[Bug 95392] Trying to set mode 3840x2160 at 60 Hz results in a crash

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=95392

--- Comment #3 from Ville Syrjala <ville.syrjala at linux.intel.com> ---
[   12.914535] [drm:intel_update_cdclk] Current CD clock rate: 450000 kHz
[   91.861529] [drm:intel_dump_crtc_timings] crtc timings: 533280 3840 3848
3992 4000 2160 2214 2219 2222, type: 0x0 flags: 0x9

Your cdclk is too low for that mode. I have a branch which has the required
bits to adjust cdclk dynamically on SKL:
git://github.com/vsyrjala/linux.git skl_bxt_cdclk_part_2

Can you test with that branch?

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