Ask Your Question

Post-Upgrade issues Fedora 24: Cannot open applications after login, 100% CPU

asked 2016-07-14 03:50:45 -0500

fab671 gravatar image

updated 2016-07-14 12:29:59 -0500

After Upgrade from F23 via dnf system-upgrade, my computer boots fine to the login screen. But after logging into any desktop environment (GNOME, Gnome on Wayland, Cinnamon, Xfce) and starting an application (like Settings, Nautilus ...) the CPU-load of it is 100% and my whole session totally freezes. Most often the application windows is not even displayed on the screen. I also noticed, that after login my files on the desktop do not appear. Sometimes, the background image is not shown but instead it's just white.

My mouse can be moved all the time. Sometimes after starting an application, I can just see the boundaries of the window and "mutter-dialog" in the title. Not 100% sure, but I think I also noticed some minor scaling issues.

I can log into a terminal session and basically do everything - just the desktop environment does not work anymore.

I don't think gnome-shell crashes, because I am not having any problems when just showing the app drawer, or clicking on the notification header.

After inspecting the Xorg logs, i found that the intel graphics driver is successfully loaded and a display is recognized. I also could not find any hints in the logs from gnome-shell. Kernel log seems fine, too.

Switching to one of the previous install kernels does not change anything.

I am using a Lenovo Thinkpad X1 Carbon 3rd with HidPi display and, when i did the system-upgrade, I had an external monitor connected via the docking station (maybe this is relevant to the issue).

I also tried reinstalling gnome-shell, removing all shell-extentions, and logging into a newly created user account.

Anybody a hint?




journalctl -b


edit retag flag offensive close merge delete


Try opening a terminal and running top as that will tell you what program or programs are using the most CPU. Once we know what's eating up your computing power we can begin to work on correcting it.

sideburns gravatar imagesideburns ( 2016-07-14 16:36:53 -0500 )edit

2 Answers

Sort by ยป oldest newest most voted

answered 2016-07-14 07:49:15 -0500

updated 2016-07-14 12:43:47 -0500

I have the same issue after I did dnf update yesterday. Games/videos hit 100% 4 core CPU and performance is degraded 1-4 FPS max.

But after upgrade 23-24 everything worked fine for a week.

I fixed it by reinstalling NVidia drivers / xorg config. After some time I came to conclusion that everything was rendered by CPU - explains 100% load.

edit flag offensive delete link more


I tried reinstalling xorg-x11* packages and downgrading intel graphics, it did not help.

fab671 gravatar imagefab671 ( 2016-07-14 13:05:10 -0500 )edit

answered 2016-07-14 10:45:01 -0500

genodeftest gravatar image

Can you try logging into a tty as root and run dnf upgrade, confirming to upgrade and reboot? Does that help?

Your login screen works fine, right? Have you tried the hear menu on the login screen choosing another session? You might have chosen wayland, which is not ready on every machine yet.

Can you read journalctl -b? If yes, can you please post some of that to e.g. You might be able to attach an usb flash drive, mount it manually and then copy a file to it.

edit flag offensive delete link more


i tried GNOME, Xfce, Cinnamon and GNOME on Wayland....problem seems to be independent from the desktop environment. and the whole session seems buggy, it's not only the 100% cpu and that apps don't start. will post logs.

fab671 gravatar imagefab671 ( 2016-07-14 11:45:49 -0500 )edit

Question Tools


Asked: 2016-07-14 03:50:45 -0500

Seen: 597 times

Last updated: Jul 14 '16