Go to advanced search

by elkberry
Sat Jul 01, 2017 6:47 pm
Forum: Troubleshooting
Topic: HDMI projector problems
Replies: 16
Views: 3113

Re: HDMI projector problems

In case you want to clone the 7" Touch LCD to HDMI, this is already possible. You can use raspi2raspi for this. I'm using raspi2raspi to directly record onto an HDMI recorder in FullHD. Albreit due to cloning, the 800x480 LCD gets scaled up to 1920x1080. While the raspi2raspi tool unfortunately isn'...
by elkberry
Thu Jun 15, 2017 8:45 pm
Forum: Official Foundation Display
Topic: Problem with Raspbian PIXEL and the official 7" Touch Screen
Replies: 18
Views: 5444

Re: Problem with Raspbian PIXEL and the official 7" Touch Sc

It even says "interlaced", not that this seem to make any sense, unless that's what the old analog composite connector will spit out?

While the LCD isn't exactly 16:9, it's close enough for many purposes, such as using in HD or FullHD video; but it's definitely not 4:3.
by elkberry
Wed Jun 14, 2017 6:18 pm
Forum: Official Foundation Display
Topic: Problem with Raspbian PIXEL and the official 7" Touch Screen
Replies: 18
Views: 5444

Re: Problem with Raspbian PIXEL and the official 7" Touch Sc

How did you check the resolution? Using raspi-config gives wrong information, as has been documented already in this subforum. If you would check using xdpyinfo then you would get 800x480. Also, when cloning the display buffer using a tool like raspi2raspi you would see that the LCD display is run a...
by elkberry
Wed Jun 14, 2017 6:14 pm
Forum: Official Foundation Display
Topic: Screen resolution
Replies: 10
Views: 24314

Re: Screen resolution

No, this is misinformation. The 7" Touch LCD has 800x480 true resolution. I know from my screen recordings, both from display memory by letting the VCPU copying the LCD display onto the HDMI output, and from taking shots using a FullHD video cam, then checking both shots closely. Yes, the LCD is 800...
by elkberry
Mon Jun 12, 2017 6:46 am
Forum: Advanced users
Topic: are start.elf & bootcode.bin is close soure?
Replies: 30
Views: 3936

Re: are start.elf & bootcode.bin is close soure?

Heydt, didn't realized this is masked rom, thank you for the explanation!
by elkberry
Sat Jun 10, 2017 6:55 am
Forum: Advanced users
Topic: are start.elf & bootcode.bin is close soure?
Replies: 30
Views: 3936

Re: are start.elf & bootcode.bin is close soure?

What about switching off IPv4 netboot and going (as an option) IPv6-only for netboot for those specific cases? And only when the OS is up it brings in IPv4 back again?
by elkberry
Sun Jun 04, 2017 12:19 pm
Forum: Troubleshooting
Topic: Pi Randomly Uses APIPA Address Instead of DHCP Reserved IP?
Replies: 4
Views: 1430

Re: Pi Randomly Uses APIPA Address Instead of DHCP Reserved

Check your wireless access to see if your Pi Zero gets it, and that the DHCP server on your network responds (quickly). You may also want to check your Wifi dongle, maybe it develops problems? I had a wired Ethernet dongle that didn't work, so for whatever reason your wireless dongle could also be p...
by elkberry
Tue May 30, 2017 7:58 pm
Forum: General discussion
Topic: RTC pHAT/SHIM that can be used with Pibow Zero W case?
Replies: 1
Views: 725

RTC pHAT/SHIM that can be used with Pibow Zero W case?

