Trouble with Touch Display

[mitchrh]

Hi, I'm very new to all this so feel free to talk to me like I'm a total idiot.

My girlfriend gifted me a Raspberry Pi for Christmas when I realized I didn't have a monitor that would work with it. I purchased a Raspberry Pi touch display and it arrived and I followed the directions and put it all together. I also bought an sd card with an install of Raspbian Jessie already installed on it as a time saver, so in theory the OS should be operational.

When I start it up the display remains black. I double checked that all the connections are good and I tried alternatively plugging the power just into the monitor's board or plugging both the pi and the board in in case it was a problem of voltage. Either way the pi lights up but the screen remains black.

Unless anyone has a good idea on what I may have missed I'm going to hit up the local shop and get a converter to plug it into one of my other monitors to see what happens. I'm really just wondering if I'm missing something so any advice would be welcome.

Thanks,
Mitch

[texy]

Hi Mitch and welcome to the forum.
There are 100's of different displays for the Pi, so if you can be more specific on which one you have, we may be able to help your further.
Texy

[mitchrh]

https://www.raspberrypi.org/products/ra ... h-display/ <--This one.

[mitchrh]

So I plugged the Raspberry Pi into the television with an HDMI cable and it works fine, so I've isolated the problem to the display. Does anyone have any ideas on why this isn't working or did I get a lemon?

Here's some photos. I think everything's hooked up correctly.

20160114_102331.jpg (55.24 KiB) Viewed 1284 times

20160114_102320.jpg (48.8 KiB) Viewed 1284 times

[texy]

Hmm, only check and double check the ribbon cable connections and power. Is there ANY signs of life on the display? Even when it has nothing displayed, ie a black screen, or if the output is defaulted to the HDMI output, you should still see a slight glow of the backlight round the edges. Have you tried powering the control board via the usb socket?

Texy

[creeves]

Hi, just wondering if this progressed any further. I too am running into the same exact issue. I've searched elsewhere and can only conclude there was some sort of bad batch that got released. Thanks for any info!

[alphanumeric]

Make sure you don't have the ribbon cable that goes to the DSI connector backwards. If it is, its the same as no cable being connected, all the contacts will be on the wrong side. Also make sure your no trying to power it from one of the Pi's USB ports. From the picture posted, it looks like your using the included jumper wires. They say you can do that, but I'm not so sure that's the way to go? It wasn't an option for me as I have a cobbler connected via a ribbon cable on the GPIO pins. I have mine powered separately, my Pi and my display each have their own Micro USB power cable. I'm using a 5V 10A power pack. I have other things connected as well and use this Pi for bread boarding break out boards. It's overkill, but I never have to worry about having enough power for everything connected. I had a black screen the first time I powered up and it turned out to be a power issue. I was trying to run it from the Pi. This was just a test setup to make sure it worked, not my final setup.

[alphanumeric]

Have you run sudo apt-get update, sudo apt-get upgrade, from the terminal prompt? You may have to update the firmware on the PI, depending on what model and how old it is. And how old you OS image is.