Arch Linux User Repository

• Leaving eclairvoyant's comment pinned because it contains some useful information.
• Patch policy is different, but similar.
  • Primary purpose of this package are the ACS override and i915 VGA arbiter patches.
  • Upstream Arch patches will be applied to maintain parity with the standard kernel.
  • No other patches will be added.
• Package does have options that can be changed, like building with clang or disabling Arch patches.
  • Defaults will match Arch packages, except when incompatible with this package's primary patches.
  • Options are subject to change. Read PKGBUILD for details.
• Avoid commenting and flagging at the same time for the same issue.
  • Flag for common issues with standard solutions, like new releases, key changes, etc.
  • Comment for issues requiring explanation or debugging.
    • Use a pastebin for blocks of text more than a few lines.

This package exists for the specific purpose of adding ported patches based on those originally created by Alex Williamson for:

• Bypassing the default IOMMU grouping by overriding PCIe ACS support, and

• Enabling VGA arbitration support on Intel iGPUs.

Arbitrary patches will not be added.

Refer to the wiki on PCI passthrough and this blog post on IOMMU groups for risks/caveats before using this package.

Regular AUR etiquette applies as well (knowledge of makepkg and searching the wiki/Arch forums is expected, and AUR helpers or Arch-based distros that are not Arch Linux are unsupported).

Someone should sticky the comment by (erylflynn commented on 2016-04-21 17:23 (edited on 2016-07-28 04:34 by erylflynn))

Installing this new kernel will break Xorg if you are using nvidia-dkms, but a re-install of nvidia-dkms fixes it.

Unfortunately there is no way to search the comments on here.

Sorry it took so long to reply, got busy with some other stuff.

I've done with and without AUR helpers. Pacaur seemed to work fine, without was a 70/30ish of it working or not. Over the course of some ten+ installs about 3 or 5 ended up working. Without doing anything different before the install.

Essentially, I have no idea what the problem is.

The -headers and -docs packages are not required to use the base package. The headers package are just that, headers for developers that need them. The docs package is also just that, documentation for the kernel and you don't need them to run the kernel.

If you are using an AUR helper, don't. They are not supported and I will not even entertain issues with packages built with them. Try building using makepkg alone and if that doesn't work, use a clean chroot (check the wiki).

If you really want to try a known good built package done in a clean chroot, you can try the package in my public repository. Again, check the wiki. I know for a fact that this PKGBUILD is known to work as I use it every day with no issue (and on an Nvidia card with the nouveau drivers).

When I install it asks if I want to install linux-vfio-headers and docs. They should be installed, but I don't even know. I'll go test that when I have time. If headers aren't installed that's likely the problem, if they are I'll get the version number. I'll also check dkms as you mentioned. And if anything doesn't really work, I'll try rebuilding it.

Only time I saw anything like this was when the kernel was built but the headers was not. I tried a new AUR tool and it only built the linux-vfio package, not linux-vfio-headers. Once I rebuilt everything making sure the headers installed it worked.

Check linux-vfio-headers installed version. Also "dkms status" to show if the module for your video drivers was built. If not force dkms to rebuild and see what happens.

I've searched as extensively as I could manage. Every time was a fresh install. With or without nvidia drivers. Blacklisting nouveau or nvidia, setting a default output card does nothing, binding the card with pci-stub and/or vfio-bind doesn't change anything. Different desktop managers changes nothing, reinstalling desktop managers and Xorg doesn't change anything. Haven't found anything special in the logs I've looked at or using dmesg(or whatever it's called, I can't recall). If there are any other drivers I need to worry about I don't know which ones they are.

Honestly I'm at my wits end, I'm far from a veteran but I'm at least a decently good user, but nothing special. Though searches on google and scouring wikis and forums I haven't found anything that solves it. I've found ones with similar problems to mine, but either with no solution or one that doesn't work for me.

Is there a way to log the installation process of linux-vfio? I've noticed some red text pop up here and there, but am not sure how to get my hands on it. Only thought of that during my writing of this. Usually, at the end, or close to it, there is usually a rather large red block of text, probably ten lines at the very least. I have no idea if these are errors or not, but if I can get my hands on that log it might help solving whatever problem is causing this. Whether that's a hardware issue or software I can't say.

MurkyDepths: Did you check the Wiki, the forums, Google?

I can tell you this kernel is working fine on at least my system. Check your drivers, check your logs, etc...

For some reason installing this now kills graphical boot and it’s stuck on a blackscreen with a blinking cursor. Non-graphical boot works fine though. Have you encountered this before? If so, do you know of a way to fix it?

Sorry, I'm like maybe day one on arch so I have little to no idea how AUR works properly. Though I'm learning, it doesn't stop me from being stupid.