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by kershner
Wed Aug 10, 2016 10:39 pm
Forum: Beginners
Topic: Command to List Connected Displays?
Replies: 4
Views: 5665

Re: Command to List Connected Displays?

Very late to the party on this one but I just tried
DISPLAY=:0.0 kweb

and it works! My precious uptime can now be preserved! Thanks, friend!
by kershner
Wed Jul 27, 2016 10:35 pm
Forum: Beginners
Topic: Command to List Connected Displays?
Replies: 4
Views: 5665

Re: Command to List Connected Displays?

Thanks for the tips, however using the -display :0.0 / -display :1.0 commands only opened up kweb in the remote display.
by kershner
Tue Jul 26, 2016 10:40 pm
Forum: Beginners
Topic: Command to List Connected Displays?
Replies: 4
Views: 5665

Command to List Connected Displays?

Hi all, I have a Pi connected to the official 7'' touchscreen display. I SSH into my Pi to configure/maintain it. Every now and again the program I have running on the Pi craps out and I need to fix it. What I've been forced to do lately is just sudo reboot , but this is total overkill because the o...
by kershner
Fri Jun 24, 2016 2:49 pm
Forum: Troubleshooting
Topic: How to edit autostart file? Did it move?
Replies: 2
Views: 591

Re: How to edit autostart file? Did it move?

Awesome, thank you for the tip. I'll try it out soon as I get home.
by kershner
Fri Jun 24, 2016 2:30 pm
Forum: Troubleshooting
Topic: How to edit autostart file? Did it move?
Replies: 2
Views: 591

How to edit autostart file? Did it move?

Hi everyone, I've been using a Pi for a few years now to run a 24/7 GIF display: https://github.com/kershner/RPi_Display Last night I decided to nuke the device and reinstall NOOBS to hopefully get rid of some issues I was having. I downloaded the latest version of NOOBS from raspberrypi.org and sta...
by kershner
Fri Oct 02, 2015 1:29 pm
Forum: General discussion
Topic: Recommended Power Supply?
Replies: 1
Views: 737

Recommended Power Supply?

Hey everyone! I recently got a Pi 2 and the official 7'' Display. Everything is set up and working great, but I have the "tiny colored square" of death https://www.raspberrypi.org/forums/viewtopic.php?f=29&t=82373 indicating that my power supply isn't quite providing enough power. I qu...
by kershner
Mon Sep 21, 2015 5:06 pm
Forum: Official Foundation Display
Topic: Case/Stand for the Official Touchscreen?
Replies: 6
Views: 3728

Case/Stand for the Official Touchscreen?

Hey everyone, Just got the new display - it's very nice! I'm now looking for your ideas on how to frame this thing. I absolutely love the simplicity of the Pimoroni frames - https://shop.pimoroni.com/products/raspberry-pi-7-touchscreen-display-with-frame But I can't seem to find a way to buy them se...
by kershner
Fri Aug 14, 2015 10:40 pm
Forum: Troubleshooting
Topic: Can this screen do 60Hz?
Replies: 3
Views: 1003

Re: Can this screen do 60Hz?

I've probably got my terminology mixed up, but it shouldn't really change the issue too much. Good to know these things.
by kershner
Fri Aug 14, 2015 8:07 pm
Forum: Troubleshooting
Topic: Can this screen do 60Hz?
Replies: 3
Views: 1003

Can this screen do 60Hz?

Hi everyone, My apologies if this is in the wrong section - I was unsure if it should go here or in hardware. I recently purchased this cheap screen (http://www.neosecsolutions.com//products.php?28&cPath=17) to replace another cheap screen I was using. I really like it because it plugs right int...
by kershner
Thu Jul 03, 2014 2:42 pm
Forum: General discussion
Topic: Pi, physical screen and SSH
Replies: 10
Views: 3054

Re: Pi, physical screen and SSH

The screen goes black, or it stays black? Do you get any errors in the SSH session, or does midori appear to have started (prompt does not return until you Ctrl+C)? The screen stays black, for all I can tell. The starting of it is random, so it's hard to properly test. And again I haven't looked in...
by kershner
Wed Jul 02, 2014 1:30 am
Forum: General discussion
Topic: Pi, physical screen and SSH
Replies: 10
Views: 3054

Re: Pi, physical screen and SSH

Things are starting to make a little more sense. Midori starts with X because I have @midori -e Fullscreen in my /etc/xdg/lxsession/LXDE/autostart file. I'm having trouble opening the browser on the different display though. When I kill midori then try DISPLAY=0: midori or midori --display=:0 I just...
by kershner
Tue Jul 01, 2014 11:28 pm
Forum: General discussion
Topic: Pi, physical screen and SSH
Replies: 10
Views: 3054

Re: Pi, physical screen and SSH

Excellent, a step in the right direction - thanks! So reading this https://wiki.archlinux.org/index.php/Environment_variables and investigating the printenv command, I learn that my $DISPLAY environment variable is currently 10.0, and I guess 0.0 is the local session on my small LCD. I had a look in...
by kershner
Tue Jul 01, 2014 12:59 pm
Forum: General discussion
Topic: Pi, physical screen and SSH
Replies: 10
Views: 3054