I'm looking for a RTC pHAT or shim that can be used with a Pimoroni Pibow Zero W case, and long header, so I can install another pHAT on top, such as Pimoroni's Scroll pHAT HD. Any suggestions? AB electronic's RTC Pi Zero has its battery on the bottom side, so it most probably conflicts with the Pib...
by elkberry
Sun May 28, 2017 6:46 pm
Forum: Troubleshooting
Topic: Trouble with headless operation on RPi 0
Replies: 9
Views: 1143

Re: Trouble with headless operation on RPi 0

Just a thought: did you put the (empty) ssh file onto the boot partition or did you pit it into /boot/ on the root partition? Only the first will work. I'm asking because your wording could refer to both variants.
by elkberry
Sun May 28, 2017 3:52 pm
Forum: Networking and servers
Topic: raspberrypi.local recognized for ssh but not http
Replies: 3
Views: 3613

Re: raspberrypi.local recognized for ssh but not http

Which webbrowser on what platform do you use? As far as I know, especially Chrome/Chromium, Firefox, and others come with their own DNS "clients" which play all kind of tricks. This means that they don't necessarily use the mDNS resolver of the OS they're installed on. In contrast, ssh uses the glib...
by elkberry
Sun May 28, 2017 3:42 pm
Forum: Troubleshooting
Topic: Pi Zero W & OTG gadget issues
Replies: 2
Views: 1178

Re: Pi Zero W & OTG gadget issues

The kernel error message "dwc2_hsotg_enqueue_setup: failed queue (-11))" doesn't seem to be a reliable indication that there is something wrong with USB slave operation (this is what gadget mode actually is). I saw this error message on three out of four RPi Zero Ws which also didn't work at first i...
by elkberry
Sat May 27, 2017 3:42 pm
Forum: Advanced users
Topic: [Solved] Issues with root=PARTUUID= in cmdline.txt at boot
Replies: 6
Views: 12890

Re: [Solved] Issues with root=PARTUUID= in cmdline.txt at bo

PARTUUID != UUID The new Jessie images as of April 2017 finally mount by PARTUUID, which is 32+8 bits, instead of UUID,a which is 128 bits. See also https://www.raspberrypi.org/forums/viewtopic.php?p=1161764#p1161764 They work great, especially when you clone images from mSD to USB memory thumb driv...
by elkberry
Fri May 26, 2017 6:17 pm
Forum: Troubleshooting
Topic: Unable to install screen drivers
Replies: 3
Views: 1560

Re: Unable to install screen drivers

Erm, your LCD vendor only supports Raspbian , as can be seen from the github repo you link to, but you seem to be using NOOBS (as this comes with a totally different partition scheme that has mmcblk0p6). Flash a fresh Raspbian image onto the mSD card, then run the LCD setup script again, and cross y...
by elkberry
Fri May 26, 2017 6:12 pm
Forum: Troubleshooting
Topic: CSI trouble
Replies: 6
Views: 606

Re: CSI trouble

No, unfortunately I don't know. If your Pi was powered up when this happened, you might have instead shorted lanes, but who knows? As the cam still works, but your Pi doesn't like to talk to it anymore, while another Pi does, I'm afraid let's call it a day and move on.
by elkberry
Fri May 26, 2017 1:19 pm
Forum: Troubleshooting
Topic: Cloning problems
Replies: 30
Views: 3918

Re: Cloning problems

As for speed, see https://www.pidramble.com/wiki/benchmarks/microsd-cards . Performance can vary greatly, but the mSD card price may not be the best indication, unless it's a dumpster dive price. I had used Toshiba EXCERIA 16GB class U1 cards with mediocre performance. When my colleague gave me his ...
by elkberry
Fri May 26, 2017 12:57 pm
Forum: Troubleshooting
Topic: CSI trouble
Replies: 6
Views: 606

Re: CSI trouble

Sounds like you damaged your CSI connector on the board. You may want to inspect it close for any visible damage, but I'm afraid that you may have induced a hair crack around the bounds of the connector where it is soldered to the board. This is on the assumption that you used some force to pull out...
by elkberry
Fri May 26, 2017 12:24 pm
Forum: Troubleshooting
Topic: Unable to install screen drivers
Replies: 3
Views: 1560

Re: Unable to install screen drivers

`root=/dev/mmcblk0p6` doesn't make any sense to me when on Raspbian, as there are exactly two partions, p1 for /boot, and p2 for root filesystem. p6 is from some other installation (NOOBS, per chance?)
by elkberry
Fri May 26, 2017 12:19 pm
Forum: Troubleshooting
Topic: Unable to install screen drivers
Replies: 3
Views: 1560

