Go to advanced search

by elkberry
Sun Jan 08, 2017 5:52 pm
Forum: Networking and servers
Topic: How to start hostap, dhcpcd, isc-dhcpd-server [SOLVED]
Replies: 12
Views: 5191

Re: Raspbian Jessie: How to start hostap, dhcpcd, isc-dhcpd-

David, erm, I'm on Raspbian Jessie and that is using the systemd-based initialization. I've seen that the ISC DHCP server gets a generated unit service description, but dhcpcd has its dedicated unit service description. So my question is: how do I get the order right? Either I did the usual after= w...
by elkberry
Sun Jan 08, 2017 5:22 pm
Forum: Networking and servers
Topic: Multiple USB wlan dongles as separate APs?
Replies: 0
Views: 305

Multiple USB wlan dongles as separate APs?

After quite some exhaustive searching I still couldn't find any information about how to set up two separate APs, say wlan1 and wlan2. I tried with a second hostapd.conf using different interface= and ssid= values. But this does not work. After restarting hostapd, wlan2 stays in managed mode instead...
by elkberry
Sun Jan 08, 2017 5:19 pm
Forum: Networking and servers
Topic: How to start hostap, dhcpcd, isc-dhcpd-server [SOLVED]
Replies: 12
Views: 5191

Re: Raspbian Jessie: How to start hostap, dhcpcd, isc-dhcpd-

David, there is no conflict, as I'm running dhcpcd (the client) on the upstream wlan0 interface. And isc-dhcp-server is running solely on the downstream wlan1 interface. In my setup, wlan0 is in managed mode, as it connects to an upstream AP. In contrast, wlan1 is the downstream AP. There's no probl...
by elkberry
Sun Jan 08, 2017 4:15 pm
Forum: Networking and servers
Topic: How to start hostap, dhcpcd, isc-dhcpd-server [SOLVED]
Replies: 12
Views: 5191

How to start hostap, dhcpcd, isc-dhcpd-server [SOLVED]

Hi, I've set up my RasPi model 3 with wlan0 to connect to an upstream router, and wlan1 to offer connectivity to downstream IP nodes. I'm configuring the static IPv4 addresses for the downstream wlan1 through dhcpcd.conf (and not /etc/network/interfaces). I have installed: hostap(d), dhcpcd (upstrea...
by elkberry
Sat Jan 07, 2017 2:30 pm
Forum: Networking and servers
Topic: compiling recent radvd on Jessie?
Replies: 3
Views: 663

Re: compiling recent radvd on Jessie?

V1 refuses to start and segfaulting in some conditions, albeit the configuration file has passed checks.
by elkberry
Sat Jan 07, 2017 10:42 am
Forum: Networking and servers
Topic: compiling recent radvd on Jessie?
Replies: 3
Views: 663

compiling recent radvd on Jessie?

As the radvd that is part of Raspbian Jessie is quite outdated (1.x vs 2.x), I want to compile my own radvd from sources. In principle, this works, but with a big gotcha: there is an issue with the if.h header files so radvd cannot be compiled with the function of learning the prefix configuration o...
by elkberry
Fri Jan 06, 2017 8:42 pm
Forum: Official Foundation Display
Topic: 7" LCD: later switch on HDMI 1080p@30 after boot? [SOLVED]
Replies: 3
Views: 957

Re: 7" LCD: how to later switch on HDMI 1080p 30fps after bo

So I added this to my /boot/config.txt to force 1080p30: hdmi_group=1 hdmi_mode=34 And no hdmi_force_hotplug. I noticed that my HDMI recorder is picky at first, and it needs to be switched on with the HDMI connection being already done, as it otherwise does not establish the HDMI link. Lateron, it w...
by elkberry
Fri Jan 06, 2017 8:15 pm
Forum: Official Foundation Display
Topic: 7" LCD: later switch on HDMI 1080p@30 after boot? [SOLVED]
Replies: 3
Views: 957

Re: 7" LCD: how to later switch on HDMI 1080p 30fps after bo

Gordon, thank you very much for your reply! Sorry to ask, but I'm yet not fully understanding what the difference is between forcing HDMI at boot and supplying an edid file? Is there such a thing as a default edid file? And when I'm using the edid file generated from my HDMI recorder, can I still sw...
by elkberry
Fri Jan 06, 2017 7:03 pm
Forum: Official Foundation Display
Topic: 7" LCD: later switch on HDMI 1080p@30 after boot? [SOLVED]
Replies: 3
Views: 957

7" LCD: later switch on HDMI 1080p@30 after boot? [SOLVED]

