[Q] USB-VGA Display Adapter Graphics Card works with android

leomg · May 3, 2011

hello, this is my first post, and i wish that somebody know if this adapter graphics card:
http ://www .dealextreme. com/p/usb-2-0-to-vga-display-adapter-cable-for-extra-monitor-screen-34756
http ://www .pandawill. com/usb-to-vga-usbvga-display-adapter-for-monitor-screen_p38476.html
or this
http ://www .amazon. com/Plugable-UGA-125-Multiple-Monitors-1280x1024/dp/B003IE49T8/ref=sr_1_3?ie=UTF8&qid=1304438526&sr=8-3

works in a device with android and usb host.
will be nice if i could connect any cellphone to a lcd tv or connect a tablet to two monitors.

caffeinated chris · May 3, 2011

leomg said:
hello, this is my first post, and i wish that somebody know if this adapter graphics card:
http ://www .dealextreme. com/p/usb-2-0-to-vga-display-adapter-cable-for-extra-monitor-screen-34756
http ://www .pandawill. com/usb-to-vga-usbvga-display-adapter-for-monitor-screen_p38476.html
or this
http ://www .amazon. com/Plugable-UGA-125-Multiple-Monitors-1280x1024/dp/B003IE49T8/ref=sr_1_3?ie=UTF8&qid=1304438526&sr=8-3

works in a device with android and usb host.
will be nice if i could connect any cellphone to a lcd tv or connect a tablet to two monitors.

This depends solely on which phone you have.
Also try going to xdaforums.com and scroll down to your particular phone and search thier general forum for it, mainly because chances are someone already has asked or talked about this

zarathustrax · May 4, 2011

I don't think any Android phone will support USB to Video adapters. Some android phones have hdmi or video out capabilities. But those types of USB to Video adapters need special drivers which I don't believe are available for Android OS.

leomg · May 4, 2011

zarathustrax said:
I don't think any Android phone will support USB to Video adapters. Some android phones have hdmi or video out capabilities. But those types of USB to Video adapters need special drivers which I don't believe are available for Android OS.

I think that too, but there are drivers for linux and then android should make it work. I was just wondering if anyone tried.

leomg · May 6, 2011

here i found a list of the devices that are compatible with displaylink:
w w w.displaylink.com/shop/index.php?product=5

and in "download driver" are drivers for linux.
someone know if the driver for linux works for android ??

Pd: If a linux based router can: w w w.engadget.com/2009/05/18/displaylink-for-linux-turns-a-humble-wireless-router-into-a-beau/
why android cellphone or tablet cant.

also i found an app ($1,99) that allow to convert ipad screen into a new display for a computer through wireless, is there some app like that for android??

zarathustrax · May 6, 2011

leomg said:
here i found a list of the devices that are compatible with displaylink:
w w w.displaylink.com/shop/index.php?product=5

and in "download driver" are drivers for linux.
someone know if the driver for linux works for android ??

Pd: If a linux based router can: w w w.engadget.com/2009/05/18/displaylink-for-linux-turns-a-humble-wireless-router-into-a-beau/
why android cellphone or tablet cant.

also i found an app ($1,99) that allow to convert ipad screen into a new display for a computer through wireless, is there some app like that for android??

Android runs on top of a modified linux kernel, but it's not a true linux distro, so it can't run linux apps or drivers. Something would have to be written special. Maybe if you can run ubuntu off your device, you may be able to do something. What device do you have that has USB host?
Also, if its not USB 2, you may not have enough speeds to transfer. I think sending video output through usb would take a lot of processing power, which it may not be worthwhile with a phone.

What device do you have and exactly what are you trying to do... If I knew what you're trying to do, I might be able to help. I'm good with stuff like that.

You could maybe just get a DLNA adapter and wireless send video to a monitor or TV, instead. I'm not sure what you are exactly trying to get accompliched. give more details.

leomg · May 7, 2011

I bought a SmartQ t10, that still doesnt arrive, I bought it for the screen and battery, then i saw this adapter, so im seeing if can get video out.

I found a mailing list where a guy with a motorola droid (who managed to switch to USB host mode) trying to do this.
w w w.mailinglistarchive.com/html/android-kernel@googlegroups.com/2010-07/msg00073.html

according to what I understood you should enable the auxiliary output video and change the driver to operate with mobile device processor.

leomg · May 8, 2011

here i found how to do it:

sites.google.com/site/voyageofbeagleboard/Home/displaylink-for-android

Code:

DisplayLink for android (latested version)
How to build displaylink driver for android

Displaylink is asic vender for USB-DISPLAY converter. It's is little slow, but expand your gadet example for android based equipment. So I modified the displaylink driver called udlfb for android.

