I can not use a 5inch lcd

caffecomborras

@glennlake said in I can not use a 5inch lcd:

Your screen is manufactured by Waveshare. I am using a similar Waveshare 5 in screen but they are very close. Sounds like you know what your doing with the hardware as your screen works with raspian so we know the screen is OK. If you can boot up your retropie (just can't see it on your 5 in screen) you can ssh into the pi and check the file config.txt in the boot folder. Look for the lines"hdmi_force_hotplug=1" and "hdmi_safe=1" and see if they are commented out. On my Pi3 with retropie 3.7 they are not in use but you could try changing them to "safe mode". I hope this helps. One thing I thought of. Can you see your retropie on a large hdmi tv? Let me know. I am always glad to help.

this and the script inside the config.txt

"

For more options and information see

http://www.raspberrypi.org/documentation/configuration/config-txt.md

Some settings may impact device functionality. See link above for details

Uncomment if you get the picture on HDMI is the default "safe" mode

1 = hdmi_safe

Uncomment this if your display has a black border of unused pixels visible

And can output your display without overscan

1 = disable_overscan

Uncomment The Following to adjust overscan. Use positive numbers if console

Goes off screen, and negative if there is too much border

= 16 overscan_left

= 16 overscan_right

= 16 overscan_top

= 16 overscan_bottom

Uncomment to force the size console. By default it will be display's size minus

Overscan.

Framebuffer_width = 1280

Framebuffer_height = 720

Uncomment if hdmi is not detected and display composite is being output

1 = hdmi_force_hotplug

Uncomment to force the HDMI specific mode (this will force VGA)

1 = hdmi_group

1 = hdmi_mode

Uncomment to force the HDMI mode rather than DVI. This can make audio work in

DMT (computer monitor) modes

2 = hdmi_drive

Uncomment to Increase signal to HDMI, if you have interference, blanking, or

On display

4 = config_hdmi_boost

Uncomment for composite PAL

2 = sdtv_mode

#uncomment to overclock the arm. 700 MHz is the default.

= 800 arm_freq

Uncomment some or all of These to enable the optional hardware interfaces

Dtparam i2c_arm = = on

Dtparam i2s = = on

Dtparam = spi = on

Uncomment this to enable the lirc-RPI module

Dtoverlay = lirc-RPI

Additional overlays and parameters are documented / boot / Overlays / README

Enable audio (loads snd_bcm2835)

dtparam = audio = on

gpu_mem_256 = 128
gpu_mem_512 = 256
gpu_mem_1024 = 256
overscan_scale = 1 "

what is that you say?

glennlake

@caffecomborras We can't read your file correctly when it is just cut and paste. Please read "https://retropie.org.uk/forum/topic/3/read-this-first" and "http://commonmark.org/help/". Those hashtags are very important as any line that starts with in is ignored by the program.

caffecomborras

It is the first time I use a forum to get doubts. I did as you said and still did not work

caffecomborras

I solved a problem but now I have another. the already image appears on the screen . but it appears only in half of the screen. http://postimg.org/image/8wrxbrl0r/
someone can helpme?

glennlake

@caffecomborras Here is a link to a youtube video that explaines the setup of your 5 in screen "

". It looks different because it gets it power from the gpio pins but the setup is the same. I don't use the touch screen so all I did is add these 3 lines to the bottom of the file /boot/config.txt.

hdmi_group=2
hdmi_mode=87
hdmi_cvt 800 480 60 6 0 0 0

I haven't tried the touch screen so I don't know how that works.

Hope this helps

caver01

@caffecomborras said in I can not use a 5inch lcd:

I solved a problem but now I have another. the already image appears on the screen . but it appears only in half of the screen. http://postimg.org/image/8wrxbrl0r/
someone can helpme?

Also, your screenshot has a rainbow box in the corner. Your Pi is under powered. The rainbow colored box indicates low voltage.

caffecomborras

Thank you all for your help . finally after many attempts succeeded. thank you so much

glennlake

@caffecomborras Congratulation! Glad we could help. We have all gone down this path. Some of us have just traveled farther than others.

Alessio

@caffecomborras said in I can not use a 5inch lcd:

Thank you all for your help . finally after many attempts succeeded. thank you so much

I have the same problem with the same screen. Can you please explain me how you solved? I have modified the config.txt but without success...

Alessio

Solved! Many thanks to all

juankaever

@caffecomborras

Hi, i have the same problem with my screen, I search in a lot of sites, but the size is correct, but the color is strange, tell me please how you resolved this???
I read the guide retropie, but i try all combination, and I got teh result of yours pics.

Thanks, please respond.

rxone

@juankaever

for 5 inch LCD

edit on /boot/config.txt.

search, replace and add this

hdmi_group=2
hdmi_mode=87
hdmi_cvt 800 480 60 6 0 0 0
hdmi_drive=1

save and try boot again