[Q] Motorola Lapdock & Note 2?

[wilbr]

Just curious if anyone has gotten the keyboard and mouse working on a lapdock with the Note 2. The HDMI works perfectly, but the keyboard and mouse don't work. I don't know if it is possible, but it would be great if someone knows how to make this happen.

Here's a picture of my set up. Everything is connected so it *should* work. I'm thinking that it is a driver issue.

(The lapdock keyboard & mouse work great with Ubuntu 12.04, & Windows 7, & Raspberry Pi (Raspian), so I know that my connections are fine.)

Thanks!

 

[wilbr]

Hmm, guess I'll be able to answer my own question after a bit of research. It seems that the Note 2 (like the S3) can't provide MHL & OTG at the same time.

Not sure if there is a way around this. I wonder if Samsung's SmartDock works, but I don't want to spend $100 to find out.

 

[fortunz]

I'm increasingly interested in trying just this, smart dock + lapdock. Hard to imagine that it wouldn't work, but I wouldn't mind confirmation if anyone has tried it. The impressive low prices on lapdocks in the secondary market kinda offsets (and also kinda shames) the ridiculously overpriced smart dock.

I wonder if the lapdock's battery can provide as much power as the smart dock needs or if I'd have to have an external battery too.

 

[reinaldistic]

I'm increasingly interested in trying just this, smart dock + lapdock. Hard to imagine that it wouldn't work, but I wouldn't mind confirmation if anyone has tried it. The impressive low prices on lapdocks in the secondary market kinda offsets (and also kinda shames) the ridiculously overpriced smart dock.

I wonder if the lapdock's battery can provide as much power as the smart dock needs or if I'd have to have an external battery too.

the lap dock should provide 1 amp which is what the atrix needed and the chargers it came with. the s3 has a smart dock and it too only has 1 amp chargers...

plus I don't see the smart dock pulling more than 200mA it has to provide the s3 with at least 750 mA for the charge to survive mhl.

regardless amp drain in android devices is adaptive. even if the dock needs a full 800mA the phone will try to survive with the rest draining battery of course but working none the less just like trying to charge our 2A monster with a Bluetooth 150mA charger. it will try but at best slow down the discharge

Sent from my SPH-L900 using xda app-developers app

 

[xKrisx]

I don't know if an MHL adapter will supply both HDMI and OTG at the same time but I know the phone is capable of it because this is how the Samsung Smart Doc works. 3 USB ports with HDMI out.

Sent from my SPH-L900 using xda app-developers app

 

[wilbr]

I got it working. I have a Raspberry Pi that connects to the lapdock perfectly so I picked up the overpriced Samsung SmartDock and used the same cords that I'm using with the Raspberry Pi and it works pretty well.

Here's the info:

http://rpidock.blogspot.com/2012/05/raspberry-pi-and-motorola-lapdock.html

Here's some apps that make the lapdock work better with the Note 2:

Screen Standby - Need Root for this one.

Set Orientation

External Keyboard Helper

 

[shivela39]

I got it working. I have a Raspberry Pi that connects to the lapdock perfectly so I picked up the overpriced Samsung SmartDock and used the same cords that I'm using with the Raspberry Pi and it works pretty well.

Here's the info:

http://rpidock.blogspot.com/2012/05/raspberry-pi-and-motorola-lapdock.html

Here's some apps that make the lapdock work better with the Note 2:

Screen Standby - Need Root for this one.

Set Orientation

External Keyboard Helper

Hi I have got an S3 MHL(11pin) HDMI cable. I have tested HDMI & OTG simultaneously.

http://forum.xda-developers.com/showthread.php?t=1953061&page=7


It is working perfectly with my 24inch LED monitor and a USB hub containing 2 pen drives and one wireless keyboard & mouse

Now the next move i got atrix lapdock and try to connect the HDMI out from mobile to Lapdock (with necessary adopters) but i am getting only green screen.

Lapdock is working with other HDMI sources....

Any idea on how to get my note 2 HDMI working in my lapdock?...

 

[wilbr]

Hi I have got an S3 MHL(11pin) HDMI cable. I have tested HDMI & OTG simultaneously.

http://forum.xda-developers.com/showthread.php?t=1953061&page=7


It is working perfectly with my 24inch LED monitor and a USB hub containing 2 pen drives and one wireless keyboard & mouse

Now the next move i got atrix lapdock and try to connect the HDMI out from mobile to Lapdock (with necessary adopters) but i am getting only green screen.

Lapdock is working with other HDMI sources....

Any idea on how to get my note 2 HDMI working in my lapdock?...

I've never gotten a green screen so I have no idea. And, you already did the basic troubleshooting. Are you using the Smartdock or something different? If you aren't using the Smartdock, maybe pick one up to see if it works. If it doesn't fix the problem, you can always return the Smartdock.

 

[shivela39]

I've never gotten a green screen so I have no idea. And, you already did the basic troubleshooting. Are you using the Smartdock or something different? If you aren't using the Smartdock, maybe pick one up to see if it works. If it doesn't fix the problem, you can always return the Smartdock.

Tested with note 1 & MHL. Result is same getting only green screen.
But working fine with TV/monitors....Seems to be struck there....

somebody help me....

 

[wilbr]

Tested with note 1 & MHL. Result is same getting only green screen.
But working fine with TV/monitors....Seems to be struck there....

somebody help me....