Re: Unable to install screen drivers

Looking at the installation scripts your LCD vendor provides: argh. They just overwrite the boot config files with their own versions, thus breaking anything. They should just modify the existing boot and commandline files. Why? Because as of April 2017, Raspbian has finally switched over to mountin...
by elkberry
Fri May 26, 2017 12:13 pm
Forum: General discussion
Topic: Multitouch foil configuration with Pi 3
Replies: 1
Views: 595

Re: Multitouch foil configuration with Pi 3

You may want to ask your question instead in the troubleshooting part of the forum, as this is for the official 7" touch LCD only, and your problem doesn't seem to be related to the Foundation's 7" Touch LCD (as that already comes with Touch, so why buying another touch layer?).
by elkberry
Fri May 26, 2017 12:10 pm
Forum: Official Foundation Display
Topic: Screen resolution
Replies: 10
Views: 24314

Re: Screen resolution

Or use xdpyinfo; this also should show X11 running in 800x480 resolution. Random colored pixels rather look like a hardware issue to me. At home and at work I have several RPi3's equipped with 7" Touch LCDs, and never seen any randomly colored pixels. Might be cabling, might be some crazy interferen...
by elkberry
Sat May 20, 2017 3:50 pm
Forum: Troubleshooting
Topic: Can't connect via wlan0 to RasPi 3 using hostapd
Replies: 3
Views: 1086

Re: Can't connect via wlan0 to RasPi 3 using hostapd

Make sure that wlan0 isn't autoconfigured anymore, so check your /etc/network/interfaces, and /etc/dhcpcd.conf. Don't mess with the wpa_supplicant, leave it as is. This way, you can let all services enabled, just tell them to don't touch wlan0. How do you "run" hostapd? That's a service... Enable an...
by elkberry
Thu May 18, 2017 4:02 pm
Forum: Troubleshooting
Topic: Raspberry Pi 2 does not turn on. Only the act and pwr lights
Replies: 2
Views: 362

Re: Raspberry Pi 2 does not turn on. Only the act and pwr li

If you can connect your RPi 2 to an HDMI display: do you even get to see the rainbow square, even without any mSD card inserted? It's strange that the green ACT LED is always on, it should only blink during card access, btw.
by elkberry
Tue May 16, 2017 5:34 pm
Forum: Raspbian
Topic: systemd/dhcpcd.service problem
Replies: 1
Views: 1593

Re: systemd/dhcpcd.service problem

As stopping and disabling services are completely independent operations, it's fine to first systemctl stop, then systemctl disable. The logs you've shown look fine to me, as dhcpcd has correctly spun down and terminated. systemd doesn't seem to me to be too intuitive when it comes to reporting, to ...
by elkberry
Tue May 16, 2017 4:21 pm
Forum: Advanced users
Topic: Cloning an SD Image for use on the same LAN
Replies: 6
Views: 945

Re: Cloning an SD Image for use on the same LAN

Two, or three, more things to consider when cloning RPi installations, from my own experience: hostname: make sure the hostname is unique, as per default, the DHCP clients send them when requesting addresses. The hostname often gets transferred into the local DNS. DHCPv4 and DHCPv6: if you run the d...
by elkberry
Fri May 12, 2017 6:37 pm
Forum: Raspbian
Topic: Raspbian 4-10, USB Boot, Imaging Recommendations?
Replies: 5
Views: 1812

Re: Raspbian 4-10, USB Boot, Imaging Recommendations?

Yes, the new images are really a god-send. They make cloning and switching between mSDs and USB sticks finally easy. This is how the fstab looks like: PARTUUID=xxxxxxxx-01 /boot vfat defaults 0 2 PARTUUID=xxxxxxxx-02 / ext4 defaults,noatime 0 1 To get the partition UUIDs, for instance, for the root ...

Go to advanced search