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  • wilsonb
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    Post count: 17

    I have not either.. See my top post.

    wilsonb
    Participant
    Post count: 17

    What version of Retro Pie are you working with?

    wilsonb
    Participant
    Post count: 17

    goldenzippo , the Adafruite script will prob not work with your generic LCD. You would need specific drivers for that LCD. What I posted was for Adafruit 3.5 LCD

    wilsonb
    Participant
    Post count: 17

    Do you have the exact LCD I have with Raspberry 2 ?
    Use an older version of Retro Pie, pre 3
    I can boot mine up tomorrow and let you know what version I got working.
    Matter of fact, can give you most of the files to get it working.
    There is that automated script for LCD setup from Ada fruit (google).

    wilsonb
    Participant
    Post count: 17

    No, I went back to a previous version of Retro Pie and have it working nicely (mirroring LCD & HDMI out at same time).

    Have not tried it in a few months. The latest version avail when I posted this, broke things/ think it used the wrong kernel. No way could get it working.

    wilsonb
    Participant
    Post count: 17

    Thanks for the help.

    Where do you see mame4all-pi ?
    Im not seeing that.

    Were you referring to the whole package in general Mame4all-pi and not a config file?

    Thanks

    wilsonb
    Participant
    Post count: 17

    Thanks for the reply. Understand

    “:BTW: after hours of trying to get PiTFT 3.5″ LCD to work with RetroPie 3(latest version) – no go”

    Meaning, the screen stays white. I have followed many directions to the T..

    https://learn.adafruit.com/running-opengl-based-games-and-emulators-on-adafruit-pitft-displays/overview

    But this tells me it’s broke and not to bother with RetroPie 3(latest)
    ” IMPORTANT: recent updates to the Pi kernel & bootloader are incompatible with this guide — the hardware/software combination presented here DOES NOT WORK at the moment. We are working on a fix and will remove this message once things are getting along again. “

    wilsonb
    Participant
    Post count: 17

    [attachment file=”retropie and joust.jpg”]

    wilsonb
    Participant
    Post count: 17

    Went to RetroPi 3 using Raspberry Pi 2 + Adafruit piTFT 3.5 (480×320)

    And now can’t get LCD dispolay to work. I think it’s a new kernel.

    Anyone get this exact config to work?

    wilsonb
    Participant
    Post count: 17

    I would like to fill the LCD as much as possible/biggest so it’s usable.

    The only way I found so far is modifying the opt/retropie/configs/mame-mame4all/mame.cfg file;

    [config]
    artwork=yes
    samples=yes
    antialias=yes
    translucency=yes
    skiplines=0
    skipcolumns=0
    beam=1.0
    flicker=0.0
    gamma=1.0
    frameskip=auto
    ror=no
    rol=no
    flipx=no
    flipy=no
    samplerate=44200
    volume=0
    cheat=no
    #vector_width=640
    vector_width=480
    #vector_height=480
    vector_height=320

    kioskmode=no
    force_stereo=no
    # Anti-alias the display?
    display_smooth_stretch=yes
    # Stretches to fill screen (ONLY if display_smooth_stretch is enabled)
    display_smooth_stretch_full=yes
    display_border=0
    # display effect postprocessing: 0 none, 1 scanlines
    display_effect=0
    #Set a static resolution
    #resolution=400×240
    #resolution=480×320
    resolution=320×250
    #resolution=360×228

    wilsonb
    Participant
    Post count: 17

    Got it figured out by changing config.txt . (Lowering the speed= )
    Here is my config.txt for others with 3.5 LCD.


    # — end adafruit-pitft-helper Wed Jun 3 03:41:41 UTC 2015 —
    arm_freq=1000
    #core_freq=500
    sdram_freq=483
    over_voltage=6

    dtparam=i2c1=on

    #- added by adafruit-pitft-helper Wed Jun 17 17:26:46 CDT 2015 —
    [pi1]
    device_tree=bcm2708-rpi-b-plus.dtb

    [pi2]
    device_tree=bcm2709-rpi-2-b.dtb

    [all]
    dtparam=spi=on
    dtparam=i2c_arm=on

    dtoverlay=pitft35r,rotate=90,speed=49700000,fps=60

    wilsonb
    Participant
    Post count: 17

    Raspberry Pi 2
    Adafruit 3.5 PiTFT

    Same problem, screen is extremely shaky/wavy, and now my HDMI says out of sync(no display on monitor)
    BTW: Should this be at this resolution, since the pitxt is a 480
    hdmi_cvt=320 240

    config.txt
    # for more options see http://elinux.org/RPi_config.txt
    gpu_mem_256=128
    gpu_mem_512=256
    gpu_mem_1024=384

    overscan_scale=1
    gpu_mem=64
    dtparam=spi=on

    hdmi_force_hotplug=1
    hdmi_cvt=320 240 60 1 0 0 0
    hdmi_group=2
    hdmi_mode=87
    # — added by adafruit-pitft-helper Wed Jun 17 10:30:02 CDT 2015 —
    [pi1]
    device_tree=bcm2708-rpi-b-plus.dtb
    [pi2]
    device_tree=bcm2709-rpi-2-b.dtb
    [all]
    dtparam=spi=on
    dtparam=i2c1=on
    dtparam=i2c_arm=on

    # dtoverlay=pitft35r,rotate=90,speed=42000000,fps=20
    # — end adafruit-pitft-helper Wed Jun 17 10:30:02 CDT 2015 —

    dtoverlay=pitft35r,rotate=90,speed=80000000,fps=60

Viewing 12 posts - 1 through 12 (of 12 total)