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Questions tagged [hdmi]

HDMI is a compact audio/video interface for transmitting uncompressed digital data.

HDMI (High-Definition Multimedia Interface) is a compact audio/video interface for transmitting uncompressed digital data. It is a digital alternative to consumer analog standards, such as radio frequency (RF) coaxial cable, composite video, S-Video, SCART, component video, D-Terminal, or VGA.

http://en.wikipedia.org/wiki/HDMI

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Sending CEC commands via command line over HDMI

My master plan is to be able to send CEC commands from my raspberry pi to do things such as turn on/off the tv as well as other devices connected to the TV. Then I will be adding voice recognition to send these commands...that's for another day. I…
Austin
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Developing for the HDMI port on Linux

How would it be possible to exclusively drive the HDMI output from an application, without allowing the OS to automatically configure it for display output? For example, using the standard DVI/VGA as the primary display, but sending Mplayer video…
Dustin Oprea
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How to set default audio output on Raspberry Pi to hdmi?

if I execute: speaker-test -D plughw:1,0 -t wav , sound gets played over the hdmi cable, as it is supposed to. But if I type speaker-test -t wav , no sound gets played over the hdmi cable, so I guess the issue is the default output device. Here is a…
Pascal Rockenstiehl
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Scrollbar behaviour changes when connected to an external monitor

I have a vertical menu which is scrollable on the Y axis with overflow-y: scroll. I'm on a MBP16 and on both Chrome and Safari the scrollbar for this div only appears when I hover it, looking like this But when I connect my MBP16 to a 1080p display…
Otavio Luis Vidal
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Identifying whether a laptop has HDMI 2.0 or 1.4

Sorry if this is considered off-topic - not sure where else to ask this. I have a ASUS ROG GL552VW laptop and am trying to figure out whether the HDMI port on it supports HDMI 2.0. I wish to use it to output 4k content onto a TV. However, after…
mrnovice
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Get HDMI EDID data

I am developing an application which mirrors itself to any connected HDMI monitor using MHL adapter. The issue is that I need to get the monitor data like manufacturer, serial no., resolution, screen size etc. if it is really displaying my content…
Mohamed Zakaria El-Zoghbi
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How to disable/enable HDMI on Raspberry Pi?

So I can use "tvservice -o" to turn off the HDMI on the raspberry Pi, and "tvservice -p" to turn it back on. After turning it back on I apparently need to do "fbset -depth 8 && fbset -depth 16" to re-enable the frame buffer and then force an X11…
AlastairG
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How can I access a DDC/CI Display Dependent Device from a Windows application?

I am modifying a monitor controller for a prototype. It would be convenient to send commands to the prototype using DDC/CI. In Windows, I can't find an obvious way to send a DDC/CI command to a "display dependent device". The Monitor Configuration…
joshuanapoli
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Remove underscan/frame on ios external display when using Lightning HDMI Adapter

I've been struggling with this for a while. As we all probably know, the Lightning HDMI adapter doesn't support 1080p output when it comes to apps that use connected display as second screen (the only way to reach 1080p is video streaming but…
Stefano Mondino
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Android secondary display - persistence across activity invocation

I am using the Android MediaRouter (API 16) and Presentation (API 17) classes to generate & manage a secondary display. I followed the example in ApiDemos to create unique non-mirrored output, and so far it works fine (testing with Nexus 10…
gcl1
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Detect HDMI Port in android device

I am working on a Android development app that needs to detect HDMI Port. Can some one guide me how can i detect HDMI port in andorid device programatically. Thanks in Advance
user1814512
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HDMI out programming for dual screen

In my search I found that, the Android SDK provides no support for controlling HDMI port activities and handling HDMI output, as of now. Though certain device manufacturers like Motorola (don't know if any other does that too) provide API's for a…
ssup
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Recording the screen of an iPad 2

First of all: This question is not directly programming related. However, the problem only exists for developers, so I'm trying to find an answer here anyways since there are maybe other people on this community who already solved the problem. I…
Etan
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Is it possible to show different content on the Android's screen and the screen connected via HDMI?

I'm wondering if I can develop an application, where I can have the main content displayed on a big screen connected to my Android via HDMI and use the Android's touchscreen as a controller displaying different content. So far the videos I've seen…
znq
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Change Android HDMI output resolution

I have a screen which only supports one custom resolution(2400x1200), how can I change Android HDMI output resolution to 2400x1200? We can use xrandr on Linux to control parameters of HDMI, but there is no such tool on Android. I googled a lot and…
Chengkun Shen
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