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Bug 788098 - Gnome-Shell FPS drop after ~23 seconds
Gnome-Shell FPS drop after ~23 seconds
Status: RESOLVED NOTGNOME
Product: gnome-shell
Classification: Core
Component: general
unspecified
Other Linux
: Normal normal
: ---
Assigned To: gnome-shell-maint
gnome-shell-maint
Depends on:
Blocks:
 
 
Reported: 2017-09-24 14:44 UTC by lei.pero
Modified: 2017-10-01 03:32 UTC
See Also:
GNOME target: ---
GNOME version: ---


Description lei.pero 2017-09-24 14:44:14 UTC 
Very strange "bug", no matter what is system doing, every time after approximately 23 seconds since enter is pressed on GDM login screen, something gets loaded into gnome shell and drop FPS to 20 and make whole experience laggy.

Tested:
-with or without extensions
-with or without loads of applications at autostart
-with or without all options in tracker disabled
-with power saving features disabled in UEFI
-on Gnome-Shell 3.24.2 and 3.26

I've pretty much tried killing all non-needed systemd services etc., even with tons of applications in autostart, same thing happens.

I'm pretty much out of idea, it only affects shell for some reason. Added demonstration video, for some reason screenshot not including GALLIUM_HUD, when recording it shows higher FPS than what actually is.

https://drive.google.com/open?id=0B_j0gO_cc4rXWDVDVkFnTmN6Mlk
Comment 1 lei.pero 2017-09-25 20:44:54 UTC 
I can't reproduce bug on 3.24.2 after reinstalling whole system, same configuration, so bug report could be closed for now, if bug re-appear in 3.26 it can be re-open. I assume samba configuration caused those problems, if not testing 3.26 version.
Comment 2 lei.pero 2017-10-01 03:32:31 UTC 
Not a GNOME bug, just in case someone faces this problem, what did caused it is PAMAC application, I've used it on Arch so that might be the problem, will report bug for Manjaro team.

Solution:
Do not install PAMAC, if needed, re-install whole system, since simple removal of PAMAC application did not help.