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3a7963a061
There appears to be a requirement for some devices (I'm testing with a 8K VRROOM 40Gbps HDMI switch) for a measable delay between removing the hdmi phy output from the old mode, to enabling the hdmi phy output for the new mode. Without the delay, a mode switch has a small change of getting a permanent 'no signal', which requires a subsequent mode switch or a unplug/replug to redetect. Switching between 4kp24/25/30 modes fails about 5% of time in my testing. Add a delay to make it impossible to switch faster than this. Signed-off-by: Dom Cobley <popcornmix@gmail.com>
Linux kernel
There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first.
In order to build the documentation, use make htmldocs or
make pdfdocs. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.
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