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Can I get your laptop or mb make and model?<br>
I spent years perfecting the use of an Optimus (nvidia / intel)
laptop to do gpuu passthrough.<br>
Maybe I can help.<br>
I contribute to a how to here:<br>
<a class="moz-txt-link-freetext" href="https://forums.linuxmint.com/viewtopic.php?t=212692">https://forums.linuxmint.com/viewtopic.php?t=212692</a><br>
<br>
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<div class="moz-cite-prefix">On 6/28/20 11:38 PM, Jeff Tchang wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAG+zT3pMorMUShOYuY=hMQe3seQzUqN+Ds8h7vaDzxHdxE+H7g@mail.gmail.com">
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<div dir="ltr">Posted this on a Proxmox forum as well but wanted
to see if anyone had any ideas on getting an Intel 520
integrated GPU (Skylake) working. For reference these are NUC
6i3.
<div><br>
</div>
<div>The issue I am seeing is that upon starting the VM with PCI
passthrough enabled the screen blanks and just goes dark.</div>
<div><br>
</div>
<div>I am seeing dmesg lines:</div>
<div><br>
</div>
<div>
<p class="gmail-p1"
style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(180,36,25)"><span
class="gmail-s1"
style="font-variant-ligatures:no-common-ligatures;color:rgb(47,180,29)">[<span
class="gmail-Apple-converted-space"> </span>202.990645]
</span><span class="gmail-s2"
style="font-variant-ligatures:no-common-ligatures;color:rgb(159,160,28)">DMAR</span><span
class="gmail-s3"
style="font-variant-ligatures:no-common-ligatures">: DRHD:
handling fault status reg 2</span></p>
<p class="gmail-p1"
style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(180,36,25)"><span
class="gmail-s1"
style="font-variant-ligatures:no-common-ligatures;color:rgb(47,180,29)">[<span
class="gmail-Apple-converted-space"> </span>202.990662]
</span><span class="gmail-s2"
style="font-variant-ligatures:no-common-ligatures;color:rgb(159,160,28)">DMAR</span><span
class="gmail-s3"
style="font-variant-ligatures:no-common-ligatures">: [DMA
Write] Request device [00:02.0] PASID ffffffff fault addr
0 [fault reason 02] Present bit in context entry is clear</span></p>
<p class="gmail-p2"
style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span
class="gmail-s1"
style="font-variant-ligatures:no-common-ligatures;color:rgb(47,180,29)">[<span
class="gmail-Apple-converted-space"> </span>203.384895]
</span><span class="gmail-s2"
style="font-variant-ligatures:no-common-ligatures;color:rgb(159,160,28)">vfio-pci
0000:00:02.0</span><span class="gmail-s3"
style="font-variant-ligatures:no-common-ligatures">:
vgaarb: changed VGA decodes:
olddecodes=io+mem,decodes=io+mem:owns=io+mem</span></p>
<p class="gmail-p2"
style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><br>
</p>
<div>More details available here: <a
href="https://gist.github.com/tachang/66d0db979aa6d9149a5a284e15b9bd74"
moz-do-not-send="true">https://gist.github.com/tachang/66d0db979aa6d9149a5a284e15b9bd74</a></div>
</div>
<div><br>
</div>
<div>I've seen one older thread which seems to apply to my
situation.</div>
<div><a
href="https://www.redhat.com/archives/vfio-users/2018-May/msg00008.html"
moz-do-not-send="true">https://www.redhat.com/archives/vfio-users/2018-May/msg00008.html</a><br>
</div>
<div><br>
</div>
<div>To continue I don't see anything useful in the libvirt
domain log (<a
href="https://gist.github.com/tachang/f5d6b10e8e1e7f7ac2a5bb1180f6c096"
moz-do-not-send="true">https://gist.github.com/tachang/f5d6b10e8e1e7f7ac2a5bb1180f6c096</a>)</div>
<div><br>
</div>
<div>-Jeff</div>
</div>
<br>
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</blockquote>
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