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by jansarik
Thu Aug 06, 2020 11:12 am
Forum: Troubleshooting
Topic: Custom MIPI DSI panel - dsi works but the display is always black
Replies: 16
Views: 559

Re: Custom MIPI DSI panel - dsi works but the display is always black

... that my driver works fine because the bridge has a status bit which indicates that the PLL is locked and further more it is possible to generate a test-pattern with the bridge (independent from the DSI input data stream) which shows up properly on the LVDS-Panel. But when I write to the framebuffer ...
by achrn
Thu Aug 06, 2020 8:47 am
Forum: General discussion
Topic: How to drive Brushless DC motor with built in driver and no documentation?
Replies: 6
Views: 233

Re: How to drive Brushless DC motor with built in driver and no documentation?

... to change the 3.3v pwm into 5v pwm, since it may care more about the voltage after low-pass, rather then the duty cycle That would be my next test. I'd try 5V, 25 kHz, something that can source and sink 5mA, since that's the PWM for a standard IT equipment fan (e.g. 4-wire PC case fan) and ...
by HermannSW
Thu Aug 06, 2020 7:08 am
Forum: Camera board
Topic: HQ Camera external sync signals support added
Replies: 13
Views: 465

Re: HQ Camera external sync signals support added

Will this also work for still images? I think it will. I test the new features one by one in order to use strobe later to correlate frames between two cameras until I know what is going on. Last night I did capture (5s) videos with 33fps framerate with ...
by W. H. Heydt
Thu Aug 06, 2020 3:18 am
Forum: General discussion
Topic: Video Chat on the Raspberry 4
Replies: 35
Views: 7973

Re: Video Chat on the Raspberry 4

... issues. On the second page, spl23 (a Pi Engineer) said: Already happening. I've been working with the Foundation over the last couple of months to test various webcams and headsets for the three conferencing solutions you mention above. Meet and Zoom work out of the box with our current Chromium ...
by utahjazz09
Thu Aug 06, 2020 1:34 am
Forum: Networking and servers
Topic: Mounting a network drive on pi 4 for a Plex Media Server
Replies: 5
Views: 177

Re: Mounting a network drive on pi 4 for a Plex Media Server

... likely enabled already. Part of the Zatabit's design was to accept shares, most notably with the Control4 system. Making these assumptions, can I test a NFS share easily to see if it works? How would I go about doing this? Thank you so much for the help.
by butchkemper
Wed Aug 05, 2020 10:11 pm
Forum: Troubleshooting
Topic: Pi 3Bv1.2 Fails to Boot After Apt Update and Upgrade
Replies: 18
Views: 593

Re: Pi 3Bv1.2 Fails to Boot After Apt Update and Upgrade

Hi Butch, Can you test with the latest nightly(ish) vanilla Raspberry Pi OS image? You can download it from here: https://downloads.raspberrypi.org/nightlies/2020-08-03-raspios-buster-nightly-armhf.zip If that doesn't boot, try overwriting ...
by Etienne
Wed Aug 05, 2020 9:57 pm
Forum: Automation, sensing and robotics
Topic: Mains current measurement using current transformer
Replies: 0
Views: 52

Mains current measurement using current transformer

... converter board with PCF8591 circuit. I hope the below may be helpful for some raspberry pi users... Here you can find :: - the circuit diagram CT_test_schema.jpg - the physical connectivity (not yet integrated) CT_test_photo.jpg - the result pi@raspberrypi:~ $ python3 current_estim.py start main ...
by xevilstar1
Wed Aug 05, 2020 8:17 pm
Forum: General discussion
Topic: thermal camera probably not a flir
Replies: 0
Views: 63

thermal camera probably not a flir

... my tablet https://it.banggood.com/HT-102-HT-101-Mobile-Phone-Thermal-Infrared-Imager-Support-Video-and-Pictures-Recording-20--~300--Temperature-Test--or--Face-Detection-Imaging-Camera-For-Android-p-1341560.html?gmcCountry=IT¤cy=EUR&createTmp=1&utm_source=googleshopping&utm_medium=cpc_bgcs&utm_content=xibei&utm_campaign=xibei-ssc-itg-all-newcustom-ncv65-0326&gclid=CjwKCAjwsan5BRAOEiwALzomXwYSINzOiejfKU722Vep0HEUdDIY8jTf9i5nZdwqFckN38SBEfqscRoCJAMQAvD_BwE&ID=6268958&cur_warehouse=CN ...
by xevilstar1
Wed Aug 05, 2020 8:01 pm
Forum: General discussion
Topic: STICKY: Raspberry Pi OS (64 bit) beta test version feedback
Replies: 228
Views: 39497

