NES Cropping/Overscan Issue

dover19

I haven't noticed this issue with any other system so far, but there appears to be some kind of cropping or overscanning when I'm playing NES.

As you can see, Mario is sort of hiding behind some black bar on the left.

And here, there's clearly something being cropped out at the bottom.

You can see the F for the full tank of gas but the E at the bottom is clearly cropped out or something.

edmaul69

@dover19 there is another thread that mentions what to put in the nes retroarch.cfg to fix it. It is an issue with the fceumm emulator. It is fixed in the nestopia emulator.

dover19

@edmaul69 If you're talking about video_crop_overscan = false I already tried that but thanks.

dover19

Also, it tried nestopia and it fixed mario, but the bottom is still cropping.

edmaul69

@dover19
Edit: pic of how much is cutoff on all 4 sides. Read my next post

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edmaul69

@dover19 i just noticed it is cut off on all 4 sides. you need to adjust the overscan in /boot/config.txt

dover19

Actually that only affects EmulationStation, it never seems to affect the emulators. Also, what seems like black bars all around is just my black tv.

Lyle_JP

@dover19 On my pi it affects everything. Overscan is a system level setting.

dover19

I'm actually using overscan though, got the top and bottom at -16 cause I had black bars, but like I said, it only seems to affect the front-end.

edmaul69

@dover19 trust me, its your whole system. I noticed there are no black bars on the side. Thats why i know this is the problem. Change to a theme that has no black borders. Then set all 4 overscans to -25 so you see black on all 4 sides. Then start going down by increments of 5 until you get close to the edge. Then reduce down in increments of 1. Note that the sides and top/bottom might be different numbers.

mediamogul

@dover19

Is your overscan_scale= set to 1 in /boot/config.txt?

dover19

@edmaul69 so I followed these instructions and ended up with:
overscan_left=0
overscan_right=0
overscan_top=-19
overscan_bottom=-19

Also, yes my overscan_scale is set to 1.

Still though, it's cut at the bottom while playing NES. I see no difference whatsoever.

I'm sure I've seen before and I seem to remember having to put some code in the NES configuration.

edmaul69

@dover19 yeah not sure. I never had to add anything other than the overscan. So if you look at my pic you will see the top is getting cut off too.

dover19

I was finally able to fix this!

In case anyone else is going crazy playing with the boot overscan options and not getting anywhere with the NES cropping issue, here's what I had to do:

Edit the retroarch-core-options.cfg file located in /opt/retropie/configs/all.

Depending on what NES core you're using edit either fceumm_overscan = "enabled " or nestopia_overscan_v = "enabled ". Obviously, change enabled to disabled.

BuZz

@dover19 note you don't have to do this manually - it can be changed from within RGUI when in a game.