Underscan while playing games, but not on Emulationstation

GetKeyOpenDoor

@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

edmaul69

@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.

GetKeyOpenDoor

@edmaul69 I tested with GBA on 1920*1080, but still a little underscan.
I'll test some other emu's later.

GetKeyOpenDoor

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)

edmaul69

@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.

GetKeyOpenDoor

@edmaul69 #disable_overscan=1 and disable_overscan=0 are 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

edmaul69

@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.

GetKeyOpenDoor

@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

edmaul69

@GetKeyOpenDoor ok. I have no clue. Have you tested on another tv?

GetKeyOpenDoor

@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.

edmaul69

@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.

dankcushions

@GetKeyOpenDoor could you post a photo of the issue please?

GetKeyOpenDoor

@dankcushions I've added the small red lines to point out the underscan because it was pretty hard to get a clear picture

dankcushions

@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.cfg but 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=1

i 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).

GetKeyOpenDoor

@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 my all/retroarch.cfg

edmaul69

@dankcushions yeah those settings are a good start. For both tv's i have hooked my pi to use -5 -5 -25 -25