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by FTrevorGowen
Sat Feb 29, 2020 1:06 am
Forum: Troubleshooting
Topic: Raspberry Pi 3B+ does not boot from USB, only from SD-card
Replies: 19
Views: 256

Re: Raspberry Pi 3B+ does not boot from USB, only from SD-card

IMHO the "simplest way" to setup a bootable USB stick for a P3B+ (and, IIRC. early P3A+'s) based upon a Raspbian O.S. installation is to first setup a working uSDHC card installation (adding any other software needed) and then use Raspbian's provided SD Card copying tool to clone that card to the U...
by FTrevorGowen
Fri Feb 28, 2020 5:47 pm
Forum: Troubleshooting
Topic: Raspberry Pi 3B+ does not boot from USB, only from SD-card
Replies: 19
Views: 256

Re: Raspberry Pi 3B+ does not boot from USB, only from SD-card

IMHO the "simplest way" to setup a bootable USB stick for a P3B+ (and, IIRC. early P3A+'s) based upon a Raspbian O.S. installation is to first setup a working uSDHC card installation (adding any other software needed) and then use Raspbian's provided SD Card copying tool to clone that card to the US...
by FTrevorGowen
Wed Feb 26, 2020 5:35 pm
Forum: General discussion
Topic: RPi 4 heat sink
Replies: 20
Views: 616

Re: RPi 4 heat sink

This is what I use, as heatsink and case: RPi4B-4G_Armorcase.jpg and usually get this temp (which somewhat offends some RPi4B users :mrgreen: ) RPi4B-buster_panel_layout.jpg Wearing my "physicist's hat" have to ask: but what's the ambient air temp.? :twisted: (I happen to use a similar "bulk heatsi...
by FTrevorGowen
Tue Feb 25, 2020 8:40 pm
Forum: Troubleshooting
Topic: No green light after taking sd card out
Replies: 7
Views: 176

Re: No green light after taking sd card out

Hi so I got a raspberry pi yesterday and I formatted my sd card and installed noobs and after a bit of troubleshooting I got it to install my case arrived today so I had to take the sd card out to put the raspberry pi in when I then tried to boot the raspberry pi I only got the red light and I can'...
by FTrevorGowen
Tue Feb 25, 2020 8:30 pm
Forum: Beginners
Topic: Please help me understand the clock pin of Serial RS232 communication
Replies: 27
Views: 442

Re: Please help me understand the clock pin of Serial RS232 communication

You may be able to use GtkTerm (or similar) to capture the raw data and save it to a file for post-processing rather than trying to interpret it "on the fly". Something like what I did for a "free-running" DMM "rs232"-based output: https://www.cpmspectrepi.uk/raspberry_pi/MoinMoinExport/Rs232DmmDt40...
by FTrevorGowen
Tue Feb 25, 2020 8:09 pm
Forum: Troubleshooting
Topic: Can't Load OS on Raspberry Pi 4
Replies: 5
Views: 116

Re: Can't Load OS on Raspberry Pi 4

W.r.t. writing to the, presumably, SDXC uSD card hopefully you were/are using a known SDXC compatible USB card reader or slot ... Trev. Hello! Correct, SDXC uSD card. I my reader is compatible. When plugging it into my PC, it is recognized as a suitable drive. I can write to/from it no problem. Is ...
by FTrevorGowen
Tue Feb 25, 2020 6:37 pm
Forum: Troubleshooting
Topic: Can't Load OS on Raspberry Pi 4
Replies: 5
Views: 116

Re: Can't Load OS on Raspberry Pi 4

W.r.t. writing to the, presumably, SDXC uSD card hopefully you were/are using a known SDXC compatible USB card reader or slot ...
Trev.
by FTrevorGowen
Tue Feb 25, 2020 6:11 pm
Forum: Troubleshooting
Topic: [SOLVED] Raspberry doesn't save my modifications
Replies: 4
Views: 113

Re: Raspberry doesn't save my modifications

When fs turns into RO mode, there is some messages np ? I should see it in fstab. There was in previous version (jessie for sure. I faced this problem). If you're true, what could have caused it ? I installed Raspbian earlier this night, installed apache/php that's all x) Is this version of Raspbia...
by FTrevorGowen
Mon Feb 24, 2020 4:13 pm
Forum: Beginners
Topic: Raspberry pi doesn´t work, ¿why? I´m frustrated
Replies: 10
Views: 427

Re: Raspberry pi doesn´t work, ¿why? I´m frustrated

... Yes, I checked that and the cable works. The TV connection is OK, i know that because when I installed NOOBS the tv showed me the process and after it the image where i could select the software, and it was after I selected the software when the RPI turns off and the tv image desppeared.. The s...
by FTrevorGowen
Sat Feb 22, 2020 5:07 pm
Forum: Troubleshooting
Topic: RPi4 dead?
Replies: 7
Views: 324

Re: RPi4 dead?

