[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

N. W. <nw9165-3201 at yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |NEW
           Priority|high                        |highest
           Severity|major                       |blocker

--- Comment #32 from N. W. <nw9165-3201 at yahoo.com> ---
(In reply to Jani Nikula from comment #29)
> Shashank's patch series [1] on top of drm-tip might fix the color range
> issue on LSPCON. As I wrote in the commit message of the patch [2] that
> fixes bug 107476, I'm guessing the LSPCON fails to turn the CEA range MSA
> into proper AVI infoframes. Turns out there's a way to manually override the
> infoframes the LSPCON produces, and this is what Shashank's patches do,
> although originally aimed at adding YCbCr support. Please test.

No offense, but why are you guessing on your patches and asking customers to
test instead of testing yourself?


(In reply to Lakshmi from comment #31)
> Reporter, can you apply below patch on drm-tip to ensure that issue is
> resolved?
> https://patchwork.freedesktop.org/series/36068/

Developer, unless it is merged into the mainline kernel it will be difficult to
test. Not all users compile kernels themselves.

No offense, but judging from your email address, you seem to be working for
Intel and working on graphics products. Don't you have a PC with LSPCon output
and monitor with DVI-D input in your office/lab to test it yourself? Just
saying.

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