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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - HP ZBook 15 nouveau driver hangup for kernel >= 4.1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90626#c24">Comment # 24</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - HP ZBook 15 nouveau driver hangup for kernel >= 4.1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90626">bug 90626</a>
from <span class="vcard"><a class="email" href="mailto:imirkin@alum.mit.edu" title="Ilia Mirkin <imirkin@alum.mit.edu>"> <span class="fn">Ilia Mirkin</span></a>
</span></b>
<pre>Looks like this bios hard-codes a 4K return size for each bios chunk fetch.
There is a "fast" and a "slow" method in nouveau... the fast one grabs it all
in one go, while the "slow" one does it 4K at a time.
In drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c, try commenting out the
line
{ 0, &nvbios_acpi_fast },
For some reason we're not detecting that it's fetching a bad bios...</pre>
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