charleslam

I assumed that since the pro 3.1 card is not the same as the 3.0 card, that there would be its own problems. but it sounds like this has been documented and tested as working with unraid. Still, if i have learned one thing from this forum is things arent always as they appear. have you confirmed that the 3.1 pro card works with unraid? Often people just refer to the "Pro" card and there are 2 different cards we are talking about here. Thanks, Charles Lam

coming back here to rez an old thread. unfortunately the allegro pro is no longer being produced and i cant find it anywhere on ebay. has there been another method to getting USB's passed through correctly? or are there just no options for something like this?

thats disappointing

or start fresh on a temp usb just to rule out crazy config problems...

That was one of the cards i was curious about. are you able to pass through the slave and master controllers separately? or does it just only show as one usb controller?

This is why i really dont like the layout of having the option to assign USB devices without passing through the usb controller. certain devices dont work correctly when it is done. and then youre stuck guessing if something broke or not. I believe other people in here have had the same problems with xbox controllers/receivers. typically the worst is when they try adding multiple xbox controllers/receivers iirc. passing through a controller is a pita as shown, but once you do it, its worth it. makes everything a whole lot easier.

yeah those really didnt work either.

rob from another post states: " So I guess the best advice is to keep looking for updates to firmware, BIOS, and Linux kernel (the kernel core itself as well as the virtualization support, especially IOMMU, and the included drivers). Some workarounds that are generally suggested, with possibly undesirable side-effects (choose only one!) - - iommu=pt - iommu=pt r8169.use_dac=1 - intel_iommu=pt - intel_iommu=igfx_off - iommu=off - intel_iommu=off - replace problem hardware - disable virtualization support in BIOS " i tried the iommu=pt just by itself, and my intel usb controller started working. but i wonder if the - iommu=pt r8169.use_dac=1 will do a more thorough job.

im running into the issue that when upon first boot, i will have to unplug and plug back into the same controller, usb devices work fine. reboot the VM and no amount of unplugging/plugging fixes.

testing now, because people suck. aaaaand finished testing. adding those lines into the config do not fix the problem with ASMedia usb controllers. maybe im adding the lines to the wrong part of the config? label unRAID OS menu default intel_iommu=on intel_iommu=pt intel_iommu=igfx_off kernel /bzimage but regardless this sucks for people with asmedia crap usb controllers.

im really surprised no one else has chimed in on this.

grr. ok. so people are saying that we need to have: A quick fix consists in replacing the boot kernel parameter ‘intel_iommu=on’ with ‘intel_iommu=pt’ “to set up pass through (PT) mode in context mapping entry”. DMAR is then disabled in the GNU/Linux kernel but KVM still benefits IOMMU and interrupt remapping. and ALSO: intel_iommu=igfx_off to not get the dma read error. havent gotten a chance to try it since im doing a rebuild on my array. Sources: https://centoros.wordpress.com/2015/07/22/iommu-dmar-fault/ https://bbs.archlinux.org/viewtopic.php?id=176398

so subscribing to this. I have been digging around myself. finding alot of cards that have master, and slave controllers on them. e.g. https://www.newegg.com/Product/Product.aspx?Item=9SIA1DS4NA7781 i wonder if pass through is possible with those types of configurations?

i have 3 usb controllers. got usb pass through working on the intel usb controller. the 2 asmedia usb controllers refuse to pass through and give this error. fun.

I can relate to the anger. im having a tough time myself. usb headsets do not play well either with unraid.