Based on what you are saying, it sounds like the issue is between your lapdock & MHL cable. Like I said in my previous post, I'd pick up a Samsung SmartDock and see if it works. Just make sure that yo buy from somewhere that you can easily return it in case it doesn't work.

 

[shivela39]

Based on what you are saying, it sounds like the issue is between your lapdock & MHL cable. Like I said in my previous post, I'd pick up a Samsung SmartDock and see if it works. Just make sure that yo buy from somewhere that you can easily return it in case it doesn't work.

Dear wilbr,
Thanks for the reply.

Do you use the original samsung MHL cable?...

I am using Chinese version of MHL.

HDMI troubleshooting guide says the below....
The green screen problem could be due to HDCP non compliance or syncing problem..
anything to do with HDCP and chinese cable?...

I am trying to get an samsung official MHL or a smart dock to try out. (here in india smart dock is still not avaiable). My once route to get it is through china...

 

[wilbr]

Dear wilbr,
Thanks for the reply.

Do you use the original samsung MHL cable?...

I am using Chinese version of MHL.

HDMI troubleshooting guide says the below....
The green screen problem could be due to HDCP non compliance or syncing problem..
anything to do with HDCP and chinese cable?...

I am trying to get an samsung official MHL or a smart dock to try out. (here in india smart dock is still not avaiable). My once route to get it is through china...

I use the Samsung SmartDock. I was able to get the Lapdock to show the Note 2's screen when connected via HDMI with a Chinese MHL, but I couldn't get the keyboard/trackpad to work with it.

 

[shivela39]

hi team,

today i have tested with original samsung cable with note 2 and S3. But still i am getting green screen only.

my lapdock is AT&T atrix 4g model... anything to do with it?.....

I have tested my set top box,LAPTOP and Notion ink adam..all are working but not with my note 2.


I have seen that note 2 is always use HDCP for HDMI...Will the lapdock support HDCP?...(in some thread i have seen it supports)


Team really need somebody's help....

---------- Post added at 05:06 PM ---------- Previous post was at 05:01 PM ----------

I use the Samsung SmartDock. I was able to get the Lapdock to show the Note 2's screen when connected via HDMI with a Chinese MHL, but I couldn't get the keyboard/trackpad to work with it.

Hi refer my link posted in my earlier reply... it is easy to get the OTG simultaneously with HDMI....

For me i have connected both HDMI and USB together with lap dock.

MY lapdock keyboard and mouse are working fine and i can see it with note 2 screen....
USB port is working fine with 2 pendrives attached......

The only problem is not able to get the screen in lap dock ....only green screen...

 

[shivela39]

update....

Tried with S4. HDMI detected but blank screen.

When playing video once cable is connected S4 screen goes blank but still video is running but lapdock is blank....

 

[shivela39]

Team,

I have updated Android 4.3 + rooted hoping that it should work with lapdock... Still no luck.. still getting green screen.

Any help or update?.

wilbr,

Whats your android version?

Is it rooted or stock rom?...

 

[DarkManX4lf]

If you are using Aosp, mhl doesn't work with Aosp.

 

[pie6723]

might solve your dilemma

might workatuoxun Multi-functional HDMI Connection Kit USB OTG SD TF Card Reader MHL to HDMI Adapter
I cant post a link to it so you'll have to Google it sorry

Hmm, guess I'll be able to answer my own question after a bit of research. It seems that the Note 2 (like the S3) can't provide MHL & OTG at the same time.


Not sure if there is a way around this. I wonder if Samsung's SmartDock works, but I don't want to spend $100 to find out.

 

[gotaug]

I've already got a Bluetooth keyboard and mouse. I'm gonna order a MicroUSB to HDMI adapter and go that route. It'll be cheaper and less to carry. When I travel I'll just be able to plug into the hotel TV and go wild!

There's a YouTube video of someone demonstrating it, just search YouTube for "Samsung Note 2 Mobile Desktop with a Bluetooth keyboard mouse"

 

[nightfly2000]

Team,

I have updated Android 4.3 + rooted hoping that it should work with lapdock... Still no luck.. still getting green screen.

Any help or update?.

wilbr,

Whats your android version?

Is it rooted or stock rom?...

i had a similar problem, its was a shotty solder job on the "Budget adapter" (HDMI PINS). i took it apart and cleaned it, works perfectly now.
Plug your phone in, WAIT 5 SECONDS, Then lift up.....If you still have a problem, push F11 on the Lapdock... that manual cycles the resolution modes...at least thats what the manual says....

As far as the USB key board goes, im currently working a solution.... you have to power the MHL THROUGH THE DOCKS usb port using a donated USB cable with the end cut, solder it in directly on the board of the adapter itself, then make a micro usb extension that has the power wires cut and D- D+ reversed... I have a motorola ATRIX and im looking at the board, it looks like they have been reversed....ill post up some pics if i find this to be true.

---------- Post added at 03:37 AM ---------- Previous post was at 03:21 AM ----------

Also, sorry to bring up and old post, but I have a reason to believe that the ZOOM bluetooth keyboard uses the same 30 pin connector thats inside the lapdock (connects everything together) all the connectors are the same, except on the ZOOM the other end is a BLUETOOTH module...this would solve the whole issue... im about to get one on ebay. Ill report back in a few days.


I WILL NOT LET THIS THING BEAT ME