All Questions
68
questions
0
votes
1
answer
25
views
How to blank a touch screen without loss of signal from HDMI?
I want to blank a touch screen monitor on inactivity without loosing signal on HDMI.
I've found xset dpms force off (and suspend and standby), but all these commands result in no signal being sent via ...
- 101
0
votes
0
answers
55
views
connecting raspberry pi 4 to external screen or control without changing any settings (broken touchscreen)
I'm using a Raspberry Pi 4 connected to the original touchscreen. A few days ago, the display stopped working. The system controlled by the pi seems to still be working, so the fault seems to lie in ...
- 1
0
votes
1
answer
429
views
Multiple screen control with RPi4
I have a question regarding Raspberry Pi 4. Can I control 6 inch, 3 oled screens with Rpi 4?
I want to render all the screens differently, is that possible? Thanks in advance for your answers.
OLED 6 ...
1
vote
1
answer
493
views
Pi 4, 2 monitors with same display - screen layout changes not being respected
I have 2 HDMI touchscreens that I'd like to have with identical vertical displays. By identical, I mean I'd like the screens to be mirrored and show exactly the same image.
The Screen Layout Editor is ...
- 11
1
vote
1
answer
100
views
Raspberry pi not connecting to monitor
I am using raspberry pi 4 B+ with dell monitor DEL-DELL_E228WFP. But it shows auto detect(digital input) and keeps going to black screen when I move the cursor. Also it goes to power save a lot and ...
- 11
2
votes
1
answer
1k
views
RPi Zero 2 W monitor image lost during boot [closed]
TLDR: RPi Zero 2W outputs image only for a few seconds then stops
My brand new Zero 2W is having issues with the monitor image.
During boot I can see the init messages going by and at some point ...
- 121
1
vote
0
answers
436
views
RPi 3 Model B+ HDMI not working due to new version of Raspberrypi OS
I've updated my RPi 3 B+ which has been working like a charm for years, but I ended up with a black screen, no HDMI connected message on my TV.
Steps I've follow:
Download Raspberry Pi Imager.
Plug ...
- 111
0
votes
0
answers
2k
views
How to make application window sizes fit within smaller screen dimensions on Raspbian
This is my first question so forgive my inconsistencies in Stack Exchange writing convention.
I am using a Raspberry Pi 4 Model B connected to a 5" (800*480px) HDMI touchscreen.
[Here is the ...
user140363
0
votes
0
answers
143
views
Headphone Jack deactive when RasPi starts without screen
I want to set up a Jukebox (Phoniebox) with my RasPi (3b+) with an audio output via the headphone Jack. When I boot the RasPi (3b+) with a connected HDMI screen, everything works fine, and I get an ...
- 1
-1
votes
1
answer
93
views
S.O.S Monitor Says No signal and HDMI inactive to Raspberry Pi4B
I connected mi PI4B to the monitor with HDMI-MicroHDMI adapter, and when I power de PI device, the monitor says "HDMI Inactive" and no signal. The screen was in black. The Red led of the PI ...
- 1
1
vote
1
answer
489
views
How to automatically switch between the official 7" DPI display and a HDMI TV on Raspberry Pi 3?
I use a RPi3 with the Recalbox OS for some retrogaming. And I want to use the official 7" DPI monitor when it's portable, and the HDMI when I connect it to the TV.
I tried plugging the HDMI cable ...
- 11
0
votes
1
answer
35
views
RPi's screen starts doing strange things when running a software
I would like to know if someone could help me with this, when I starts a software like Blender or Sonic Pi my screen begins to freeze and by continuing refreshing the screen I finish with a white ...
- 3
1
vote
1
answer
214
views
Headphone deactivates when RasPi is started without screen (HDMI)
To my Rasbian setup I have a set of speakers connected via the headphone jack and it works just fine when I start the RasPi (3b+) with a connected HDMI screen, also when accessing it via a web portal (...
0
votes
3
answers
11k
views
Raspberry Pi 4: cannot use 1920×1080 resolution on a Full HD monitor (Asus PA238)
I recently bought a Raspberry Pi 4 (4GB). I installed the latest version of Raspberry Pi OS (2020-08-20-raspios-buster-armhf-full.zip) on it and plugged it on my 1080p TV, and everything worked as ...
- 121
0
votes
1
answer
863
views
Second Acer monitor X183H native 1366 x 768 HDMI-to-VGA adapters "Input Not Supported" (*First AcerG195W works great)
#Raspberry Pi w/ latest Raspbian (Raspberry's OS) (which I have connected as a desktop computer)
https://www.raspberrypi.org/products/raspberry-pi-4-model-b/specifications/?resellerType=home
#...
1
vote
0
answers
823
views
HDMI-to-( TTL or LVDS ) decoder/driver on a custom PCB [closed]
I am working on a custom-made handheld PCB based around a PI Compute Module and one of the hardest steps I have found is how to include an HDMI-to-(50pin-TTL or LVDS) driver on my PCB to run my LCD ...
