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Re: Startx works, but sddm/lightdm/xdm doesn't

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John Goerzen composed on 2022-02-28 22:11 (UTC-0600):

> Interestingly, purging xserver-xorg-video-nouveau didn't change
> anything. 

That means you must have been /using/ the modesetting DIX driver.

> However, removing modesetting_drv.so from
> /usr/lib/xorg/modules/drivers did.  That solved the problem.

> But it didn't switch to nouveau; it went to fbdev.

You likely created a new problem. modesetting_drv.so is the default DIX for AMD,
Intel and NVidia GPUs. fbdev is unaccelerated, and won't support most common
widescreen display modes. Some apps won't run on it. I don't think Gnome will even
start using it. Using fbdev you can expect your PC to feel like it's running a
single core at 233MHz instead of 2000MHz or more on multiple cores.

I don't know that I've ever migrated an installation using SDDM to another PC
using a majorly different GPU. I use TDM or KDM3 on most installations, with a
rare few on LightDM or SDDM, whose themes I always have extreme negative
appreciation for.
-- 
Evolution as taught in public schools is, like religion,
	based on faith, not based on science.

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata

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Thread

Startx works, but sddm/lightdm/xdm doesn't John Goerzen <jgoerzen@complete.org> - 2022-02-28 22:50 +0100
  Re: Startx works, but sddm/lightdm/xdm doesn't Felix Miata <mrmazda@earthlink.net> - 2022-03-01 01:00 +0100
    Re: Startx works, but sddm/lightdm/xdm doesn't John Goerzen <jgoerzen@complete.org> - 2022-03-01 05:20 +0100
      Re: Startx works, but sddm/lightdm/xdm doesn't Felix Miata <mrmazda@earthlink.net> - 2022-03-01 05:50 +0100
        Re: Startx works, but sddm/lightdm/xdm doesn't John Goerzen <jgoerzen@complete.org> - 2022-03-01 06:30 +0100
  Re: Startx works, but sddm/lightdm/xdm doesn't Nicholas Geovanis <nickgeovanis@gmail.com> - 2022-03-01 02:00 +0100
  Re: Startx works, but sddm/lightdm/xdm doesn't Anssi Saari <as@sci.fi> - 2022-03-01 14:50 +0100

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