[wilsonb]

I have not either.. See my top post.

[wilsonb]

What version of Retro Pie are you working with?

[wilsonb]

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]

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]

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]

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]

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]

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

[wilsonb]

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]

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]

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]

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

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