I bought a RPi 4 B 2GB, I flashed a DietPi in a 2Gb SD card. Yes, it worked. For about a week the RPi was OK but suddenly stopped booting. The symptoms: Without the card when plugin the power, the green LED blinks with a repeating four blink pattern (this is Ok I think)., with the card I get a red ...
by FTrevorGowen
Fri Feb 21, 2020 3:23 pm
Forum: General discussion
Topic: Raspberry Pi 3 Model B V1.2
Replies: 3
Views: 138

Re: Raspberry Pi 3 Model B V1.2

Hello, After doing a lot of research I recently picked up a Raspberry Pi 3 Model B V1.2 with the understanding it has onboard wifi. After installed a fresh, newly downloaded copy of Raspbian I am getting "no wireless interfaces found". ... What "waveband" does your WiFi (router) use - 2.4GHz or 5GH...
by FTrevorGowen
Tue Feb 18, 2020 10:47 pm
Forum: Beginners
Topic: Raspberry pi doesn´t work, ¿why? I´m frustrated
Replies: 10
Views: 427

Re: Raspberry pi doesn´t work, ¿why? I´m frustrated

Thank you so much! I looked for information about my problem in that web and I couldn´t find the error or a similar error. My raspberry is RPI4 model B 2GB, and i download the last zip that was here https://www.raspberrypi.org/downloads/noobs/ and I install on a sd card 32 GB. It seems that work co...
by FTrevorGowen
Mon Feb 17, 2020 9:09 am
Forum: Raspbian
Topic: the main monitor ends up black
Replies: 4
Views: 178

Re: Black Screen of Death

Previous response is all irrelevant. I should add that I've seen many similar references to this problem on the forum, so the problem is by no means unique to me. It's not a problem at my end. I just hope the developers can fix it - although, to be fair, it is merely an annoyance, not a show stoppe...
by FTrevorGowen
Thu Feb 13, 2020 6:57 pm
Forum: General discussion
Topic: Raspbian Buster from desktop back to headless?
Replies: 6
Views: 182

Re: Raspbian Buster from desktop back to headless?

Another approach might be to: a) Uninstall some of the recommended software (that will free up space). This is probably easier with using the Add/Remove software GUI from the Preferences menu. then b) change the boot option to be to the Command Line rather than the Desktop (gives you the option to u...
by FTrevorGowen
Thu Feb 13, 2020 1:58 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 Recovery
Replies: 11
Views: 237

Re: Raspberry Pi 4 Recovery

Just under the links for NOOBS and Raspian is a link for recovering a Raspberry Pi that will not boot. Either way, how do I go about creating a fresh bootable SD Card? Strictly speaking - a Pi that will not even perform the first stage of the boot process (which happens before any display detection...
by FTrevorGowen
Thu Feb 13, 2020 1:45 pm
Forum: Troubleshooting
Topic: Can't get anything on my screen (Beginner)
Replies: 3
Views: 91

Re: Can't get anything on my screen (Beginner)

I'm brand new to Raspberry Pi, and have a brand new Pi 4 that I'm trying to get running. I've started with an SD card I took out of the packaging today and followed instructions on this website (and double-checked with a few others, to be safe) to get NOOBS onto the SD. My Pi has power, as indicate...
by FTrevorGowen
Wed Feb 12, 2020 10:59 pm
Forum: General discussion
Topic: vnc desktop much smaller when no monitor attached to rpi4
Replies: 2
Views: 104

