RetroPie on Raspberry Pi - RetroArch

[Floob]

Hi,

Apologies if I'm a bit Off-topic here, but was hoping someone would have a clue about this.
I have a Raspberry Pi running RetroPie (http://blog.petrockblock.com/retropie/)

This all works well, but I'm trying to get to grips with the video output.

I'm editing the config.txt file here:
https://github.com/petrockblog/RetroPie ... d-overscan
http://elinux.org/RPiconfig#Video_mode_options

I have it set as:
hdmi_group=1
hdmi_mode=1
overscan_scale=1

But on a 26" LCD screen the output is pretty blocky and looks like this



I have a XRGB Mini, but I'm thinking I should be able to get this looking less blocky anyway?
I tried changing hdmi_mode=8 but then my TV didnt accept the signal and I had to put it through the XRGB, but then the output quality was just the same and was no different to the screenshot.

Any ideas?

[Fudoh]

Try HDMI Mode 4 with Overscan Top and Bottom set to 24.

[Floob]

Thanks very much for the tip, but it still appears quite blocky.



With my basic logic I thought that as the original system would have output these games in 240p that would be the output I would want from the Pi, but I guess not?
My config.txt is

Code: Select all

# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1

# 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=16
#overscan_right=16
overscan_top=24
overscan_bottom=24

# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720

# uncomment if hdmi display is not detected and composite is being output
#hdmi_force_hotplug=1

# uncomment to force a specific HDMI mode (this will force VGA)
hdmi_group=1
hdmi_mode=4
overscan_scale=1

# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2

# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4

# uncomment for composite PAL
#sdtv_mode=2

#uncomment to overclock the arm. 700 MHz is the default.
arm_freq=900

# for more options see http://elinux.org/RPi_config.txt
core_freq=250
sdram_freq=450
over_voltage=2
avoid_safe_mode=1
gpu_mem=256
overscan=1

[Fudoh]

With my basic logic I thought that as the original system would have output these games in 240p that would be the output I would want from the Pi, but I guess not?

but 240p is not a valid HDMI timing.

Your problem is more likely the scaling algorithm the emu uses. I don't know if you got any choice there.

[Floob]

I see, thanks for the info.

Here is a little clip of it:
https://www.youtube.com/watch?v=lAgeJB7S_JA

I guess ideally I need a more suitable display?

[Fudoh]

I would recommend a more suitable PC for emulation instead.

[Floob]

Ah! For anyone else wondering it seems 'shaders' are very popular for the RetroPie setup.
They do make a hell of a difference when using HD TVs.
http://blog.petrockblock.com/forums/top ... linesntsc/

[shmuppyLove]

Man you're making me want to mess around with my RasPi again ...

One issue I had with RetroPie was the horrible launcher. Are there alternatives? And it needs to be usable with just a controller (360 gamepad to be exact)

[Floob]

Man you're making me want to mess around with my RasPi again ...

One issue I had with RetroPie was the horrible launcher. Are there alternatives? And it needs to be usable with just a controller (360 gamepad to be exact)

Emulation Station?
Its had a decent overhaul:
http://blog.petrockblock.com/2014/07/01 ... -retropie/

It has great compatibility with PS3, Xbox 360 and USB 'retro' controllers now.
From about 8min 20 secs here:
https://www.youtube.com/watch?v=j_Jk8up_Aqw

Its in the main setup now

[shmuppyLove]

Emulation Station?
Its had a decent overhaul:
http://blog.petrockblock.com/2014/07/01 ... -retropie/

Sweet, I hadn't been following the project, serves me right

[Floob]

Some help videos on setting this up:
https://www.youtube.com/channel/UCdSu9Y ... -0g/videos