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udevd[1827]: specified group 'render' unknown

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n05ph3r42
Tux's lil' helper

Tux's lil' helper

Joined: 11 Jul 2016
Posts: 134

Posted: Sun Oct 14, 2018 6:17 pm Post subject: udevd[1827]: specified group 'render' unknown

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Also got next messages:

Code:

udevd: ignoring invalid mode '@GROUP_RENDER_MODE@
udevd: ignoring invalid mode '@DEV_KVM_MODE@'

not sure is it critical, but dmesg beauty ruined

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Ant P.
Watchman

Watchman

Joined: 18 Apr 2009
Posts: 6920

Posted: Sun Oct 14, 2018 7:27 pm Post subject:

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eudev installs a broken file. It's a bit more than cosmetic, it causes things like vaapi to not work.

Until the next update comes out you can fix it manually; open /lib/udev/rules.d/50-udev-default.rules and change line 39-40 to this:

Code:

SUBSYSTEM=="drm", KERNEL=="renderD*", GROUP="video", MODE="0666"
SUBSYSTEM=="kfd", GROUP="video", MODE="0666"

And line 82 to this:

Code:

KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"

(IMO these should be 0660, world-writable is questionably secure, but that's what upstream did...)

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