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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [HSW ULT GT3 DP] Blank screen at 3840x2160 resolution (both framebuffer and Xorg)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=86377#c14">Comment # 14</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [HSW ULT GT3 DP] Blank screen at 3840x2160 resolution (both framebuffer and Xorg)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=86377">bug 86377</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>[ 26.597300] [drm:intel_ddi_pll_init] CDCLK running at 450000KHz
3840x2160 (0x46) 533.250MHz +HSync -VSync *current +preferred
533 > 450, so this is never going to work. So like <a class="bz_bug_link
bz_status_NEW "
title="NEW - [IVB DP] FIFO underrun when trying to set a high display mode"
href="show_bug.cgi?id=85621">bug 85621</a>, we're going to
need to grow these max cdclk checks and filter out such modes.</pre>
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