[Bug 100023] [SKL] LSPCon and DisplayPort always output limited range RGB, even when it should output full range RGB

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=100023

--- Comment #21 from Michał Kopeć <mkopec12 at gmail.com> ---
Apologies, previous comment was submitted accidentally before I finished it.
Feel free to remove it.

This issue is affecting me as well. My setup is:
 - Lenovo ThinkPad T430 with HD 4000
 - HP LA2306x connected via DisplayPort on the laptop docking station
 - Arch Linux with kernel 4.17.3

DisplayPort output defaults to 16-235 color range, while any other outputs on
the laptop will correctly output 0-255 full RGB. There is currently no way to
set the driver to default to Full RGB regardless of what the display EDID is.

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