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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [bdw-u iommu] DMAR error -> GPU hang"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89360#c112">Comment # 112</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [bdw-u iommu] DMAR error -> GPU hang"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89360">bug 89360</a>
from <span class="vcard"><a class="email" href="mailto:corsac@debian.org" title="Yves-Alexis <corsac@debian.org>"> <span class="fn">Yves-Alexis</span></a>
</span></b>
<pre>(In reply to miguelramos from <a href="show_bug.cgi?id=89360#c102">comment #102</a>)
<span class="quote">> I can confirm that the problem still affects Intel Broadwell 5500 (gen 8)
> that needs the workaround in kernel 4.19.2 using gentoo-sources and
> vanilla-sources in Gentoo Linux to start "gdm" without suffering a Intel GPU
> hang.
>
> dmesg clearly shows that the problem with DMAR hangs the Intel GPU.</span >
So I tried removing igfx_off in (Debian) 4.19 kernel (BDW) and it sure still
doesn't work. It might be a different bug than before but I still have to use
that option.</pre>
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