4.8 Embedded (BeagleBone) Screen Rotate [Solved]
I am attempting to develop an app to run on a BeagleBone black
My next challenge is to get the display rotated through 180
So far I have had no success
The app runs fine on the BeagleBoard before any rotation
I have tried several different things so far based on lots of searches but to no avail :(
I have tried adding
but that had no affect
I then tried reconfiguring and recompiling qt from source on my host (ubuntu 14.04 in vm) adding the '-qt-gfx-transformed' option to configure program
Qt seemed to configure and compile correctly
I then added
to my main.cpp (above main(...))
QTPLUGIN += qgfxtransformed
to my .pro file
Then when I attempt to build the project I get a linker problem ":-1: error: cannot find -lqgfxtransformed"
I am using qtcreator g++ to build the application
Please help! I have been stuck on this for hours!
Shortly after posting this I realised that I had actually solved this about an hour before without realising it! DOH!
Reconfiguring and recompiling the qt source actually did fix my problem, I needed no code changes and I just simply did not add the "-display "transformed:rot180" to the running arguments of qt
I discovered my error when I tried to run the program file explicitly using that extra argument and it worked!
This post is deleted!
can you explain for detail about "Reconfiguring and recompiling the qt source actually did fix my problem"
i can't solve the problem
@ronaldsamuelpasaribu He simply recompiled Qt from source and configured it to include qgfxtransformed (whatever this is). I don't know if the thread creator will ever answer because also this post is 9 months old.
@jjan thanks for respon my post
i succeed reconfigure qt
but if i build aplication with qt creator (reconfigured)
i have error
cannot find -lqgfxtransformed
can you help?
and one more question
error in my friendlyarm is
transformed: driver not found
this problem from my compiler or my device friendlyarm??