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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - i915 intel_tv_detect time out with recent kernels: [drm_kms_helper] flip_done timed out"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106422#c15">Comment # 15</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - i915 intel_tv_detect time out with recent kernels: [drm_kms_helper] flip_done timed out"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106422">bug 106422</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 Zakhar from <a href="show_bug.cgi?id=106422#c14">comment #14</a>)
<span class="quote">> We have used this PC connected to a TV, but that was with a VGA cable,
> through the VGA-out socket, the TV having a VGA-In connetor. I am not sure
> whether that counts as "TV-Out" and is one of the tests I need to do for
> this workaround.</span >
This is not about VGA (regardless of whether it's connected to a TV), this is
about SVIDEO. It's also possible your board doesn't even have a TV-out, which
causes the timeout.
Come to think of it, please attach /sys/kernel/debug/dri/0/i915_vbt.
<span class="quote">> As for bisecting... do you have a pointer on documentation I could use to
> see the complexity of that? Sure the time-out appear somewhere between
> kernels 4.4 and 4.8, and that could be lower/upper bisection limits. Not
> sure though it is really practical starting bisecting with a remote
> machine!..</span >
<a href="https://wiki.ubuntu.com/Kernel/KernelBisection">https://wiki.ubuntu.com/Kernel/KernelBisection</a></pre>
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