Official Raspberry Pi 7" touchscreen

de DJ Fabriek · Fri Sep 11, 2015 9:48 am

Hi, with the new raspberry wheezy it is possible to use this screen.

How can i make it work with QLC software?

mcallegari · Fri Sep 11, 2015 12:13 pm

Post a link to the product page please.
From that little picture I can't tell which type of display that is.
Thanks

janosvitok · Fri Sep 11, 2015 12:18 pm

https://www.raspberrypi.org/blog/the-ea ... i-display/

mcallegari · Fri Sep 11, 2015 12:38 pm

Ohhh so that's the official Raspberry Pi touchscreen !
FINALLY

Quite expensive though...

So do you already have it, tested it and checked that it doesn't work with the QLC+ image ?
Cause as far as I read from the blog post, you just need to do

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apt-get update
apt-get upgrade
reboot

It's a DSI display, so to see the picture it's most likely to tweak the config.txt file, but apparently it's not even needed.
Picture and touchscreen should work out of the box after updating the software.

de DJ Fabriek · Fri Sep 11, 2015 3:11 pm

Already try not working yet.. So its weekend and i have to work.. Make party with my other QLC raspberry!

I have to look at the config.txt... After the weekend

price 70,00 euro for the screen

mcallegari · Fri Sep 11, 2015 3:58 pm

So you've already done an apt-get upgrade and you don't see anything on the screen ?

uhmm...maybe the latest 4.x kernel is required.
I need to purchase one of those displays to check it. Problem is that it's going out of stock everywhere.

de DJ Fabriek · Sat Sep 12, 2015 3:03 pm

With this wheezy The screen works good
https://www.raspberrypi.org/downloads/raspbian/

mcallegari · Sat Sep 12, 2015 3:13 pm

Can you compare the config.txt files between Raspbian and QLC+ image ?
Can you see the kernel boot messages on the touchscreen or do you see only the graphic desktop ?

de DJ Fabriek · Sat Sep 12, 2015 3:15 pm

I will check tommorow.. Have to work now! Nice weekend!

pioneer · Sat Sep 12, 2015 6:51 pm

I updated and got the screen working, unfortunately the touch screen didn't work.

mcallegari · Sat Sep 12, 2015 8:57 pm

You updated what ? My image ?

Today I updated the whole image, including the kernel. Next images will ship version 4.1.6.
I realized they bundled a whole lot of new overlays. Maybe those are what make the touchscreen working.

Just do a ./rpi-update.sh

pioneer · Mon Sep 14, 2015 10:14 am

mcallegari wrote:You updated what ? My image ?

Today I updated the whole image, including the kernel. Next images will ship version 4.1.6.
I realized they bundled a whole lot of new overlays. Maybe those are what make the touchscreen working.

Just do a ./rpi-update.sh

Yes I ran ./rpi-update.sh and the screen stated working, unfortunately the touchscreen function didn't work, tried an apt-get update & upgrade after just to check and it still didn't work.
Also the image was upside down but that was an easy fix.

mcallegari · Mon Sep 14, 2015 10:14 am

pioneer wrote:Yes I ran ./rpi-update.sh and the screen stated working, unfortunately the touchscreen function didn't work, tried an apt-get update & upgrade after just to check and it still didn't work.
Also the image was upside down but that was an easy fix.

OK, so the kernel update is required to enable the DSI overlay.
The touchscreen doesn't work probably cause of Qt.
Please try the options of the paragraph "QLC+ parameters" of this article:
viewtopic.php?f=17&t=8814

I think I've read somewhere that the RPi TS sends mouse coordinates, so it probably has to be treated as such.

How did you fix the rotation ? Using a particular option in config.txt file ?

Thanks

de DJ Fabriek · Mon Sep 14, 2015 5:58 pm

Hi, how do you solved the upside down problem? (solved)
display_rotate=0 Normal
#display_rotate=2 180 degrees

I have try to change the config.txt that don't work..
Now i gonna change the setting from the qlc parameters

Frank · Mon Sep 14, 2015 5:58 pm

... shifted to the current end of this topic.

de DJ Fabriek · Mon Sep 14, 2015 6:58 pm

Change the settings from QLC parameters.. Touchscreen didn't work . also keyboard was not working anymore.

mcallegari · Mon Sep 14, 2015 8:13 pm

OK, thanks for the feedback.
I definitely need the device in my hands to understand how it can work with Qt.

de DJ Fabriek · Mon Sep 21, 2015 5:33 pm

@pioneer

Does your screen already works?

mcallegari · Mon Sep 21, 2015 5:33 pm

de DJ Fabriek wrote:Change the settings from QLC parameters.. Touchscreen didn't work . also keyboard was not working anymore.

Just received the display today and I understood what was the cause.
Basically the I2C0 bus must be available for the RPi touchscreen.
So, from my original image all you need to do is:
- apt-get update
- apt-get upgrade
- ./rpi-update.sh
- edit config.txt file and replace

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dtparam=i2c0,i2c1,spi

with

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dtparam=i2c1,spi

de DJ Fabriek · Mon Oct 05, 2015 11:51 am

Great thanks works good!!

Only thing is when i click simple desk the resolution is change n not right.