regarding vcn

Alex Deucher alexdeucher at
Tue May 19 18:48:42 UTC 2020

On Tue, May 19, 2020 at 2:45 PM Javad Karabi <karabijavad at> wrote:
> for a rx 5600 xt graphics card, is VCN supposed to be set to disabled?
> if i understand correctly, 5600 is navi10, which has vcn
> but i currently see VCN: disabled
> $ sudo grep VCN /sys/kernel/debug/dri/1/amdgpu_pm_info
> VCN: Disabled

amdgpu_pm_info shows power information.  When the VCN block is not in
use, the driver disables it to save power.  If you read back the
amdgpu_pm_info while VCN is in use, it will show up as enabled.


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