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From: Nikos Chantziaras <realnc@gmail.com>
Subject: [gentoo-user] Re: nvidia x server settings doesn't open
Date: Sat, 28 Nov 2020 16:19:51 +0200
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References: <82244110-9bba-128c-2de7-442bc9ec2fdc@sys-concept.com>
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On 27/11/2020 02:56, thelma@sys-concept.com wrote:
> I just installed nvidia-drivers-455.28-r1 and can not start "nvidia x
> server setting" it doesn't open.
> 
> running: $ nvidia-smi
> NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA
> driver. Make sure that the latest NVIDIA driver is installed and running.

What's the output of:

   lsmod

and:

   emerge --info