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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [HSW] linux next-20170407+ boots to a blank screen"
href="https://bugs.freedesktop.org/show_bug.cgi?id=100755#c18">Comment # 18</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [HSW] linux next-20170407+ boots to a blank screen"
href="https://bugs.freedesktop.org/show_bug.cgi?id=100755">bug 100755</a>
from <span class="vcard"><a class="email" href="mailto:jani.nikula@intel.com" title="Jani Nikula <jani.nikula@intel.com>"> <span class="fn">Jani Nikula</span></a>
</span></b>
<pre>(In reply to Jani Nikula from <a href="show_bug.cgi?id=100755#c13">comment #13</a>)
<span class="quote">> Rafael, please also try
>
> diff --git a/drivers/gpu/drm/i915/intel_display.c
> b/drivers/gpu/drm/i915/intel_display.c
> index 85b9e2f521a0..6d608e3df597 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -6288,7 +6288,7 @@ static void compute_m_n(unsigned int m, unsigned int n,
> }
>
> *ret_n = min_t(unsigned int, roundup_pow_of_two(n), DATA_LINK_N_MAX);
> - *ret_m = div_u64((uint64_t) m * *ret_n, n);
> + *ret_m = DIV_ROUND_CLOSEST_ULL((uint64_t) m * *ret_n, n);
> intel_reduce_m_n_ratio(ret_m, ret_n);
> }</span >
I meant, try this *alone* on top of drm-next, without other patches.</pre>
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