Re: Pi, physical screen and SSH

Yep, disabled it in about 4 different places. The one that seems to have actually taken effect (and I don't understand this at all) was editing the /etc/X11/xinit/xserverrc file to say exec /usr/bin/X -s 0 dpms -nolisten tcp "$@ In any case, would there really be a distro set up to screen blank...
by kershner
Mon Jun 30, 2014 11:29 pm
Forum: General discussion
Topic: Pi, physical screen and SSH
Replies: 10
Views: 3054

Pi, physical screen and SSH

Hi everyone, I'm back with another crop of questions. I'm working on a GIF display (random GIFs in a slideshow on a 3.5'' LCD), and I've got a working solution that I think is quite ugly and I'm thinking it's because I'm generally confused about something along the way. Here's my setup for clarity: ...
by kershner
Fri Jun 27, 2014 1:01 pm
Forum: General discussion
Topic: Screen Blanking (how to disable)
Replies: 8
Views: 2304

Re: Screen Blanking (how to disable)

Hi all - I wanted to update this thread because I believe I've found a solution. After trying everything listed here - I must've edited at least 4 or 5 different config/boot files with no luck - I stumbled across a line that seems to work. In the file /etc/X11/xinit/xserverrc I changed this line exe...
by kershner
Thu Jun 26, 2014 2:56 pm
Forum: General discussion
Topic: Screen Blanking (how to disable)
Replies: 8
Views: 2304

Re: Screen Blanking (how to disable)

Thanks for the reply, however, I've already performed all the suggestions in that thread. One step from the thread that I tried that I didn't mention in the OP was Foggy's solution of editing /etc/kbd/config. That also has not worked.
by kershner
Thu Jun 26, 2014 1:38 pm
Forum: General discussion
Topic: Screen Blanking (how to disable)
Replies: 8
Views: 2304

Screen Blanking (how to disable)

Hi all, My Pi-powered GIF slideshow display is coming along nicely. Everything is pretty much figured out except I have a small problem with the screen blanking after 30 mins. I can SSH in and $ startx to get it going again, but it seems like I should be able to just disable the screen blanking. Now...
by kershner
Sun Jun 22, 2014 4:11 pm
Forum: General discussion
Topic: Anyone have experience with this 3.5'' LCD?
Replies: 7
Views: 1522

Re: Anyone have experience with this 3.5'' LCD?

Posting here to mark this topic as SOLVED. Klricks pointed me in the right direction - the /boot/config.txt file needed to be edited, under the NOOBs auto-generated settings. #hdmi_force_hotplug = 1 # Commented out line to allow composite detection Now the display works just fine, and my project is ...
by kershner
Sun Jun 22, 2014 1:53 pm
Forum: General discussion
Topic: Anyone have experience with this 3.5'' LCD?
Replies: 7
Views: 1522

Re: Anyone have experience with this 3.5'' LCD?

Centre positive, I'm guessing this was my mistake, since I didn't know what polarity to apply before connecting (so I tried both). I'm guessing that fried the screen? I'll have to grab a new one and try again. For future reference, how can I tell what polarity a device needs? Thanks for the input, b...
by kershner
Sat Jun 21, 2014 10:45 pm
Forum: General discussion
Topic: Anyone have experience with this 3.5'' LCD?
Replies: 7
Views: 1522

Re: Anyone have experience with this 3.5'' LCD?

joan wrote:What voltage are you feeding to the display?
The power supply is set to 12V. I'm not sure what 'polarity' to use on the barrel jack tip, though.
by kershner
Sat Jun 21, 2014 8:52 pm
Forum: General discussion
Topic: Anyone have experience with this 3.5'' LCD?
Replies: 7
Views: 1522

Anyone have experience with this 3.5'' LCD?

http://www.amazon.com/gp/product/B0045IIZKU/ref=oh_details_o02_s00_i00?ie=UTF8&psc=1 I'm trying to hook this one up to my Pi but am not having any luck. I think I've narrowed it down to either my power supply is wrong or the screen arrived DOA. Can anyone with experience offer some advice on the...
by kershner
Thu Jun 12, 2014 1:55 am
Forum: General discussion
Topic: How to Power this 3.5 inch LCD?
Replies: 3
Views: 1264

How to Power this 3.5 inch LCD?

Hi all, I'm going to use this display for my current project: http://www.amazon.com/3-5-Inch-TFT-Monitor-Automobile/dp/B0045IIZKU/ref=cm_cd_al_qh_dp_i It requires a 12v DC power source. I'm worried about the connector coming from the little LCD (the red tip). I'm not super familiar with electronic s...
by kershner
Sat Jun 07, 2014 9:09 pm
Forum: General discussion
Topic: Help with first project (GIF slideshow display)
Replies: 1
Views: 1453

Help with first project (GIF slideshow display)

Hi all, This is my first post, so if anything isn't quite up to code let me know and I will gladly change it. I've been learning Python and am looking to use it with my first RPi. I've got a Python script that scrapes reddit for GIFs and downloads them into a folder. Everything is working just fine ...

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