I need help regarding vfio rpm-ostree kargs --append-if-missing="vfio-pci.ids=xxxx:yyyy,xxxx:yyzz"'

I need help regarding vfio

rpm-ostree kargs --append-if-missing="vfio-pci.ids=xxxx:yyyy,xxxx:yyzz"'

How do i disable? After running it or change to my 2nd gpu

Dark Flame MasterOP•11/30/23, 2:26 PM

Do i rerun the command?

Zelaf•11/30/23, 2:30 PM

Welp, just updated Bazzite deck and now my keyboard and mouse won't work

Zelaf•11/30/23, 2:53 PM

Ohh! Fixed it! My deck bios changed the USB mode back to DRD for some reason

DDark Flame Master I need help regarding vfio rpm-ostree kargs --append-if-missing="vfio-pci.ids=x...

HikariKnight•11/30/23, 3:55 PM

you just press E in the grub menu and remove the

vfio-pci.id=xxxx:yyyy

vfio-pci.id=xxxx:yyyy

part

Dark Flame MasterOP•11/30/23, 3:56 PM

Thank you.

DDark Flame Master Thank you.

HikariKnight•11/30/23, 3:56 PM

it will be a 1 time boot without the passthrough

HikariKnight•11/30/23, 3:57 PM

to modify it you will need to to change it with i think

rpm-ostree kargs --replace=vfio-pci.id=OLDVALUES=NEWVALUES

rpm-ostree kargs --replace=vfio-pci.id=OLDVALUES=NEWVALUES

HikariKnight•11/30/23, 3:57 PM

you can verify if they changed correctly with

rpm-ostree kargs

rpm-ostree kargs

Dark Flame MasterOP•11/30/23, 3:58 PM

I see thank you for the help

HikariKnight•11/30/23, 3:58 PM

the replace command is exact though

HikariKnight•11/30/23, 3:58 PM

so you need to use the exact order of the values for the OLDVALUES

Dark Flame MasterOP•11/30/23, 3:58 PM

Im still trying to figure out hook where i can change my main gpu back and forth

HikariKnight•11/30/23, 3:59 PM

yeah thats more complex to do properly, hence why we only make it easy to dedicate a gpu for passthrough

matt_schwartz•11/30/23, 3:59 PM

https://lkml.org/lkml/2023/11/26/264 there’s an updated sleep patch for the ROG Ally from Luke, just in case you weren’t aware of this for the fsync Ally version.

HikariKnight•11/30/23, 4:00 PM

since there is like a billion things that can go wrong with hotswapping the card to and from the host and VM

HikariKnight•11/30/23, 4:00 PM

so if people want to chase that, we leave that up to the user

Dark Flame MasterOP•11/30/23, 4:01 PM

But can it actually hard my hardware? Or only software side?

HikariKnight•11/30/23, 4:01 PM

also hi i am the person that wrote vfio stuff in bazzite

if you do have any vfio questions just shoot them my way

HikariKnight•11/30/23, 4:01 PM

what you mean hard your hardware?

Dark Flame MasterOP•11/30/23, 4:01 PM

Harm*

HikariKnight•11/30/23, 4:02 PM

not the way we did it.
only way it can potentially harm it is if you passthrough a gpu that pulls with it other things from your system like lets say some important sensors because it shares IOMMU groups with it (without crashing the host)

HikariKnight•11/30/23, 4:03 PM

this is why using something like ls-iommu to check the iommu groups is super important

Dark Flame MasterOP•11/30/23, 4:03 PM

I will keep that in mind.

HikariKnight•11/30/23, 4:03 PM

at best if you do it wrong the host freezes/crashes

HikariKnight•11/30/23, 4:04 PM

at worst you pull in something essential for host stability into the VM and the host has no idea something is wrong if something does become wrong

HikariKnight•11/30/23, 4:05 PM

i maintain this which is a bit better version of the bash version of ls-iommu
https://github.com/HikariKnight/ls-iommu

it has some switches to easily grab only what youre looking for

GitHub

GitHub - HikariKnight/ls-iommu: A tool to list devices in iommu gro...

A tool to list devices in iommu groups, useful for setting up VFIO - GitHub - HikariKnight/ls-iommu: A tool to list devices in iommu groups, useful for setting up VFIO

HikariKnight•11/30/23, 4:06 PM

anyways i will be heading out now, should be back in about 1 hour or 1 hour 30 mins or so

Dark Flame MasterOP•11/30/23, 4:06 PM

DDark Flame Master I will keep that in mind.

HikariKnight•11/30/23, 4:09 PM

the chances of something getting damaged is low though, in most cases the host just freezes or crashes, but i will not rule out the possibility of a system where the user ignores that the gpu shares a group with something important and it "works" but pulls in said hardware without crashing the system then causing an issue further down the line

in short, if something doesnt look right, ask and dont do it unless you are willing to experiment and find out (most of the stuff that could get pulled in with the gpu is motherboard only stuff anyway).

Indigo•11/30/23, 5:32 PM

https://github.com/ublue-os/bazzite/issues/593 Where is the right place to put a persistent warning about/solution for this & the XHCI USB issue? Like either on the website or somewhere in the UX.

GitHub

[[CRITICAL]] Bazzite Deck Goes to Black Screen on Boot · Issue #593...

As per title, steam deck is booting to black screen. This is a continuation of a prior issue. The proposed solution was to run rpm-ostree upgrade I did so at the time however at this time it is aga...

Indigo•11/30/23, 5:35 PM

TBH it feels like it perhaps ought to have been a release blocker / build recall since we tell people to use a physical keyboard to install and send people to game mode on startup. Also the fix to the black screen issue seems to require keyboard access