Question

2

How to debug slow session start of Gnome 3?

rated 0 times [ 2] [ 0] / answers: 1 / hits: 7892 / 3 Years ago, tue, august 24, 2021, 8:24:23

After Upgrade from 11.10 to 12.04, the login process of Gnome 3 is extremely slow (It takes in the order of 60 seconds when it was in the order of a few seconds before the upgrade (Harddisk is a SSD!)).

Running "top" in a VT shows that gnome-shell is producing about 90% CPU load while dbus-daemon is taking roughly 10%. The moment when CPU-load of gnome-shell drops to normal levels (around 2-3%) corresponds to the time the login process is terminated and the desktop is displayed.

De-activating the four gnome-shell extensions (Alternative Status Menu, Quit Button, Remove Accessibility, system-monitor) that I have installed does not have any effect on session start up time.

Login to Gnome classic does not show the slow session start.

The system logs do not show anything suspicious. Thus, what is the best way to identify the underlying problem?

Answers

Only authorized users can answer the question. Please sign in first, or register a free account.

llianconclad

Add To Favorites

Follow

Total Points: 65

Total Questions: 109

Total Answers: 127

Location: Mali

Member since Fri, Dec 3, 2021

2 Years ago

llianconclad questions

1 Problem with software updating - package conflicts

Sun, May 1, 22, 08:47, 2 Years ago

1 Ubuntu 21.10 switched to nftables, so why is iptables still available?

Sun, Apr 3, 22, 22:27, 2 Years ago

1 kdeconnect-app fails to startup

Tue, Nov 8, 22, 02:33, 2 Years ago

1 How to install Sagemath on Ubuntu 20.04?

Mon, Aug 23, 21, 15:58, 3 Years ago

1 What does "Memory unclaimed" mean in lshw output?

Sun, Jul 25, 21, 18:19, 3 Years ago

View All

answered 3 Years ago wenceslockro · Accepted Answer

I had a similar problem, and pinned it down to the contacts system -- I did that by running strace -p on the gnome-shell process, and looking for the contents of the system calls.

I give my eventual solution in my blog entry here. Hope that helps!

--- /usr/share/gnome-shell/js/ui/overview-dist.js   2012-07-20 13:12:23.564769756 -0700

+++ /usr/share/gnome-shell/js/ui/overview.js    2012-07-20 16:40:14.076527986 -0700

@@ -210,7 +210,7 @@

         this.addSearchProvider(new AppDisplay.AppSearchProvider());

         this.addSearchProvider(new AppDisplay.SettingsSearchProvider());

         this.addSearchProvider(new PlaceDisplay.PlaceSearchProvider());

-        this.addSearchProvider(new ContactDisplay.ContactSearchProvider());

+        // this.addSearchProvider(new ContactDisplay.ContactSearchProvider());



         // Load remote search providers provided by applications

         RemoteSearch.loadRemoteSearchProviders(Lang.bind(this, this.addSearchProvider));