- 111
0
votes
1
answer
1k
views
RPI4 Model B won't boot Kali Linux, TV shows “No Signal” or Rainbow screen
I have RPI4 model B and I've installed Kali Linux Kali Linux RaspberryPi 2, 3 and 4 on my SDcard 64gb through Balena Etcher but when powered on, my LG tv shows "no signal", HDMI is well ...
- 3
0
votes
1
answer
354
views
Blue screen over VGA monitor connected to Pi
I recently bought new raspberry pi 4 2GB and micro hdmi to vga converter. Once i try to connect pi to monitor using converter, os boots perfectly, but over whole monitor screen is light blue color ...
- 1
0
votes
1
answer
444
views
How do you run Adafruit PiTFT - 320x240 without mirroring the HDMI output
I currently have a Adafruit PiTFT - 320x240 mirroring the raspberry pis HDMI output. I have developed a GUI which I would like to run on the raspberry pi, which is designed for 320x240. The problem is ...
- 129
-1
votes
1
answer
1k
views
RasPi4 shows two connected screens even though there is only one
So I'm currently building my Smartmirror with Magic Mirror and I have some problems with the screen configuration of my Raspberry Pi 4 running Raspbian Buster. I tried changing the screen orientation ...
- 21
1
vote
3
answers
429
views
My raspberry pi HDMI is not working. What are my other options?
I got this old Raspberry Pi B+. One day, suddenly the HDMI stopped working completely. I know it boots up because I can still ssh into it. The thing is, I have no AV cables for alternate input. I ...
- 11
0
votes
0
answers
244
views
Raspberry Pi goes blank after 10 mins or so, until the resolution is changed. and repeats
so I just got a really cheap and free desktop monitor from work, that's like 1280x1024 resolution.
Now when I first connected the pi to the monitor it failed to boot at all... which was weird, but ...
0
votes
0
answers
144
views
LCD screen not working with Raspberry Pi 3B+
I've got Raspberry Pi 3B+ and this screen and I tried to plug it up, but it's not working. OS configurations I tried:
just Raspbian
Waveshare drivers on same Raspbian
some random drivers on same ...
- 1
2
votes
4
answers
23k
views
How to change screen brightness on Raspberry pi 4?
Hi raspberry PI geeks!
I install Raspbian OS, and connected HDMI monitor to one of micro hdmi ports on raspberry pi 4.
Question - how to change brightness of a screen?
I try xrandr:
1) See 2 hdmi:
...
0
votes
0
answers
160
views
Resolution problem in 5 inch screen
I have one 5" screen, when I connect it to my Raspberry Pi see like this:
But when I connect it to my computer the screen works well:
I tried with change the parameter in video section in config....
- 33
0
votes
1
answer
267
views
Couldn't get a display on the screen when using the RPi
I had a long time I didn't get my hand on the RPi. I got the Emlid image burned on a 8gb micro sdcard using the dd command. I have the pi connected to a the screen using HDMI to VGI cable, but I get ...
- 43
1
vote
0
answers
169
views
3.5in TFT screen hat and Raspberry Pi 3+b
I'm trying to understand something about the MPI3508 screen I purchased (https://www.amazon.ca/dp/B07DQKQG6X).
I tried powering it via usb and connected a PC in its HDMI input and got it working (the ...
1
vote
1
answer
361
views
TV display resolution issue during runtime
when I tried to tvservice -e "CEA 16", the TV's screen always black-out.
Whether the option is not supported or is it a bug. I am currently, running RASPBIAN NON-NOOBS and running 4.8.16 kernel. Will ...
- 117
1
vote
0
answers
683
views
Issue on Display Resolution
I am unable to set the correct screen resolution when trying to connect TV/Monitor(via HDMI) with RaspberryPi3 at runtime, the following are the steps:
Disconnect TV if already connected
Boot ...
- 117
1
vote
3
answers
26k
views
How do I force the correct screen resolution in /boot/config.txt?
I've recently set up a Retropie which I have plugged into my TV. If I have the right input selected on the TV before powering on the Pi, then the image looks crisp and wonderful. However if I turn on ...
- 139
-1
votes
2
answers
201
views
Resolution Issue
When I connect my raspberry pi to a monitor through an HDMI cable, the resolution gets lower at the boot of the desktop UI, but when I click on start menu it turns to 1920×1080. Sometimes it randomly ...
- 1
1
vote
0
answers
81
views
My screen displays weird things
I have a problem with my raspberry pi zero. My HDMI screen shows weird things (see below). Other screens work fine it is only this one. I can move my mouse fine. Can I solve this issue or do I have to ...
- 11
1
vote
0
answers
176
views
HDMI display output rendered useless on 2 different Raspberry Pi 2
Is there a way to corrupt the firmware in the Raspberry Pi ARM?
