BMS Doug
Posts: 4423
Joined: Thu Mar 27, 2014 2:42 pm
Location: London, UK

Re: Pi Supply Gert VGA 666 shipping.

Wed Dec 24, 2014 1:23 am

I've been trying all night (well since 9pm) to get this working, without any joy.

A+ with usb hub with wifi, keyboard and mouse.

OS is the latest (09/09/14) raspbian, freshly loaded to sd
(Several fresh sd cards waiting to go.)
DirkS wrote: 1. if necessary install rpi-update:

Code: Select all

sudo apt-get update
sudo apt-get install rpi-update
done.

2. update to current firmware / kernel:

Code: Select all

sudo rpi-update
No need to reboot yet.
done.
Rebooted successfully at this stage on 2nd sd card.


3. Download configuration file for the board:

Code: Select all

wget https://github.com/fenlogic/vga666/blob/master/setup/dt-blob-dpi.bin
sudo mv dt-blob-dpi.bin /boot/dt-blob.bin
done

4. Add settings for the board to /boot/config.txt

Code: Select all

sudo nano /boot/config.txt
and add the following lines

Code: Select all

enable_dpi_lcd=1
display_default_lcd=1
This will enable the board and make it the default display
done

5. It is necessary to blacklist spi and i2c, otherwise the vga666 will not function correctly.

Code: Select all

sudo nano /etc/modprobe.d/vga666-blacklist.conf
and add these lines

Code: Select all

blacklist spi-bcm2708
blacklist i2c-bcm2708
done

6 Now reboot; if everything is ok then it should come up with VGA resolution (640x480)
blank screen except for "no pc input"

7 Now adjust the resolution for your monitor (see http://www.raspberrypi.org/documentatio ... fig-txt.md)
For the vga board use 'dpi_' instead of 'hdmi_'
For example, adding these lines to /boot/config.txt

Code: Select all

dpi_group=2
dpi_mode=35
Would be the equivalent of hdmi_group 2 (DMT), mode 35 (1280 x 1024 @ 60Hz)
And it works nicely with my old Acer AL1711 monitor :)
can't access these.

HTH
Dirk.
Doug.
Building Management Systems Engineer.

DirkS
Posts: 10641
Joined: Tue Jun 19, 2012 9:46 pm
Location: Essex, UK

Re: Pi Supply Gert VGA 666 shipping.

Wed Dec 24, 2014 8:38 am

BMS Doug wrote:I've been trying all night (well since 9pm) to get this working, without any joy.

A+ with usb hub with wifi, keyboard and mouse.
Went through the whole procedure on an A+ and also ran into problems.
I just noticed that the dt-blob.bin on my B+ is different from the one on my A+... investigating.

Gr.
Dirk

DirkS
Posts: 10641
Joined: Tue Jun 19, 2012 9:46 pm
Location: Essex, UK

Re: Pi Supply Gert VGA 666 shipping.

Wed Dec 24, 2014 8:46 am

DirkS wrote:
BMS Doug wrote:I've been trying all night (well since 9pm) to get this working, without any joy.

A+ with usb hub with wifi, keyboard and mouse.
Went through the whole procedure on an A+ and also ran into problems.
I just noticed that the dt-blob.bin on my B+ is different from the one on my A+... investigating.
Mea culpa...
I pasted the wrong link to the dt-blob file.
Step 3 should be

Code: Select all

wget https://raw.githubusercontent.com/fenlogic/vga666/master/setup/dt-blob-dpi.bin
sudo mv dt-blob-dpi.bin /boot/dt-blob.bin
HTH
Dirk.

User avatar
DougieLawson
Posts: 41321
Joined: Sun Jun 16, 2013 11:19 pm
Location: A small cave in deepest darkest Basingstoke, UK
Contact: Website Twitter

Re: Pi Supply Gert VGA 666 shipping.

Wed Dec 24, 2014 8:52 am

Is it a full DTB blob or an overlay?

In /boot/config.txt add

Code: Select all

device_tree=bcm2708-rpi-b.dtb
device_tree_overlay=overlays/bcm2708-rpi-b-overlay.dtb
and you can override the default names for the blobs.
Any language using left-hand whitespace for syntax is ridiculous

Any DMs sent on Twitter will be answered next month.
Fake doctors - are all on my foes list.

Any requirement to use a crystal ball or mind reading will result in me ignoring your question.

BMS Doug
Posts: 4423
Joined: Thu Mar 27, 2014 2:42 pm
Location: London, UK

Re: Pi Supply Gert VGA 666 shipping.

Wed Dec 24, 2014 10:29 am

DirkS wrote:
DirkS wrote:
BMS Doug wrote:I've been trying all night (well since 9pm) to get this working, without any joy.

A+ with usb hub with wifi, keyboard and mouse.
Went through the whole procedure on an A+ and also ran into problems.
I just noticed that the dt-blob.bin on my B+ is different from the one on my A+... investigating.
Mea culpa...
I pasted the wrong link to the dt-blob file.
Step 3 should be

Code: Select all

wget https://raw.githubusercontent.com/fenlogic/vga666/master/setup/dt-blob-dpi.bin
sudo mv dt-blob-dpi.bin /boot/dt-blob.bin
HTH
Dirk.
Yup, that got it, now I have the message
Unsupported signal, adjust your PC output
So I just have to tweak some settings.

Edit: Tweaking did work btw, My (fairly old) TV only supports 1360x768 as a VGA input so when I set:

Code: Select all

dpi_group=2
dpi_mode=39 
It worked.
Doug.
Building Management Systems Engineer.

Guru7
Posts: 1
Joined: Sun Dec 20, 2015 1:15 pm

Re: Pi Supply Gert VGA 666 shipping.

Sun Dec 20, 2015 1:20 pm

can i use my raspberry pi 2 model. it has 40 pin GPIO

User avatar
rpdom
Posts: 18743
Joined: Sun May 06, 2012 5:17 am
Location: Chelmsford, Essex, UK

Re: Pi Supply Gert VGA 666 shipping.

Sun Dec 20, 2015 3:44 pm

Guru7 wrote:can i use my raspberry pi 2 model. it has 40 pin GPIO
Yes.

Return to “HATs and other add-ons”