All Questions
119 questions
26
votes
4
answers
25k
views
How do you make the HDMI hot-pluggable on a Pi?
We have a Pi3 connected to a TV on a remote worksite.
Sometimes, the remote site has a power outage, and when power is restored, the TV and Pi get power at the same time.
The problem is that the TV ...
- 457
16
votes
6
answers
31k
views
How to disable local terminal showing through when playing video
Any local terminal text (login prompt, etc) is showing through areas of the screen that are not covered by video (i.e. the black bars on the top and bottom) when I use a remote terminal to play video ...
- 293
15
votes
3
answers
8k
views
HDMI works in safe mode, but not much else
I have my board plugged into my monitor as an HDMI input. I can get to the Raspbian desktop by uncommenting the "hdmi_safe=1" in config.txt. However, I'd like to work in a resolution that doesn't make ...
Matt Gould
9
votes
2
answers
14k
views
Pi 4B Won't boot without HDMI cable plugged to Monitor
I am a beginner with Pi. I got a Pi4 with 4GB ram and Rasbian Full Desktop installed, SenseHAT attached as well. I did the wpa_wifi config file and it works fine, will connect to WIFI with Monitor ...
- 93
9
votes
2
answers
2k
views
Can't get Pi to work with a Sony SDM-S74 DVI-D monitor
I have just bought a new RaspberryPi that I'm trying to get working with a Sony DVI monitor. I'm hoping someone can help me.
I installed Raspbian on a 8GB card, connected the Pi to a Sony SDM-S74 ...
- 241
8
votes
3
answers
13k
views
Raspbian Put monitor to sleep at night and wake in morning
I have my Raspbian running Chromium in kiosk mode and works nicely. However, I would like it to turn the HDMI display off at 10pm and wake it up at 7am. I could not find such a setting in Raspbian.
- 183
8
votes
1
answer
22k
views
How to make Raspberry use HDMI audio as default system output?
I've just installed Raspberry Pi and everything works great, except I can't get the default system sound to use HDMI. If I run something like omxplayer -o hdmi <filename> then the sound works, ...
- 181
7
votes
1
answer
2k
views
Change output to HDMI after tv has turned off [duplicate]
Possible Duplicate:
How do I force the Raspberry Pi to turn on HDMI?
I have a Pi that is connected to my TV via hdmi.
My pi acts primarily as a server, and its turned on all the time for this ...
- 193
6
votes
2
answers
2k
views
How to detect dpi automaticly and set zoom?
I have an Raspberry Pi 4b with Rasbian OS. I want to connect this device to an Full-HD or 4K (Retina) display (not at the same time). This works, but there is no automaticly scaling on 4k like on ...
6
votes
2
answers
5k
views
Display Powersaving Options (Pi powered on display USB)
Scenario
I'm building several wall mounted kiosk that will be placed in remote locations and i'm trying to find a way to build in some longevity / power saving options (IE put them to sleep when the ...
- 163
5
votes
3
answers
26k
views
Blank screen after installing Raspbian
I added this to my config.txt file:
hdmi_drive=1
I can see a rainbow and recovery mode prompt.
I pressed Shift key to enter recovery mode and installed Raspbian.
After installation, I can see a ...
- 211
5
votes
2
answers
3k
views
What to look for in a large HDMI+USB touchscreen for raspberry pi?
I have been searching quite a bit for a larger (14"+) monitor that has basic out of the box touchscreen capability with the raspberry pi. One that uses USB for the touch connection and preferably HDMI ...
- 111
5
votes
2
answers
1k
views
Set RAM split based on HDMI status on boot
For the most part, I run my Raspberry Pi headless (which requires very little VRAM). However, I occasionally plug in a monitor (usually after I mess up my SSH configuration).
Is there a way to have ...
- 600
5
votes
3
answers
6k
views
Raspberry Pi HDMI black screen (SSH works fine)
My Raspberry Pi will boot fine and I can access via SSH however when connected to HDMI it is just a black screen that appears. I notice that the display screen resolutions are alternating back and ...
- 87
5
votes
1
answer
3k
views
Raspberry Pi corrupts the SD Card often
I currently start using different Raspberry Pis to monitor my (Wi-Fi) network. (OS: Raspbian)
Unfortunately one Pi often corrupts the SD Card and I definitely don't just plug off the power cable. It ...
- 350
4
votes
2
answers
36k
views
How to enable sound on HDMI?
I have looked at all kinds of tutorials, I modified the /boot/config.txt by adding hdmi_drive=2 and sound just does not work or if it does it always is over analog out.
I just want sound over HDMI ...
user32083
4
votes
2
answers
4k
views
Output terminal to HDMI?
