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#1 2020-08-05 12:38:33

lucasrizzini
Member
From: Rio de Janeiro/Brazil
Registered: 2020-04-22
Posts: 17
Website

Can't watch internet or local videos of any kind when IOMMU is enabled

It starts to stuttering like hell. Audio & video totally out of sync. dmesg shows nothing.

kernel parameters -> intel_iommu=on iommu=pt.

Primary/Boot GPU -> Intel HD Graphics 4600

Secondary -> AMD RX 580

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#2 2020-08-05 12:46:39

lucasrizzini
Member
From: Rio de Janeiro/Brazil
Registered: 2020-04-22
Posts: 17
Website

Re: Can't watch internet or local videos of any kind when IOMMU is enabled

For future readers -> Solved removing "iommu=pt" parameter.

For those who want to understand what this kernel parameter do -> http://mails.dpdk.org/archives/dev/2014 … 07411.html

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#3 2020-08-10 12:41:04

linuxninja
Member
Registered: 2018-07-28
Posts: 5

Re: Can't watch internet or local videos of any kind when IOMMU is enabled

Strange... I had to ADD iommu=pt on my system to get video working properly.
Ryzen 5 3400G

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