kindle as an additional PC screen

[thomass]

I just tried this and works perfect. It also the safest "hack" I know
Thanks..

[kind]

Thanks a lot. It is just what I need, but it must be improved.

[kindle3zeng]

I took a look at your code, and found that we were working on different levels. My program directly writes to the framebuffer of the kindle for showing picture, while yours asks the web browser to the job for you.

[kranu]

Originally Posted by kindle3zeng

I took a look at your code, and found that we were working on different levels. My program directly writes to the framebuffer of the kindle for showing picture, while yours asks the web browser to the job for you.

Yep. Yours is a lot more advanced than mine. I have little knowledge of how I would even start to write to the framebuffer.

[MrVer]

kranu, how does your program work? Is there a need to update screen manually? Or does it work like RDP?

[kindle3zeng]

Originally Posted by MrVer

kranu, how does your program work? Is there a need to update screen manually? Or does it work like RDP?

well,his program works this way: the host computer has a web server, which the browser of your kindle can connect to. The page shown in your browser on kindle is the a picture of the screenshot of your pc. The page refreshes automatically, so it will show "realtime" screenshots of your pc. As pointed out by others this maybe the safest way to do the job, sine it doesn't need any changes to your kindle at all. But the performance could be an issue and it would be hard to work around.

[Mario1up]

That's a great script, Kranu. I'm having fun hosting little bits of HTML on my local network. Do you know if it's possible to link a local HTML file to throw up instead?

On topic though, I found that with your current image dimensions, the Kindle creates a scroll bar and scales the image a little. I reduced them to 595x701 and it works great with no scroll bars and pixel-perfect scaling. I also changed the "100%" scaling to exact pixel dimensions. This is very useful, thank you.

[kranu]

Originally Posted by Mario1up

That's a great script, Kranu. I'm having fun hosting little bits of HTML on my local network. Do you know if it's possible to link a local HTML file to throw up instead?

On topic though, I found that with your current image dimensions, the Kindle creates a scroll bar and scales the image a little. I reduced them to 595x701 and it works great with no scroll bars and pixel-perfect scaling. I also changed the "100%" scaling to exact pixel dimensions. This is very useful, thank you.

Yes, it's very much possible to output an HTML file. You would just use code similar to reading the picture but instead use your file. However, I wanted to keep my application as self-contained as possible, so I put all the HTML code as strings inside of the python script.

Hmm, I never really experimented with the size of the image. I just picked something that looked OK to me I'll take note of those dimensions in case I ever release an update to my script.

[pconwell]

If you get an error like this:

$ python webserver_v1.py 
Traceback (most recent call last):
  File "webserver_v1.py", line 16, in <module>
    import wx
ImportError: No module named wx

You probably need to install python-wx:

$ sudo aptitude install python-wxtools python-wxgtk2.8

You probably don't need both packages, but I'm lazy and like to shotgun blast my problems.

[pconwell]

Kranu,

I made some slight modifications to your script. Nothing major, just makes it a little easier to see how to get the kindle to connect.

http://pastebin.com/Q6ipRm78

----

Here is a "better" way to get the ip, but I can't get the white space out between the IP and the port. If I can figure out a way to get rid of the white space, I'll post it up on pastebin again. And yes, I'm sure there is a much cleaner way to do this, but I'm not *that* familiar with awk. Anyway, you can see what I'm getting at:

  os.system("/sbin/ifconfig | grep inet | grep -v inet6 | grep -v 127 | awk '{ sub(/inet addr:/, \"\"); print }' | awk '{ sub(/Bcast:.............../, \"\"); print }' | awk '{ sub(/M................./, \"\"); print }' | awk '{print $0,\":8000\"}'")

Ha, nevermind, I figured it out. Here is the 'correct' (if not very clean) way to do it:

  os.system("/sbin/ifconfig | grep inet | grep -v inet6 | grep -v 127 | awk '{ sub(/inet addr:/, \"\"); print }' | awk '{ sub(/Bcast:.............../, \"\"); print }' | awk '{ sub(/M................./, \"\"); print }' | awk '{print $1,\":8000\"}' |awk '{ sub(/ /, \"\"); print }'")

... and here is the pastebin: http://pastebin.com/2zTgPLFA

[kranu]

Originally Posted by pconwell

If you get an error like this:

$ python webserver_v1.py 
Traceback (most recent call last):
  File "webserver_v1.py", line 16, in <module>
    import wx
ImportError: No module named wx

You probably need to install python-wx:

$ sudo aptitude install python-wxtools python-wxgtk2.8

You probably don't need both packages, but I'm lazy and like to shotgun blast my problems.

Yep, I mentioned that you needed wx python at the beginning of the instructions.

[kranu]

Originally Posted by pconwell

Kranu,

I made some slight modifications to your script. Nothing major, just makes it a little easier to see how to get the kindle to connect.

  os.system("/sbin/ifconfig | grep inet | grep -v inet6 | grep -v 127 | awk '{ sub(/inet addr:/, \"\"); print }' | awk '{ sub(/Bcast:.............../, \"\"); print }' | awk '{ sub(/M................./, \"\"); print }' | awk '{print $1,\":8000\"}' |awk '{ sub(/ /, \"\"); print }'")

... and here is the pastebin: http://pastebin.com/2zTgPLFA

Interesting. Unfortunately, this doesn't work on Windows (for obvious reasons). I have a pretty good idea for how to do it, so I'll work on it, and post a cross-compatible solution.

Update: I found a solution. I updated the program.

[blackmost]

Dear Guys,

You have done what I am looking forwards for Kindles DXG. Kindle as a PC monitor, that would be very cool.

Have you got some new progress? please let us know your solution when you get the job done. I am eager to use it.

Originally Posted by kranu

Interesting. Unfortunately, this doesn't work on Windows (for obvious reasons). I have a pretty good idea for how to do it, so I'll work on it, and post a cross-compatible solution.

Update: I found a solution. I updated the program.

[thomass]

Originally Posted by blackmost

Dear Guys,

You have done what I am looking forwards for Kindles DXG. Kindle as a PC monitor, that would be very cool.

Have you got some new progress? please let us know your solution when you get the job done. I am eager to use it.

https://www.mobileread.com/forums/sho...d.php?t=148581

[hawhill]

I have finished a first version of a VNC viewer. It's another approach to bringing PC screen content to the Kindle (tested on K3W and KDXG). Discussion and software is in a separate thread.