I cannot understand what has happened to my 2 RPIs and I was never expecting software or the operating system being able to disable the ...
- 11
0
votes
2
answers
2k
views
How to enable HDMI on my Raspberrypi 3 without rebooting
I accidentally just locked myself out of my pi while editing /etc/ssh/sshd_config. The pi is still mounted as a drive on my desktop via sshfs so I looked at sshd_config and I can see that I ...
- 139
0
votes
2
answers
2k
views
Raspberry Pi custom resolution issues for 12.3" 1920x720 LCD
I have an LCD from a Chonese manufacturer. 12.3", resolution is 1920x720 pixels. When I set the following in the config.txt file I get some white stuff at the bottom of the screen. Any ideas why?
...
5
votes
4
answers
16k
views
Raspberry Pi Monitor goes black periodically
I have a Raspberry Pi 2 connected to a Dell 1707FP monitor via an HDMI-to-VGA cable. Every minute or so , the screen will randomly turn black for a second and then return. This occurrence happens ...
- 59
-1
votes
1
answer
309
views
Can a Raspberry Pi Zero support 640x480 just fine?
I almost never see anyone using a typical computer sized monitor for running Raspberry Pi Zeros. I usually only see those small LCD screens, given they're cheap, I'd like to be able to plug a ...
- 101
1
vote
0
answers
710
views
With the new openGL driver, can I make a resolution change permanent?
I am using the new openGL driver to run a WebGL app. It runs a lot smoother if I change resolution to 720p, which I can do with
xrandr -s 1280x720
This works perfect, but resets after reboot. I ...
- 31
1
vote
0
answers
71
views
RPi3 with Mate: no HDMI output without Ethernet connection
I'm running Mate (LTS) on my new RPi3. Everything is working fine as long as I plug in an Ethernet cable. If the cable is removed, my screen (connected via HDMI without adapters) immediately turns ...
- 141
1
vote
1
answer
591
views
Change default (as in nothing plugged in) screen resolution
I will probably be using my Raspberry Pi (running Ubuntu Mate) for remote desktop, but not all of the time. Sometimes I will want to plug it into a monitor.
When it's not plugged into a monitor, I'd ...
- 119
0
votes
1
answer
193
views
R.Pi gratuitous & frequent screen blank - hardware problem?
Have been using my Pi for 2 weeks, but recently discovered the monitor displaying "No Signal", and the screen went blank for a few sec before returning to normal display. I don't believe this is the ...
- 1
0
votes
1
answer
743
views
Tablet PC on Windows 8.1 with hdmi like a screen for raspberry [duplicate]
I have a tablet PC Qumo vega 8008w and I want to use it like a screen for raspberry by using hdmi port, is it possible to do it without disassembling tablet PC only using hdmi port?
2
votes
1
answer
10k
views
How to get rid of this video flickering?
When connecting my RasPio to my tv (rather old, but not tube tv anymore), I get this weird flickering everywhere on the screen where clean, thin lines with big contrast are present (including fonts). ...
- 151
1
vote
0
answers
38
views
Raspberry Pi 2 no longer connects to screen
I am the proud owner of a Raspberry Pi 2. I have had it for a while now with no major hiccoughs however today I noticed it no longer connected to my 10yr old TV, via HDMI. I have tested it on another ...
1
vote
5
answers
3k
views
Dual touch screens , one for input and a second for output
I am working on a project where I will need to use two displays. One small touch screen display for easy user input and one HDMI display for video output. So pretty much the user would select an ...
- 11
1
vote
0
answers
372
views
Eleduino 1024x600 IPS HDMI Capacitive touchscreen shows only line patterns?
I just purchased an Eleduino 1024x600 IPS HDMI Capacitive touchscreen, assembled it, powered it with external USB (a Pi2's USB was unable to keep it on), and tried the following using a Redmere HDMI ...
3
votes
1
answer
6k
views
Force HDMI output
I have a Raspberry Pi 2 and a LCD
I have no problem with LCD but i want to switch HDMI for video output . i tried to add these line to config.txt :
hdmi_force_hotplug=1
hdmi_drive=2
...
- 131
2
votes
0
answers
101
views
Raspberry Pi 2 Model B no image
I've just purchased a Raspberry Pi Model B, I've installed NOOBS latest version after I've formatted card with SD card formatter. Problem is when I'm booting it appears the menu to install Raspbian, ...
- 43
0
votes
1
answer
2k
views
Use ssh to control hdmi tty
I am running a raspberry pi without a mouse and keyboard attached (because i do not own either of them).
I already installed Kodi on the Pi using the packet manager, but get stuck on the login screen ...
- 103
0
votes
1
answer
234
views
Need to know requirements for lcd module connector for raspberry pi 2
I need to hook up a high brightness 5 inch LCD module to Raspberry Pi 2, but besides HDMI option I don't know much about RPi interfaces available for screen connection.
Most screens I can find have ...
- 103