I was wondering if there was any way to, via SSH, have the terminal "copied" to my HDMI output. Or at least be able to redirect the output of specific terminal-only programs to HDMI.
4
votes
1
answer
4k
views
Raspberry Pi 4 touchscreen misbehaving when using a secondary monitor
First of all I recorded a video on the phenomenon, this might be more descriptive than my words: video of the problem
I have a project in which I have to use two displays: the first one is the 7 inch ...
- 211
4
votes
2
answers
707
views
Display goes blank periodically on LG TV
I am using Raspberry Pi 2 with Raspbian OS.
It is connected with usb wifi adapter, a bluetooth adapter for keyboard
and power supply is 5v 2000mA AC/DC adapter.
RPi goes blank periodically for a ...
- 143
4
votes
3
answers
9k
views
How can I change the HDMI resolution without rebooting my Raspbian system?
How can I change the HDMI resolution of my running Raspbian (Jessie) system without rebooting my Raspberry Pi 3?
- 999
4
votes
3
answers
3k
views
Do HDMI to VGA cables work with Raspberry Pi?
Do these kinds of HDMI to VGA cables work with Raspberry Pi?
- 173
4
votes
2
answers
10k
views
HDMI vs DSI, pros and cons? [closed]
I am curious what the main differences are between using the HDMI output or the DSI connector to hook up a screen?
I understand that HDMI carries audio while the DSI ribbon connection will not, and ...
- 41
4
votes
1
answer
386
views
Why is HDMI audio working differently for Sony and Samsung?
I have a strange different behaviour in raspbian showing up between two TVs. A Sony Bravia 32W670A and a Samsung LA32A650A1F
The simplest demonstration for this problem is to build the hello_audio....
- 12k
4
votes
2
answers
2k
views
how to setup and mirror two visual screen (a) touch 3.5 touch screen in general 40 pin connector and (b) hdmi 1 over TV?
I have new 4GB Rasberry Pi 4. I would like to mirror a touch screen,3.5 inch TFT LCD over 40 point connector and HDMI 1 over TV. I could not connect both and mirror together. Sorry I new to Rasberry ...
- 91
4
votes
1
answer
436
views
Rpi 3B no HDMI output
Recently I've received a RPi 3 - model B on which I installed Raspbian.
After configuring the OS and adding some stuff I've shut down the Pi.
Next day I took it with me to school, from there on all ...
- 51
4
votes
1
answer
2k
views
Video and audio out of sync when playing 1080p 60fps on Raspberry Pi 2
I have a 1080p @ 60fps mp4 video saved in a external USB HDD. I've tried playing it on Raspbian in my Pi 2 (the new one, 1 GB RAM, 1 GHz) with Omxplayer, but the audio and video are out of sync. The ...
- 179
3
votes
4
answers
7k
views
Fullscreen browser for Raspberry Pi
I've got a Raspberry Pi Modell B and I want to run an HTML5 Dashboard on it.
The Pi just needs to display some Canvas Charts in fullscreen. I don't want to see the system bars. The Linux ...
- 131
3
votes
4
answers
25k
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:
...
3
votes
2
answers
7k
views
RPi HDMI to RCA
I live in India and intend to buy a Raspberry Pi 2 Model B sometime soon but do not have a display with a HDMI input. So I'm stuck with RCA (3pin Yellow/White/Red) and S-video (No VGA). I also cannot ...
- 31
3
votes
1
answer
7k
views
HDMI Output works with NOOBS but not after I install an OS
I am brand new to RasPi.
I installed the NOOBS onto an SD card. (formatted using SDFormatter)
On boot the NOOBS screen came up on HDMI.
I selected Raspbian.
After NOOBS installed Raspbian and (I ...
- 67
3
votes
0
answers
1k
views
Raspberry Pi 4: Console on first HDMI screen, X11 on second HDMI screen
The new Pi 4 has two HDMI Ports. After booting Raspbian, the first screen (HDMI-0) should display the console and the second screen (HDMI-1) should display the X11 desktop.
My first thought was ...
- 31
3
votes
0
answers
3k
views
Getting touchscreen to work in raspbian / kodi
I got a HANNS-G HT231HPB touchscreen which I want to get fully working on raspbian and kodi.
It seems to work in the normal lxde on raspbian, but when I start kodi I get no touch events.
Can someone ...
- 829
2
votes
11
answers
45k
views
Raspbian, no audio HDMI, have tried all the troubleshooting I can find
I know this is a noob question, so I apologise in advance!
I've been googling for hours, have ran through all the steps for troubleshooting sound through HDMI; un-commenting the config file sound ...
- 21
2
votes
2
answers
3k
views
Can I use video and HDMI output at the same time?
