raspfly
Posts: 132
Joined: Sun May 27, 2012 1:42 am

Tab HDMI input

Thu Apr 17, 2014 12:27 am

Is it possible to attach a Raspberry Pi to any of those Tabs with a HDMI port ?
How can we make out if any devise having an HDMI port is programmed for data input or output ?
A TV takes input but a Tab / Mp4 player might be only for output.

Tarcas
Posts: 741
Joined: Thu Jan 09, 2014 5:38 am
Location: USA

Re: Tab HDMI input

Thu Apr 17, 2014 1:04 am

No device on the market, as far as I know, has both input and output on the same port. If it's used for output, it can't be used for input and vice versa.

raspfly
Posts: 132
Joined: Sun May 27, 2012 1:42 am

Re: Tab HDMI input

Thu Apr 17, 2014 2:56 am

Is there any way to make out what the HDMI port in any device is made for ? Input or Output ?
TV is a display device but it is HDMI port receives input but a Tab or MP4 player also has a display but mostly their HDMI port is made for output.

Tarcas
Posts: 741
Joined: Thu Jan 09, 2014 5:38 am
Location: USA

Re: Tab HDMI input

Thu Apr 17, 2014 3:29 am

raspfly wrote:Is there any way to make out what the HDMI port in any device is made for ? Input or Output ?
TV is a display device but it is HDMI port receives input but a Tab or MP4 player also has a display but mostly their HDMI port is made for output.
It sounds like you answered your own question. In a display device such as a TV or monitor, the HDMI port is for input. In a source device, be it a laptop, tablet, phone, Blu-ray player, Raspberry Pi or whatever, it will be output. If you're asking whether there's a marking or a difference in the physical connector, I don't think that there is. The Wikipedia page on HDMI may have more details though, as may hdmi.org

raspfly
Posts: 132
Joined: Sun May 27, 2012 1:42 am

Re: Tab HDMI input

Thu Apr 17, 2014 6:41 am

So does it means there is no way we can use the display of a tab or a mp4 player (through its hdmi) as a display for Raspberry Pi ?

ghans
Posts: 7880
Joined: Mon Dec 12, 2011 8:30 pm
Location: Germany

Re: Tab HDMI input

Thu Apr 17, 2014 7:12 am

If the Tablet works , install a remote desktop client or
a VNC client and the matching server on the Pi.
Simple , and good enough for most cases.

Searching for a way to connect the display directly will
only end in frustration and unnecessary monetary expenses.
If you want to go down that route , try to get the LCD panel
out of the tablet and then ping one of the many sellers
of HDMI driver boards on i.e. eBay .

ghans
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