So, something, while upgrading, changed the settings.

Is this an issue that can be modified or does the system set the settings so 
by itself ?

On Thursday 23 January 2020 19:42:25 Dr. Nikolaus Klepp wrote:
> Anno domini 2020 Thu, 23 Jan 19:10:56 +0100
>
>  mb850063@... scripsit:
> > Herewith attached the requested file, while working within the TDE
> >
> > On Thursday 23 January 2020 18:53:29 Dr. Nikolaus Klepp wrote:
> > > Anno domini 2020 Thu, 23 Jan 18:41:49 +0100
> > >
> > >  mb850063@... scripsit:
> > > > Hello !
> > > >
> > > > Under debian buster, i updated and upgraded last week, meanothers
> > > > TDE.
> > > >
> > > > As from then, everything related with Xwindows has become extremely
> > > > slow.
> > > >
> > > > Before that, as from tdm to everything within the TDE display/desktop
> > > > screen/environment worked perfectly.
> > > >
> > > > video is AT RV370 X300 / X300SE
> > >
> > > What does you /var/log/Xorg.0.log say?
>
> Hm ...
>
> [    68.233] (==) RADEON(0): DRI3 disabled
> [    68.233] (==) RADEON(0): Backing store enabled
> [    68.233] (WW) RADEON(0): Direct rendering disabled
> [    68.233] (II) RADEON(0): Acceleration disabled
>
> > > > BRgds
> > > >
> > > > JB
> > > >
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