Re: STICKY: Raspberry Pi OS (64 bit) beta test version feedback

Apart from the fact I can't use tilix I must say I am a happy camper on my pi 4 8G using the 64 version of the system. I thank the team/person that made it.
by idcidc
Wed Aug 05, 2020 7:41 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: [UPDATED, SOLVED] Why "cheap" Chinese HDMI-to-CSI2 adapters (e.g.18810-1 C779) doesn't provide I2S sound
Replies: 19
Views: 725

Re: [UPDATED, SOLVED] Why "cheap" Chinese HDMI-to-CSI2 adapters (e.g.18810-1 C779) doesn't provide I2S sound

... yuvplayer please note that it doesn't support BGR24, so frames can be viewed in RGB24, 720p, with incorrect colors (red swaps blue). That's OK for test purposes. But the problem still persists: yavta doesn't render to MMAL when running with "cheap" C779 adapter. While v4l2-ctl captures frames absolutely ...
by 6by9
Wed Aug 05, 2020 4:14 pm
Forum: Camera board
Topic: Raspberry HQ camera hasn't been implemented well?
Replies: 18
Views: 803

Re: Raspberry HQ camera hasn't been implemented well?

... is the problem.\ I am reading through the code and IMX477 may need to be added to lines 223. to add the sensor modes. I have added it and will test if better. I've already corrected HermannSW and asked him to stop spreading FUD . I'll ask you to do the same. Picamera doesn't need updating for ...
by dabateman
Wed Aug 05, 2020 3:55 pm
Forum: Camera board
Topic: Raspberry HQ camera hasn't been implemented well?
Replies: 18
Views: 803

Re: Raspberry HQ camera hasn't been implemented well?

... is the problem.\ I am reading through the code and IMX477 may need to be added to lines 223. to add the sensor modes. I have added it and will test if better. But if you read through to line 2950 it indicates in the code that the preview shutter speed limit can't be slower than 33, 333usec ...
by i33SoDA
Wed Aug 05, 2020 3:37 pm
Forum: Other projects
Topic: Sending an ASCII command from Raspberry Zero W USB to RS232 (DB9) connector.
Replies: 7
Views: 348

Re: Sending an ASCII command from Raspberry Zero W USB to RS232 (DB9) connector.

... I made, for some reason it was broken. The output was always zero. I suspected the traces weren't good even though I check with the continuity test. https://i.imgur.com/7e52XVn.png 3. I made a new board, which looks prettier and it works. https://i.imgur.com/MMezPK2.jpg 4. I enabled the GPIO8 ...
by Khurram
Wed Aug 05, 2020 2:22 pm
Forum: Ubuntu
Topic: New Ubuntu Mate arm64 RaspberryPi 4 image
Replies: 70
Views: 3484

Re: New Ubuntu Mate arm64 RaspberryPi 4 image

Can you try to boot from sdcard and then attach your ssd and test it. Check if ssd drive is connected with uas enabled with lsusb -t ( Port 1: Dev 2, If 0, Class=Mass Storage, Driver=uas , 5000M ) Then try to read from it (it doesn't need to be mounted) ...
by jojopi
Wed Aug 05, 2020 1:43 pm
Forum: General discussion
Topic: "Reboot required" notification needed
Replies: 51
Views: 1451

Re: "Reboot required" notification needed

That's particularly the case for a kernel upgrade where hundreds of 'adding diversion' and 'removing diversion' messages - 472 in total in my last test - pretty much bury other, more useful or important messages - only 39 in total, though I understand why they are there. Another Pi specific facet, ...
by hippy
Wed Aug 05, 2020 12:24 pm
Forum: General discussion
Topic: "Reboot required" notification needed
Replies: 51
Views: 1451

Re: "Reboot required" notification needed

... saying such messages are given when updating the kernel can produce evidence of that I will happily stand corrected. But so far, after a number of tests, I see no evidence of that. I suspect most people are seeing "re-boot needed" messages as a result of dbus or ui-mods updates which will often ...
by loboris
Wed Aug 05, 2020 11:55 am
Forum: Ubuntu
Topic: New Ubuntu Mate arm64 RaspberryPi 4 image
Replies: 70
Views: 3484

