running latest GM, Win 7 with a 5450 gfx card, a UMSA, and a Sony Trinitron TV. Any input appreciated.

haynor666:
If this a Sony TV then find option V slope and try changed it.

Additionally You could try methods:
https://forum.arcadecontrols.com/index.php/topic,148828.msg1638016.html#msg1638016
https://forum.arcadecontrols.com/index.php/topic,159586.msg1678392.html#msg1678392

makya:
This games in particluar is 240p @54Hz. This means we get additional lines in vertical porches (compared with a 240p @60). Probably GM distributes the lines to the back porch. You should force GM to distribute those lines or a part of those lines to the front porch. This will bring the picture up.

Substring:

--- Quote from: haynor666 on July 17, 2024, 05:25:39 am ---If this a Sony TV then find option V slope and try changed it.

Additionally You could try methods:
https://forum.arcadecontrols.com/index.php/topic,148828.msg1638016.html#msg1638016
https://forum.arcadecontrols.com/index.php/topic,159586.msg1678392.html#msg1678392

--- End quote ---
Wait, where is that V Slope ? In the service menu ?

Calamity:

--- Quote from: makya on July 18, 2024, 10:16:27 am ---This games in particluar is 240p @54Hz. This means we get additional lines in vertical porches (compared with a 240p @60). Probably GM distributes the lines to the back porch. You should force GM to distribute those lines or a part of those lines to the front porch. This will bring the picture up.

--- End quote ---

Your right about the extra lines causing the problem. However, GM distributes the lines evenly between both porches. It's the TV that screws centering when trying to (wrongly) fit the signal into one of the standards (PAL/NTSC). This could probably be compensated through the v-shift slider in GM's  UI.

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