[SOLVED] Performance issues until I restart display-manager

windows refugee · 2021-06-28 06:23:49

I'm still new to arch and trying my best to learn, but i'm clueless on why this is happening. I installed arch earlier with no problems, and then xorg, i3, and lightdm all with just the default configs. Everything works but performance is pretty slow, if I try to open a game it runs at around 2fps. If I run "sudo systemctl restart display-manager" everything is fixed and performance is good again, but the issue comes back any time I reboot. Sorry for the lack of details but I'm not really sure where to start with this one.

My only guess is something is wrong with a startup script somewhere, but ~/.xprofile and /etc/xprofile don't exist. ~/.xinitrc doesn't exist either. Not sure where else to look. Thanks in advance.

Last edited by windows refugee (2021-06-28 08:05:24)

seth · 2021-06-28 06:27:30

Post the xorg logs from the slow and the fast session.
I assume you're running into the common race condition, the GPU isn't ready when X11 starts and you end w/ te VESA driver.

windows refugee · 2021-06-28 06:41:50

seth wrote:

Post the xorg logs from the slow and the fast session.
I assume you're running into the common race condition, the GPU isn't ready when X11 starts and you end w/ te VESA driver.

The slow one: https://pastebin.com/HAtuR1yi
After restarting display-manager: https://pastebin.com/8Pzg2Zvi

seth · 2021-06-28 06:55:30

Well, close enough… ;-)

[     2.784] (EE) NVIDIA: Failed to load module "glxserver_nvidia" (module does not exist, 0)
[     2.784] (EE) NVIDIA(0): Failed to initialize the GLX module; please check in your X
[     2.784] (EE) NVIDIA(0):     log file that the GLX module has been loaded in your X
[     2.784] (EE) NVIDIA(0):     server, and that the module is the NVIDIA GLX module.  If
[     2.784] (EE) NVIDIA(0):     you continue to encounter problems, Please try
[     2.784] (EE) NVIDIA(0):     reinstalling the NVIDIA driver.

https://wiki.archlinux.org/title/NVIDIA … de_setting
Add the parameter AND the kernel modules.

On a sidenote, /etc/X11/xorg.conf looks nvidia-settings generated. Remove that and arrange your outputs with a drop-in https://wiki.archlinux.org/title/Multih … _xorg.conf

windows refugee · 2021-06-28 08:03:57

seth wrote:

Well, close enough… ;-)
[     2.784] (EE) NVIDIA: Failed to load module "glxserver_nvidia" (module does not exist, 0)
[     2.784] (EE) NVIDIA(0): Failed to initialize the GLX module; please check in your X
[     2.784] (EE) NVIDIA(0):     log file that the GLX module has been loaded in your X
[     2.784] (EE) NVIDIA(0):     server, and that the module is the NVIDIA GLX module.  If
[     2.784] (EE) NVIDIA(0):     you continue to encounter problems, Please try
[     2.784] (EE) NVIDIA(0):     reinstalling the NVIDIA driver.
https://wiki.archlinux.org/title/NVIDIA … de_setting
Add the parameter AND the kernel modules.
On a sidenote, /etc/X11/xorg.conf looks nvidia-settings generated. Remove that and arrange your outputs with a drop-in https://wiki.archlinux.org/title/Multih … _xorg.conf

Thank you, I did all this and it's fixed now. It seems that specifically the nvidia-settings config was causing my problem though. Why does restarting the display manager make it run well? I would still rather use nvidia-settings if there's a way.

seth · 2021-06-28 11:47:39

It seems that specifically the nvidia-settings config was causing my problem though.

No.

Why does restarting the display manager make it run well?

The nvidia-drm driver match condition isn't met, hence the xorg configlet in /usr/share doesn't extend the modulepath, hence you don't load the nvidia glx module and hence you render in software on the CPU.

I would still rather use nvidia-settings if there's a way.

For what?
The static xorg server layout it generates when using it to write an xorg.conf is inflexible and full of garbage on top - there's no way to use that to produce a sane server configuration and the general approach is to rely on the HW autodetection and only augment it w/ elements you want to adjust. nvidia-settings, nvidia-xconfig and Xorg -configure all cannot provide that.

Arch Linux

#1 2021-06-28 06:23:49

[SOLVED] Performance issues until I restart display-manager

#2 2021-06-28 06:27:30

Re: [SOLVED] Performance issues until I restart display-manager

#3 2021-06-28 06:41:50

Re: [SOLVED] Performance issues until I restart display-manager

#4 2021-06-28 06:55:30

Re: [SOLVED] Performance issues until I restart display-manager

#5 2021-06-28 08:03:57

Re: [SOLVED] Performance issues until I restart display-manager

#6 2021-06-28 11:47:39

Re: [SOLVED] Performance issues until I restart display-manager

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