[Bug 101026] RX 550 HDMI 4k 60fps not working, DisplayPort is.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101026

--- Comment #7 from dwagner <jb5sgc1n.nya at 20mm.eu> ---
(In reply to Alex Deucher from comment #6)
> (In reply to dwagner from comment #5)
> > [   133.973] (--) AMDGPU(0): HDMI max TMDS frequency 300000KHz
> 
> The message is from the xserver, not the driver.  It's warning you because
> the clock for the mode exceeds the max TMDS clock as stated by the EDID.

Hmmm - when I "cat /usr/lib/firmware/edid/LG_EG9609_edid.bin | parse-edid", the
output contains:

  # Maximum pixel clock is 600MHz

Does the xserver have its own, flawed EDID parser?

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