DisplayLink Forum - Disable IOMMU support for DisplayLink driver

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- - Disable IOMMU support for DisplayLink driver (https://displaylink.org/forum/showthread.php?t=66639)

geostar1024

05-31-2019 10:41 PM

Disable IOMMU support for DisplayLink driver

Having IOMMU on causes the DisplayLink driver to malfunction (turning it off allows all connected adapters to function normally). This is a simple request to disable IOMMU support in the driver so that linux systems that use virtualization can still use DisplayLink adapters on the host.

mlukaszek

06-13-2019 07:12 PM

Hi,

A pull request that should address this has recently been merged into the devel branch of evdi project.

https://github.com/DisplayLink/evdi/...a57ba3042b930f

Cheers,
Michal

rharrison

07-06-2019 02:36 PM

I don't think the commit is working. I build the driver from the devel branch and still had to disable iommu to get anything to work.

rharrison

07-22-2019 04:06 PM

The latest release of the driver does seem to be working. Perhaps there was an issue with the way I built from the devel branch.

geostar1024

02-01-2020 06:23 PM

Quote:

Originally Posted by mlukaszek (Post 88112)

Hi,

A pull request that should address this has recently been merged into the devel branch of evdi project.

https://github.com/DisplayLink/evdi/...a57ba3042b930f

Cheers,
Michal

Many thanks! 5.2.14 is playing very nicely with my IOMMU setup.

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