Underscan while playing games, but not on Emulationstation
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I've had underscan issues and fixed those by tweaking the values in /boot/config.txt, so both Emulationstation an Kodi are running without black bars.
But when I start a game the black bars return, doesn't matter which emulator.
Is there a way to fix this?changes to my config.txt consists of
overscan_left=-8
overscan_right=-8
overscan_top=-18
overscan_bottom=-18
overscan_scale=1 -
@GetKeyOpenDoor when you choose a game are you pressing a button to go into the configuration to change video settings? If you have a 1080p tv you need to set it to 1920x1080. Anything less like say 640x480 gives you bars on the top and bottom.
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@edmaul69 I only changed the framebuffer size, tried messing with video display setting for n64 (set it to 640x480) but after I found that it makes no difference compared to a higher res i reverted it.
For the other emu's i haven't touched the video settings.edit: Just tested 1920*1080 and still have small black bars top and bottom
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@GetKeyOpenDoor yeah n64 is different in that way but retroarch emulators (99% of the emulators) will go full top to bottom if you set the correct video output. (Maybe not psx and psp though) Most other emus do as well.
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@edmaul69 I tested with GBA on 1920*1080, but still a little underscan.
I'll test some other emu's later. -
Tested with lr-catsfc, lr-snes9x, lr-mgba and lr-picodrive
All still have a little bit underscan with the video mode set to 1920*1080 (or anything else) -
@GetKeyOpenDoor ok so looking at my config.txt i have the overscan settings set but i have disable overscan hashtagged out. So i would try that if you dont.
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@edmaul69
#disable_overscan=1anddisable_overscan=0are exactly the same thing, shouldn't make a difference for this case. It's just for enabling/disabling your scan settings.
I mean, if I disable it, there are huge black bars top/bottom/let/right on both emulationstation and kodi. With these setting they are gone, and only small bars are present on emulators -
@GetKeyOpenDoor so are you pressing "a" or whatever is button "0" after you select a game to go into the configuration and changing the video output there? I assume you are but just double checking.
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@edmaul69 You mean the runcommand? Where you press a button and then you come into the blue screen window where you can select emu's, resolution, videomode etc.
Yeah. I tested several emu's there with 1920*1080 video mode -
@GetKeyOpenDoor ok. I have no clue. Have you tested on another tv?
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@edmaul69 I don't have another tv to test on right now.
It's not a major problem though, as the underscan on emu's is a lot less than emulationstation on first setup. It's just weird that fixing the underscan doesn't necessarily fixes it everywhere. -
@GetKeyOpenDoor it is weird to me as well. I havent had an issue myself on the tvs i have tested on. You could try messing with the aspect and picture buttons on your tv's remote. Some tvs you can completely remove the black bars that way.
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@GetKeyOpenDoor could you post a photo of the issue please?
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@dankcushions I've added the small red lines to point out the underscan because it was pretty hard to get a clear picture
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@GetKeyOpenDoor that is very small :)
IMO revert all your runcommand settings to default (which I think you already have?)
you have to be careful as some games do have borders. eg, super street fighter 2 on the SNES has a small border (as it did on CRT tvs). i've been using for my tests super mario world on lr-snes9x-next, and that game goes all the way to the edge for me (just like emulationstation). there's also a setting
video_crop_overscan = "true"in my/opt/retropie/configs/all/retroarch.cfgbut that may just be the default.my config.txt settings are:
# uncomment this if your display has a black border of unused pixels visible # and your display can output without overscan # disable_overscan=1 # uncomment the following to adjust overscan. Use positive numbers if console # goes off screen, and negative if there is too much border overscan_left=-8 overscan_right=-8 overscan_top=-24 overscan_bottom=-24 overscan_scale=1i doubt those left/right/top/bottom numbers will be right for your tv, but i just kept tweaking them until emulationstation went right to the edge (and not over).
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@dankcushions It's is very small, yes. Tbh it's hardly noticeable if you don't pay attention to it and just play the games. It's just that I was wondering why fixing the bigger underscan issues I had didn't completely fix this. (Because it's present on all emu's I tested)
Leaving me to believe the way emulators render their images is different from Emulationstation/Kodi, or something (not really sure what I'm talking about lol), so I thought there were maybe separate setting somewhere you could edit for emu's.video_crop_overscan = "true"is also present in myall/retroarch.cfg -
@dankcushions yeah those settings are a good start. For both tv's i have hooked my pi to use -5 -5 -25 -25
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