I've got my Raspberry Pi to work as a torrentbox and mediacenter AIO. Can I hook up the HDMI to my beamer and the RCA output to my TV?
I guessing I cannot since it's an analog signal and a digital ...
- 21
2
votes
2
answers
1k
views
How do I automate removal and re-enabling overscan as I move the pi between HDMI and TV?
I use my Pi (with raspbian) in two locations, at the desk I have a DVI-D monitor hooked to the HDMI output and in the livingroom there is a big old thick television using PAL composite.. I would like ...
- 23
2
votes
3
answers
4k
views
how to start xclock (or something else) to be displayed on my HDMI device on Raspbian console session?
I have a raspberry pi 2 and installed the Raspbian Version from 2015-05-05.
As "boot option" I chose "Console Text console..." because I don't want a full desktop.
I logged in from my remote PC via ...
- 123
2
votes
1
answer
4k
views
Raspberry loosing HDMI output after a period of time
This is a follow up question to:
Change output to HDMI after tv has turned off
This solution works partially. I can turn off the TV and turn it on again and get the screen back on my TV. However this ...
- 193
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
2
votes
2
answers
601
views
How do I tint my monitor red for nighttime use?
I like my monitor dim and red-tinted at night. I used to use
xcalib -green .1 0 1 -alter
xcalib -blue .1 0 1 -alter
on my laptop. I'm now using a raspberry pi2 with an HP 2010i monitor and xcalib ...
2
votes
3
answers
1k
views
No video output for raspberry pi 2 model B with Jasper image
I just ordered my raspberry pi 2 model B.
I am using a class 10 16Gb Sandisk SD card. I used Win32DiskImager to burn the pre compiled Disk image provided by Jasper.
I connected the HDMI cable of my TV ...
- 121
2
votes
6
answers
15k
views
Raspberry Pi B+ not displaying screen
I recently bought Raspberry Pi B+ model, When I try to connect it with my LED TV(24 inch) using HDMI cable it's not displaying anything, showing as no signal.
I try to connect basic connectivity ...
2
votes
1
answer
1k
views
Why wont the Pi recognize my TV when I plug it in after boot?
Currently I am using a relatively new Westinghouse TV with my RasPi. It works perfectly with one caveat, I need to boot with it plugged in to the HDMI for it to work.
I run my Pi headless most of ...
- 123
2
votes
2
answers
4k
views
Raspbian Wheezy Audio
I've got my new Rpi running with the raspbian wheezy debian distro which is great but I can't seem to play / hear any sound.
Does anyone know if the wheezy distro comes with audio drivers pre-...
2
votes
1
answer
749
views
Raspberry Pi 3 with Raspbian Jessie booting, but no HDMI output. Tried most suggestions on the forums
How do I know the PI has booted?
I connected my Pi via an RJ45 to my router and was able to SSH into it.
What suggestions have I followed?
I tried changing the settings in the config.txt. Mixed and ...
- 131
2
votes
4
answers
13k
views
When using display_rotate=1 half the screen is black
I've setup my Raspberry Pi as a kiosk, on a portrait-mounted HDMI TV.
After setting display_rotate=1 and the GPU split to 128MB in /boot/config.txt the screen is now the correct orientation.
However ...
2
votes
1
answer
1k
views
Sound is being cut off
On the raspberry pi connected to an hdmi TV, any command that emits sound has the first two seconds of audio cut off. Numerous options have been enabled in config.txt. How do you make it play audio ...
- 119
2
votes
0
answers
580
views
Attempting to control a Raspberry Pi running Kodi with a LG RF remote
I'm running a Kodi application within a Raspberry Pi4 connected to an HDMI port on an LG TV with an RF remote. The problem is that I'm not able to control the Kodi application using the LG's RF ...
- 21
2
votes
0
answers
168
views
Assign HDMI outputs of a stacked Raspberry Pi to separate outputs
If you stacked 4 Raspberry Pi's, as you would a regular cluster computer, can the HDMIs of each Raspberry Pi be assigned to separate AV outputs or are there any programs, that do this for you. For ...
- 29
2
votes
0
answers
2k
views
Why would my Raspberry Pi only display a blinking "_" after bootup
I've attached a HDMI monitor to my Pi running Raspbian. In the past external displays have worked fine.
Recently, when I connect my Pi to a HDMI monitor I get the usual bootup screens and the bootup ...
- 121
2
votes
0
answers
684
views
Raspberry Pi - HDMI damaged?
My Raspberry Pi have some strange display output (as seen in bottom right corner of attached image). Yesterday all worked fine.
Today I went to an other place and connected the Pi to the display. ...
- 183