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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Trying to set mode 3840x2160 at 60 Hz results in a crash"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95392#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Trying to set mode 3840x2160 at 60 Hz results in a crash"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95392">bug 95392</a>
from <span class="vcard"><a class="email" href="mailto:ville.syrjala@linux.intel.com" title="Ville Syrjala <ville.syrjala@linux.intel.com>"> <span class="fn">Ville Syrjala</span></a>
</span></b>
<pre>(In reply to Jani Nikula from <a href="show_bug.cgi?id=95392#c4">comment #4</a>)
<span class="quote">> (In reply to Ville Syrjala from <a href="show_bug.cgi?id=95392#c3">comment #3</a>)
> > [ 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.
>
> Why didn't we reject the mode?</span >
The current upstream SKL cdclk code is bad. It sets the max cdclk to something
!= current cdclk even though we don't actually support changing the frequency.</pre>
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