Re: vnc desktop much smaller when no monitor attached to rpi4

There's also the option, assuming you can remotely login via SSH (PuTTY) or equivalent method, RealVNC server's virtual mode, FWIW some examples here: https://www.cpmspectrepi.uk/raspberry_p ... uster.html
Trev.
by FTrevorGowen
Wed Feb 12, 2020 10:32 pm
Forum: Troubleshooting
Topic: Help Setting up the Correct Video Config to TV Output
Replies: 4
Views: 128

Re: Help Setting up the Correct Video Config to TV Output

I am hooking my Pi 4 to an old Toshiba TV via HDMI. Running through NOOBS, everything was fine in the display. Once the Pi rebooted, the TV always shows no video signal. I am able to VNC into Pi to have access. I have been reading multiple posts but I think I am over my head at the moment. I think ...
by FTrevorGowen
Wed Feb 12, 2020 5:25 pm
Forum: Troubleshooting
Topic: Help Setting up the Correct Video Config to TV Output
Replies: 4
Views: 128

Re: Help Setting up the Correct Video Config to TV Output

I am hooking my Pi 4 to an old Toshiba TV via HDMI. Running through NOOBS, everything was fine in the display. Once the Pi rebooted, the TV always shows no video signal. I am able to VNC into Pi to have access. I have been reading multiple posts but I think I am over my head at the moment. I think ...
by FTrevorGowen
Sat Feb 08, 2020 1:02 pm
Forum: Troubleshooting
Topic: RealVNC not access Pi4 booting headless
Replies: 4
Views: 181

Re: RealVNC not access Pi4 booting headless

What can I do to get the Pi4 working headless properly.? Are you trying to access the console desktop via VNC? If so, as I understand it you'll need to tweak config.txt on the 4B to "convince" it that a monitor is connected. If no monitor is detected at boot no frame buffer is created so there's no...
by FTrevorGowen
Sat Feb 08, 2020 12:48 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 B will not connect to 2.4Ghz wifi
Replies: 16
Views: 2682

Re: Raspberry Pi 4 B will not connect to 2.4Ghz wifi

Perhaps this is the source of my problems as well. Just got an RPI4 and getting horrendously slow throughput on Wifi, unusable for web browsing. Possibly because the 5Ghz band has less range, and it won’t connect to the 2.4 Ghz band. Would be very interested as to why this is the case. Are you (all...
by FTrevorGowen
Fri Feb 07, 2020 10:16 pm
Forum: Troubleshooting
Topic: pi4 wont boot if connected to HDMI cable
Replies: 8
Views: 282

Re: pi4 wont boot if connected to HDMI cable

"whatever the other end of the HDMI cable was plugged in to" did try with Samsung UHD led, LG lcd 1080p, old Samsung Plasma 1080p, old Sharp lcd 720p same result. with direct Raspbian image same result, with no HDMI it boots and i can connect with ssh. What happens w.r.t. the red PoWeR and green AC...
by FTrevorGowen
Fri Feb 07, 2020 3:05 pm
Forum: Troubleshooting
Topic: pi4 wont boot if connected to HDMI cable
Replies: 8
Views: 282

Re: pi4 wont boot if connected to HDMI cable

A somewhat strange and unexpected issue. We need more info. especially w.r.t. whatever the other end of the HDMI cable was plugged in to. Also please, if you can, try a direct Raspbian image install to the uSDHC card** and add the file to enable SSH****. (NOOBS adds an extra "layer" of display detec...
by FTrevorGowen
Fri Feb 07, 2020 12:50 pm
Forum: Troubleshooting
Topic: Compatibility Issue or just flaws
Replies: 8
Views: 213

Re: Compatibility Issue or just flaws

The Image is the whole Software package incl. the "OS" so we Distribute a Pi with an SD Card with the already flashed Fleetmanagement Software as included in the Download in my initial post. Would it work if i Boot the Image on a Pi3, update all files and then try to boot it on a Pi4 ? kind regards...
by FTrevorGowen
Fri Feb 07, 2020 10:04 am
Forum: Troubleshooting
Topic: Compatibility Issue or just flaws
Replies: 8
Views: 213

Re: Compatibility Issue or just flaws

Hello there, im pretty new to the whole RaspBi ecosystem but we are used to Distribute our Software via RaspBi 3+ to our Customers https://sequisoft.com/ ( download is down below ) Now i got the Case that we only have Pi4's here and when i try to boot from the SD Card with the Image it wont boot at...

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