Raspberry Pi Ham Clock Full Screen

I was looking for a video on how to get the Ham Clock display to truly be full-screen. After trying for hours to figure it out, I finally got it. Now, you can learn how to do it in about ten minutes. Leave your questions or comments below.
Here is the website for the Ham Clock software: www.clearskyin...
The PuTTY software can be downloaded here: www.putty.org/
When you SSH into your Pi, you will copy and paste this code into your terminal: xrandr --output HDMI-1 --scale-from 800x480 --display :0

[@12polizei24wegvonhier]

I installed HamClock before and was disappointed with exactly this resolution issue. This video fixed it for me and now I'll put my recycled laptop display in a nice frame for my wall. This is also a great gift to pass on. Thx K2PMD and Happy New Year!

[@noboromirno671]

This is PERFECT. I bought a cheap AliExpress screen to have an always on HamClock and could not get the resolution right and this was the fix. Thank you for sharing this

[@dave5137]

This works perfect... you can adjust it to any custom size... just play with the resolution numbers till it fits the screen ya want. I use ubuntu with a xfce4 desktop and put the line of code in the startup apps as a command and everytime it boots it runs that code to set the resolution. I'm using a pi zero2 and an old laptop screen.... it"s only for running hamclock so I don't care about other app windows looking or fitting the screen. Thanks Paul K2PMD I really struggled with this for awhile. Dave K0DLP

[@K2PMD]

Awesome Dave. I use a dedicated Pi and Monitor just for Ham Clock as well. It really is a great tool to have up when operating at your station. I am glad the video was helpful. I will be putting in that code line as well so that I don't have to repeat the SSH steps every time I turn on my Pi.

[@Gnap1427]

This worked for me. Thank you. I did have to alter the script for the resolution on to clipboard, and then past it to the cli through ssh. great video. Years later and still getting likes. I will be sharing your video with my club. I am planning on donating a HamClock that I put together on a RPi Zero. It works great for this program. The only thing that runs slow, is the browser. I had to remove the mozilla and chrome and add midori. No big deal though. It's a HamClock.

[@K2PMD]

Very cool. Glad this work out for you.

[@mainetomass99]

Has anyone solved the "warning: output HDMI-1 not found; ignoring" error? Everything worked fine on the Pi Zero 2W. But, now that I've upgraded to the Pi4B, I'm getting this error. Strange. I've tried changing the HDMI # on the entry and tried the other HDMI port on the Pi with no success. Thanks in advance.

[@valmiroliveira5804]

Hi Paul a little help, I am using Raspberry PI for hamclock, I unzipped it but then open another window showing me ArduinoLib and WS Server? Any help I appreciate. Thanks

[@K2PMD]

Hello, the instructions for downloading direct to your Raspberry Pi are under the Desktop Tab at www.clearskyinstitute.com/ham/HamClock/. Here is the code to copy and paste into your terminal: cd curl -O www.clearskyinstitute.com/ham/HamClock/install-hc-rpi chmod u+x install-hc-rpi ./install-hc-rpi

[@billygamer3941]

MNI TNX

[@tekspeditionplanet9109]

Thanks for the walk-through. Do you have to modify the line remotely via SSH, or can you just open up the line editor in the Raspberry Pi and make the change?

[@K2PMD]

Hello, please see the response from Richard Wright below. I haven't tried it yet, but I will give it a try this weekend. Let us know if it works for you. I only know how to do it via SSH.

[@johnkemas7344]

Well done Presentation Paul! W#BUW

[@Richard-je4lt]

Yes this works BUT when you reboot you have to go through it all again , it reverts back to small screen on reboot , tried a reinstall and set size to 12300x9600 but i still get small screen ?..Need some way to make permanent ..

[@K2PMD]

Yes, that is the case. I leave my Pi on and turn off my screen after I leave the shack. Hopefully, someone with better coding skills than me can figure out how to put the code in the actual program.

[@nootropic1]

add the "xrandr --output HDMI-1 --scale-from 1600x960 --display :0" command to /etc/rc.local somewhere before the "exit 0"

[@RichardWright142]

In FAQ 12 on the HamClock webpage it shows how to save the resolution. Use a text editor (I used nano) and run this: nano ~/.xsessionrc Then enter the resolution that works for you. In my case 800x480 filled the screen (no black bars around it) so my line in the file was this: xrandr --output HDMI-1 --scale-from 800x480 --display :0 Save the file and when I rebooted it filled the screen. I also have my raspberry pi automatically launch HamClock when it starts up by running these commands (found on the desktop tab, item 10.): cd ~/ESPHamClock mkdir -p ~/.config/autostart cp hamclock.desktop ~/.config/autostart

[@K2PMD]

Thanks, Richard. I will definitely give this a try. It certainly answers the number 1 question asked about this video.

[@timlincoln2246]

Hi Paul, W2TIM here. I have a Raspberry Pi 4b, hamclock is loaded and running fine, but I also have the same issue. I have a 10.1" touchscreen as a HDMI monitor, resolution is 1280x800. I tried running the xrandr command but get an error: "warning: output HDMI-1 not found; ignoring". the Raspberry install is a new install, nothign else is loaded or running, it is pretty standard. Any help in getting this resolved woudl be greatly appreciated.

[@K2PMD]

Hey Tim, what resolution are you using in the xrandr command? If the one you are using is not working try 800x480. Also, please forgive me if this is something you already did, but have you tried the other HDMI port on the Pi4?

[@12polizei24wegvonhier]

Hi K2PMD, do you know how I can force this command: xrandr --output HDMI-1 --scale-from 800x480 --display :0 during reboot? Now I need to SSH every time when power comes off, which is not ideal. Tried adding the command in the config.txt boot file but it didn't work and probably did it not correctly. Thx K2PMD for any additional insights.

[@K2PMD]

Hi Arthur, check out Richard's response above. It seems like he figured it out.

[@pvdk]

Thanks for this video. I run the PI4B on a 4K OLED screen. I have the resolution on HD (1920x1080) but full screen I needed to go for a strange resolution of 1690x1010 (so no longer 16:9) but it seems to work. Is there by any change a place (I read the manual) where to set other windows on the screen (like cluster spotting etc) Thanks, Phil ON4VP

[@K2PMD]

Hey Phil, I am not really sure since I haven't ever tried it. I suspect you have to choose the existing "windows" within the hamclock and choose what you want to display (much like I chose the POTA window.)

[@alb.7180]

Got this working on my pi zero 2w ...thanks for the video! I am using 1600x960 in the command for my 1920x1080 monitor, & I have to perform the same steps every time I boot up though. Any way to make this permanent on start-up?

[@K2PMD]

Hey Al, I really don't know. I leave mine running all the time.

[@alb.7180]

I'll have to do that, and just re-do it after a power outage...thanks again!

[@K2PMD]

@@alb.7180 Check out Richard's response above. It seems like he figured it out.

[@waynerobertson8407]

Downloaded the software as shown. This clip does not work on Rasperry 5 as the software is diferant

[@mikestokes235]

Thank you for the video, but unfortunately I get an error.... warning: output HDMI-1 not found; ignoring What am I doing wrong?

[@dennimulyawan6544]

same here, also by replacing to HDMI-0, HDMI-1 with no luck