Hardware Reference
In-Depth Information
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I was unable to get the flip options to work on Linux raspberry pi 3.2.27+ #250.
It is possible that a newer version of the boot-loader
bootcode.bin
may be needed. But as
of 2014, this remains an issue.
Note
The 90º and 270º rotations require additional memory on the GPU, so these options
won't work with a 16 MB GPU split.
display_rotate
Description
0
0º (default)
1
90º
2
180º
3
270º
0x1000
Horizontal flip
0x2000
Vertical flip
While the flip options are documented, I was unable to get them to work. The
rotations, however, were confirmed as working.
Licensed Codecs
The following options permit you to configure the purchased license key codes for the
codecs they affect.
Option
Notes
decode_MPG2=0x12345678
License key for hardware MPEG-2 decoding
decode_WVC1=0x12345678
License key for hardware VC-1 decoding
Testing
The following test option enables image/sound tests during boot. This is intended for
manufacturer testing.
test_mode
Description
0
Disable test mode (default)
1
Enable test mode