I'm using a RasPi model 3 with the 7" touch screen installed. I boot without an HDMI device attached. Now, when I'm later attaching an HDMI recorder (Hauppauge HD PVR Rocket), the recorder doesn't accept the frame format sent, which seems to be 720x480. Please note that when I'm connecting the HDMI ...
by elkberry
Wed Jan 04, 2017 6:51 pm
Forum: Advanced users
Topic: Usable voltage 7in 12v pi display
Replies: 3
Views: 583

Re: Usable voltage 7in 12v pi display

It could be better in the end to write off the display you already purchased, and go for the official 7" LCD from the Foundation, than to invest even more in 5-to-12V DC-DC converter. The problem is probably to find a decent one that outputs clean 12V without too much ripple and within the limits yo...
by elkberry
Sun Jan 01, 2017 4:10 pm
Forum: Official Foundation Display
Topic: screen recording of 7" Touch LCD on Raspberry Pi 3 [SOLVED]
Replies: 3
Views: 1186

Re: screen recording of 7" Touch LCD on Raspberry Pi 3 [SOLV

The hardware-based attempt also works as I found out only after repeated searching, using an HDMI recorder and cloning the LCD to the HDMI display. AndyD's incredibly fine raspi2raspi works extraordinarily well even as a systemd service in the background. LCD-to-HDMI cloning seems to be done mostly ...
by elkberry
Sun Jan 01, 2017 2:22 pm
Forum: Advanced users
Topic: How to run HDMI and Official Raspberry Pi Display (DSI) simu
Replies: 30
Views: 8663

Re: How to run HDMI and Official Raspberry Pi Display (DSI)

AndyD, thank you very, very much for raspi2raspi! It took me some time to find this nugget, but it worked immediately right out-of-the-box on my RasPi 3 with official 7" Touch LCD on most recent Raspbian Jessie. I don't get it why raspi2raspi isn't a sticky post in the official Touch Display sub for...
by elkberry
Sun Jan 01, 2017 1:09 pm
Forum: Official Foundation Display
Topic: Suitable USB cable powering Pi3 and 7" Touch LCD [SOLVED]
Replies: 15
Views: 8351

Re: Suitable USB cables for powering Pi3 and 7" Touch LCD?

As I intend to use my LCD-RasPis for demonstration purposes, I'm using the open frames from Pimoroni (in different colours, of course). This way, people can clearly see the RasPis, as well as the LCD adaptor board below. Access to the USB connectors is still possible, as is swapping micro SD cards; ...
by elkberry
Sat Dec 31, 2016 8:33 pm
Forum: Official Foundation Display
Topic: Suitable USB cable powering Pi3 and 7" Touch LCD [SOLVED]
Replies: 15
Views: 8351

Re: Suitable USB cables for powering Pi3 and 7" Touch LCD?

Gordon, thank you very much for this link, I tried to google such a suitable cable but somehow missed that source. Ordering should be no problem, more so before the Brxt. Is the cable you link to much better than ordinary short adapter cables? I'm asking because I've tried with one of the usual shor...
by elkberry
Sat Dec 31, 2016 8:24 pm
Forum: Official Foundation Display
Topic: Suitable USB cable powering Pi3 and 7" Touch LCD [SOLVED]
Replies: 15
Views: 8351

Re: Suitable USB cables for powering Pi3 and 7" Touch LCD?

alphanumeric, this is an interesting alternative you are pointing out, thank you for this idea: I wasn't aware of USB micro plugs either for DIY soldering, or with barrel jack socket. I've followed the link and searched the site. Unfortunately, they don't have any ready-made heavy gauge cables on sa...
by elkberry
Fri Dec 30, 2016 6:17 pm
Forum: Official Foundation Display
Topic: screen recording of 7" Touch LCD on Raspberry Pi 3 [SOLVED]
Replies: 3
Views: 1186

screen recording of 7" Touch LCD on Raspberry Pi 3 [SOLVED]

Since I found a lot of potentially slightly misleading posts about screen recording in combination with the 7" Touch LCD, here are my results (for the record). Yes, screen recording of the 800×480 screen (Pixel desktop) at 25fps on the Raspberry Pi Model 3 itself works sufficiently. I've used Vokosc...
by elkberry
Wed Dec 28, 2016 9:40 pm
Forum: Official Foundation Display
Topic: Suitable USB cable powering Pi3 and 7" Touch LCD [SOLVED]
Replies: 15
Views: 8351

Suitable USB cable powering Pi3 and 7" Touch LCD [SOLVED]

I'm struggling with hassle-free powering a Raspberry Pi Model 3 together with the official 7" touch LCD, avoiding the yellow flash of insufficient power supply in the display during operation. My Raspberry Pi Model 3 has two USB devices attached: an Edimax WLAN dongle, as well as a Logotech universa...

Go to advanced search