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Date: Mon, 22 Mar 2021 14:30:47 +0100
From: Konstantin Lepikhov <lakostis@altlinux.org>
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On 03/22/2021, at 01:26:06 PM you wrote:

> Hi alexei!
> 
> On 03/22/2021, at 07:40:48 PM you wrote:
> 
> <skip>
> > > поддерживает ли glxinfo у альтов этот параметр).
> > 
> > $ lspci -nn | grep VGA
> > 81:00.0 VGA compatible controller [0300]: NVIDIA Corporation TU116 [GeForce GTX 1660 SUPER] [10de:21c4] (rev a1)
> > 
> > $ glxinfo -B
> > name of display: :0
> > display: :0  screen: 0
> > direct rendering: Yes
> > Extended renderer info (GLX_MESA_query_renderer):
> >     Vendor: Mesa/X.org (0xffffffff)
> >     Device: llvmpipe (LLVM 11.0.1, 256 bits) (0xffffffff)
> >     Version: 21.0.0
> >     Accelerated: no
> >     Video memory: 64340MB
> >     Unified memory: no
> >     Preferred profile: core (0x1)
> >     Max core profile version: 4.5
> >     Max compat profile version: 3.1
> >     Max GLES1 profile version: 1.1
> >     Max GLES[23] profile version: 3.2
> > OpenGL vendor string: Mesa/X.org
> > OpenGL renderer string: llvmpipe (LLVM 11.0.1, 256 bits)
> Вот это говорит, что у вас нет аппаратного ускорения (llvmpipe это
> fallback). Разбирайтесь, почему вас так.
> 
> Помочь ничем не могу, у меня своя Mesa и nvidia_glx и они работают )
> 
https://github.com/sddm/sddm/issues/323

- тут пишут, можно еще так сделать, чтобы qt не пыталось использовать 3d:

echo 'QT_QUICK_BACKEND DEFAULT=software' >> /etc/security/pam_env.conf

-- 
WBR et al.