How to build
- prepare android source code. I checked on beagleboard and android2.0
- extract and replace files with framework-core.tgz under framegework/base
- extract and replace files with kernel.tgz under kernel
- rebuild kernel and android

Description of tar archives
- framework-core.tgz
  Import mouse and touch features support from android-x86 project . This is depend on android2.0 eclair
  Touch features is following as:
    Touch the right corner on and off touch feature.
    [HOME] Touch the status bar
    [MENU] Touch the status bar from left to right
    [BACK]  Touch status bat from right to left 

- kernel.tgz
  udlfb driver for android. Original udlfb driver source code is in latest linux driver/stagine/udlfb
  Add double size frame buffer for pan_display
  Add pan_display function
  Make maximu resolution 1024x768. Original code support much more high resolution, but It cause crash under memory allocation.

Contents of tar archives
framework-core.tgz
==============================
Import usefule function from android-x86
  core/java/android/view/RawInputEvent.java
  include/ui/EventHub.h
  libs/ui/EventHub.cpp
  services/java/com/android/server/InputDevice.java
  services/java/com/android/server/KeyInputQueue.java
  services/java/com/android/server/WindowManagerService.java
  services/java/com/android/server/status/StatusBarView.java
  services/java/com/android/server/status/TouchFeature.java


kernel.tgz
==============================
touchscreeen driver depend my equipment.
  drivers/input/touchscreen/Kconfig
  drivers/input/touchscreen/usbtouchscreen.c

DisplayLink driver for android
  drivers/video/Kconfig     ->add configuration
  drivers/video/Makefile    ->add udlfb/Makefile
  dotconfig                     -> .config example
  drivers/video/udlfb/       -> driver

this will work??

Ghaztehschmexeh · May 8, 2011

If your phone does not have USB host mode you can modify your kernel to support it. Then it's a case of getting drivers, which may or may not be difficult.

leomg · May 9, 2011

Yes, i found that too, usb host for nexus one: sven.killig.de/android/N1/2.2/usb_host/
i guess that work for any device.

but I'm interested in that first run the driver already having a device with USB host, because is there more research about getting usb host or usb otg

bled82 · Jun 30, 2011

Here is a android 1.6 driver from the opensource .
http://libdlo.freedesktop.org/wiki/

or
https://github.com/magoroku15/DisplayLink-driver-for-android

Any one know how to use it or update it to work on newer android ?

el_venga · Jul 1, 2011

Gingerbread has very good compatibility mode so it "could" run there.

Sent from my Huge Device 2 using XDA App

jaliltarnab · Jan 12, 2014

zarathustrax said:
Android runs on top of a modified linux kernel, but it's not a true linux distro, so it can't run linux apps or drivers. Something would have to be written special. Maybe if you can run ubuntu off your device, you may be able to do something. What device do you have that has USB host?
Also, if its not USB 2, you may not have enough speeds to transfer. I think sending video output through usb would take a lot of processing power, which it may not be worthwhile with a phone.

What device do you have and exactly what are you trying to do... If I knew what you're trying to do, I might be able to help. I'm good with stuff like that.

You could maybe just get a DLNA adapter and wireless send video to a monitor or TV, instead. I'm not sure what you are exactly trying to get accompliched. give more details.

he simply wants to project his phone display on a lcd tv or a pc monitor.

eddddddy · Mar 9, 2014

many ppl with no hdmi output would love to stream by usb, it also allows to connect other usb devices which not supported with MHL.
usb 2.0 is fast enough to stream.

ncccnn · Mar 19, 2014

i have same problem

@nogia · Mar 21, 2014

JamesJrugs · Mar 23, 2014

vga adapter

i was thinking about getting 7 of these to run an office, but they are hdmi.

http://www.ebay.com/itm/TBS2910-Mat...1085685686?pt=Desktop_PCs&hash=item4d163ea3b6

and i stumbled apon this anyone tried this yet? idk how it interacts with android to get the display, but it must work somehow lol

http://www.ebay.com/itm/MHL-Micro-U...Phone_PDA_Cables_Adapters&hash=item4ac7878c5f
<img src="http://i.ebayimg.com/00/s/NTAxWDQyMA==/z/vKYAAOxy4M5R9wYk/$(KGrHqEOKpwFHcVK2kc5BR9wYkDdGg~~60_3.JPG">

techno489 · Apr 21, 2020

I've been researching the same kind of thing. I have an android head unit that I want to show everything I see on my roof screen but so far no luck. I have tried UBS to RCA and UBS to VGA adaptors but so far no luck. I even thought maybe something like android to android screen share like 'say' mobile-phone to android-tv-box and connect the tv-box in the car and share my Android head-unit to the tv-box but I can't find an app that works with doing that either.

[Q] USB-VGA Display Adapter Graphics Card works with android

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