FBIOGET_FSCREENINFO Bad file descriptor

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Launch native binary from /data/data/app/binary using ProcessBuilder

What is the expected output? What do you see instead?
A screenshot is made. Binary exits.

What version of the product are you using? On what operating system?

Android 2.3.6, Nexus One; not rooted.

Here's a logdump:

I/LogThread(21851): Program initialized
I/LogThread(21851): Starting server...
I/LogThread(21851): - Socket creation
I/LogThread(21851): - Socket binding
I/LogThread(21851): - Socket in listening mode
I/LogThread(21851): Server started.
I/LogThread(21851): Listening on 0.0.0.0:42380
I/LogThread(21851): Signal handling setup
I/LogThread(21851): Starting main loop.
I/LogThread(21851): << select() on sockets... >>
I/LogThread(21851): Incoming client connection
I/LogThread(21851): - Connection accepted
I/LogThread(21851): << select() on sockets... >>
I/ScreenshotService(21851): Error writeImageFile: null
I/LogThread(21851): Client socket signaled for input
I/LogThread(21851): - Retreiving data
I/LogThread(21851): - Command identified as SCREEN
I/LogThread(21851): - Taking screenshot
I/LogThread(21851): An error occured: ioctl FBIOGET_FSCREENINFO Bad file 
descriptor
I/LogThread(21851): Exiting now...

Original issue reported on code.google.com by genn...@codeseekah.com on 21 Mar 2012 at 8:18

[GoogleCodeExporter]

By default native servce access fb0 Framebuffer but In latest mobiles like 
Samsung Galaxy S3 there are multiple frame buffers like fb0, fb1, fb2..... and 
none of them is accessible. I need to understand which one is the primary 
buffer where I can get Frames. Can someone please help me with this ?

Original comment by DIPI24...@gmail.com on 8 Jan 2014 at 6:07

[GoogleCodeExporter]

I am facing the same issue, on an Xperia Neo. If I understood the problem 
correctly, we can take screenshots without root permissions only when the 
framebuffer is readable from everyone.

Original comment by alessand...@gmail.com on 20 May 2014 at 7:18