Re: New Ubuntu Mate arm64 RaspberryPi 4 image

... as shown in the 2nd screenshot. I will try it with the KingDian storage quirks next. Can you try to boot from sdcard and then attach your ssd and test it. Check if ssd drive is connected with uas enabled with lsusb -t ( Port 1: Dev 2, If 0, Class=Mass Storage, Driver=uas , 5000M ) Then try to ...
by gianc
Wed Aug 05, 2020 9:17 am
Forum: Troubleshooting
Topic: linuxfb platform and bad color
Replies: 2
Views: 85

SOLVED Re: linuxfb platform and bad color

By setting the QT_DEBUG_PLUGINS variable and launching the program it shows the list of available plugins, styles included. The program uses, by default, the style bb10dark. Using the parameter -style bb10bright (or cleanlooks, cde, plastique) the application has the correct colors. Example : ./my_t...
by PhilE
Wed Aug 05, 2020 8:13 am
Forum: Troubleshooting
Topic: Pi 3Bv1.2 Fails to Boot After Apt Update and Upgrade
Replies: 18
Views: 593

Re: Pi 3Bv1.2 Fails to Boot After Apt Update and Upgrade

Hi Butch, Can you test with the latest nightly(ish) vanilla Raspberry Pi OS image? You can download it from here: https://downloads.raspberrypi.org/nightlies/2020-08-03-raspios-buster-nightly-armhf.zip If that doesn't boot, try overwriting ...
by Jack Hogan
Wed Aug 05, 2020 7:45 am
Forum: Camera board
Topic: Using HQ camera without an attached HDMI display gives no preview over VNC
Replies: 5
Views: 363

Re: Using HQ camera without an attached HDMI display gives no preview over VNC

... it over VNC to control it. When i type in [...] it won't show a preview of what the camera sees but it is taking a picture as i am finding the test images being taken by the camera. When I am connected via HDMI, it does give me a preview box of what the camera sees. So basically, how can I ...
by 6by9
Wed Aug 05, 2020 7:30 am
Forum: Graphics, sound and multimedia
Topic: TC358743 HDMI to CSI-2 install instructions
Replies: 3
Views: 114

Re: TC358743 HDMI to CSI-2 install instructions

Older version of these instructions at viewtopic.php?p=1339178#p1339178.
I'm dropping reference to yavta for now - it's a hacked together test app, not production quality code.
by DougieLawson
Wed Aug 05, 2020 5:54 am
Forum: Troubleshooting
Topic: unable to ssh into raspberry pi anymore
Replies: 3
Views: 104

Re: unable to ssh into raspberry pi anymore

Pull the power from your RPi and reboot it. (Doing it once in a blue moon when it's, most likely, idle isn't a big risk.)
Pull the power from your home router and reboot it.

Then re-test.
by DarkElvenAngel
Wed Aug 05, 2020 2:33 am
Forum: Troubleshooting
Topic: Waveshare 240x320 IPS display
Replies: 9
Views: 211

Re: Waveshare 240x320 IPS display

... needs fixing but I was hoping this was install and it works with minimal effort. Oh well. I think the thing to do is start with a fresh image and test the display with the demo code and be sure the display works. Then I can go forward. It's good to know that things have changed with the latest ...
by whiteshepherd
Wed Aug 05, 2020 2:33 am
Forum: Troubleshooting
Topic: Raspberry pi x64 root is now ro read only!
Replies: 7
Views: 172

Re: Raspberry pi x64 root is now ro read only!

... new drive copying root-drive1 to root-drive2? Any idea how that may cause read only on booting the new drive? I also copied drive2 to a new SSD to test for a bad drive. But the behaves exactly the same. Thanks for any input. I have a ton of work in this installation if I can hopefully save it. ...
by bettsr67
Wed Aug 05, 2020 2:05 am
Forum: Beginners
Topic: Trying to get SSD boot working on pi4
Replies: 30
Views: 1331

Re: Trying to get SSD boot working on pi4

Success! I tried the 64-bit OS and it is working. - Installed and updated Raspberry Pi OS (64 bit) beta test version onto SD card and updated/full-upgraded - Used SD card copier to copy SD card to SSD - Removed SD card and rebooted. First attempt took over 15 minutes to boot. ...

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