开云体育

Update.? ?I think I remember something being said about not being able to use the server that starts with Steve's image and wifi at the same time, duh obviously.? One part finished.

The club has no internet access available anyway so not a big issue at this time. Still leaves the monitor issue.

Thanks again, Don

On Fri, Aug 30, 2019 at 10:26 PM Don Cummings <dacum47@...> wrote:

This is my first post to this forum if I can remember rightly.??

I have a raspberry pi 4b 4gb model, and put Steve's buster image on it and it booted from the sdcard with the image on it and it looked promising.??

I want to use this on the clubs n-scale layout using dual monitors for panels of upper and lower decks.? Both monitors are new using 1920x1080 resolution.

The first time it came up beautifully. I imported our engine roster and the panels.? Reworked the panels to use the entire screen on both monitors. Saved the panels and took a break.

I came back and the monitors had gone to sleep.? Moved the mouse and only primary monitor woke up. The other said no signal.? I could not get to the internet because the wifi was not on and I couldn't find where to start it. I looked for both the wifi and and power settings for the monitors to not go to sleep but could find neither. Set both monitor settings (on the monitor) to not timeout but that didn't help.

I rebooted the pi and then things started up funny. I didn't get a splash screen and nothing happened.? Repowered the pi again and it came up, both monitors but no wifi again. I let them go to sleep again and monitor2 again said no signal.

I'm not the sharpest tool in the box when it comes to linux but I can remember some of the basic commands. I replaced the sdcard with the one that came with the pi and it came up and I was going to install JMRI from scratch but I couldn't remember the process (need to refresh my memory, my head is 72 years old and either rusty or cloudy or something along that line).

Sorry for the book but I could use some suggestions. Let me know if this is enough info to illicit a response, if not let me know what you need and i'll try to get it for you.

Thanks,? Don

On Thu, Aug 15, 2019 at 4:14 PM Robert Schworm <rkschworm@...> wrote:

I have to agree with Dave on this one.? Stick with quality and do not go cheap.? It will always come back to bite.? And remember - - - - backup backup backup!!

Bob S

On Thu, Aug 15, 2019 at 11:20 AM davethomas1359 via Groups.Io <davethomas1359=[email protected]> wrote:

I have found with all versions of Pi that it really does pay to use a known name brand class 10 Micro SD card.

On Thursday, August 15, 2019, 09:17:47 AM GMT-4, Robert Schworm <rkschworm@...> wrote:

I prefer win32diskimager, especially for a 32 bit pc as the other does not appear to work.? Never had a problem.? Good going!

Bob S

On Wed, Aug 14, 2019 at 8:07 PM Seth Neumann <sneumann@...> wrote:

thanks, somehow I missed this thread when it first went up.?? I'll try a Pi4 as soon as I can get my hands on one!

On 7/6/2019 3:27 AM, jimalbanowski wrote:

Group:

Steve and I went offline a bit with this...

Recap... Pi 4B came home Monday and I got it running with regular tools and new Raspbian Buster that's required.

Steve got a version of RPi-JMRI up Wednesday afternoon and I Etched his image to a working SD from a Pi 3B+. No good, never got past a short boot to a command line but that seems to work at least..?

We spent yesterday and this morning working through the issue with Steve kindly working to give me check points and good "try thises" all logical but nothing worked.

Okay I changed two things, the Pi, well, that worked and the software and that didn't so software yes?

No... there was a clue in one test where I saw a message where a log file couldn't be opened, that seemed odd.

So how about this, the SD is broken, happened on the initial load of Steve's image... The boot partition is readable but it or the root partition is now *not* writable..? The Pi can read enough to get some of Raspbian up and do some things but now to go beyond that point and bring up anything else... Like the GUI and then Java/JMRI.

Replaced the card and Steve's image is up on the new Pi 4B all you RPi-JMRI fans!

Thanks Steve and I hope a cautionary tale for all those of you trying to trouble shoot your JMRI system or any computer system for that matter. It may not be what you think! Last attempt to burn card with Etcher produced a tiny red ! and a checksum error hard to notice on the Etcher page big blue completed tiny error...

While I couldn't score a 4 GB model, the speed of the new 4 is quite noticeable.

Jim Albanowski

-- 
Seth Neumann
Mountain View, CA