After upgrading to 3.0.1 and KF 5.6.0, konsole frequently eats 100% CPU usage after closing it. Even closing all konsole windows does not remedy this issue, but a `killall konsole` does. I'm using the latest nvidia driver (346.35) on 64-bit arch with kwin and compositing enabled. VSync is enabled. I'm using a dual-monitor setup. Attaching gdb to the process and randomly backtracing it shows that almost all the time is spent in _nv014tls () from /usr/lib/libnvidia-tls.so.346.35. I do not have konsole compiled with debug information, so I don't know where exactly this function is called from, but if that would help, I could recompile konsole with debuginfo. Reproducible: Always Steps to Reproduce: 1. Start konsole 2. Close konsole 3. Watch CPU usage spike to 100% (doesn't happen every time, but after 4-5 times it almost always happens)
I am also suffering from the same problem (also nvidia GPU and a dual-monitor setup). Quitting a konsole window leaves the process running with 100% cpu usage. Arch Linux packages: KDE Frameworks 5.7.0 Konsole: 3.0.1
Created attachment 91908 [details] konsole uses 100% CPU (xterm) konsole uses 100% CPU (xterm) after closing konsole's window
My PC|OS parameters: Arch Linux 64 bit with latest updates 3.19.2-1-ARCH #1 SMP PREEMPT Wed Mar 18 16:21:02 CET 2015 x86_64 GNU/Linux Konsole 3.0.1 KDE Frameworks 5.8.0 NVidia 9800GT with proprietary drivers (nvidia-340xx 340.76-6) AMD Phenom 810 X4 CPU 8 GB RAM
I can confirm this. It seems to happen not so often, when the konsole is closed with "exit" But sometimes, even then, zombie processes are there
Appears to be a duplicate of this here: https://bugs.kde.org/show_bug.cgi?id=343803
This bug still happens for Konsole 15.04.0
Same here on Kubuntu 15.04 with Konsole 3.0.1, KDE Frameworks 5.9.0 and NVIDIA Driver 340.76 (all from Kubuntu repos). I've even tried upgrading to Plasma 5.3 beta (from Kubuntu PPA) and the problem persists.
Same here on Kubuntu 15.04 with Konsole 4.14 with KDE Frameworks 5.9.0. But often, even then, zombie processes are there. CPU usage spike to 100% and pc worked slowly.
Exactly same results as Jonathan Ringstad, Description above.
I have the same problem, but it's not limited to konsole – sometimes ksmserver hangs, too. This happen especially when logging out. So I gues it's nVidias fault.
I can confirm this bug: Arch Linux x64 konsole 15.04.3 KDE Frameworks 5.12.0 plasma-desktop 5.3.2 nvidia-340xx 340.76 dual-monitor setup
Sad. The same bug is in Kubuntu 15.10 beta1 and also persist in Kubuntu 15.04 with plasma 5.4 (Nvidia driver 346.72 with Nvidia GF - GT610)
I switched away from the nvidia drivers more than a week ago, and the problem has been gone ever since. It looks like the issue is either in the nvidia driver itself, or the codepath which triggers it is only active when the system uses the nvidia driver, and not with other OpenGL implementations.
If a konsole developer can confirm that there is a high likelyhood of the issue being on nvidias (rather than konsoles) side, I'd be happy to do the legwork of bringing this to the attention of the nvidia developers.
(In reply to Nicolas Frattaroli from comment #13) > I switched away from the nvidia drivers more than a week ago, and the > problem has been gone ever since. It looks like the issue is either in the > nvidia driver itself, or the codepath which triggers it is only active when > the system uses the nvidia driver, and not with other OpenGL implementations. Nicolas please tell me why Ubuntu konsole with the same kernel and Nvidia driver worked without symptoms. I try to replace konsole from Ubuntu to Kubuntu and worked also ok-think the problem is in the console
(In reply to Nicolas Frattaroli from comment #13) > I switched away from the nvidia drivers more than a week ago, and the > problem has been gone ever since. It looks like the issue is either in the > nvidia driver itself, or the codepath which triggers it is only active when > the system uses the nvidia driver, and not with other OpenGL implementations. I have the same symptoms. Using Kubuntu 15.10 + Plasma 5.4 + nvidia drivers. Switching to nouveau solves the problem.
(In reply to Christian González from comment #16) > (In reply to Nicolas Frattaroli from comment #13) > > I switched away from the nvidia drivers more than a week ago, and the > > problem has been gone ever since. It looks like the issue is either in the > > nvidia driver itself, or the codepath which triggers it is only active when > > the system uses the nvidia driver, and not with other OpenGL implementations. > > I have the same symptoms. Using Kubuntu 15.10 + Plasma 5.4 + nvidia drivers. > Switching to nouveau solves the problem. But Ubuntu 15.10 + nvidia drivers konsole without problem. I think bug is in KDE konsole.
I also have this problem with the proprietary Nvidia driver, version 352.41 on Kubuntu 15.10 with Plasma 5.4 and Konsole 15.08.0.
I have the same issue with Konsole 15.08.0 , I am too on nvidia, My OS is arch
I have the same issue and also use the nVidia proprietary drivers.
The same issue here on Kubuntu 15.10 and NVidia proprietary drivers. After closing Konsole it starts consuming all CPU.
Created attachment 95238 [details] Screenshot of a System monitor after closing Konsole
Arch Linux x64 plasma desktop 5.4.2 Konsole 15.08.0 nvidia 355.11 not fixed... pls confirm this bad thing.
On Kubuntu 15.10 (Plasma 5.4.2, generic 4.2.0 -17) with Nvidia 352.41 on an 960M Chip I can also confirm this problem. Its a konsole process and it's consumes about 100 % CPU time.
*** This bug has been confirmed by popular vote. ***
Confirm. :(
I did not see this bug after migrating to Nouveau drivers and Plasma 5.
same here: opensuse Leap 42.1 x86_64 kde plasma desktop 5.4.2 Konsole 15.08.0 CPU: Intel(R) Core(TM) i7 CPU M 620 @ 2.67GHz GPU: NVIDIA Corporation GT216M [GeForce GT 330M] (rev a2) nvidia Driver Version: 340.93 any help? thank you.
(In reply to Lukas Jirkovsky from comment #10) > I have the same problem, but it's not limited to konsole – sometimes > ksmserver hangs, too. This happen especially when logging out. So I gues > it's nVidias fault. On openSUSE Leap 42.1 I also have this problem. Konsole has not given any problems until now. ksmserver hangs when I have been logged for a long time, as far as I can see always. It does not happen when I have been logged in for a short time. I have not been able to find what triggers this (is there a way to find this out?). Question: is this the same bug, or should a new one been filed? Has anyone reported this to the nvidia devs? this with the 352.55 drivers. Nouveau works without problems.
*** This bug has been marked as a duplicate of bug 343803 ***
openSUSE leap 42.1 KDE Console closing 100% CPU usage using nvidia driver for nvidia gt 9600
can confirm problem here: konsole 15.08.0 nvidia 352.63
fyi, according to followups in bug #343803 This should be fixed in newer versions of nvidia driver, reportedly at least in 361.18
Considering that not all the video cards are supported by this driver, is there a chance to see this bug solved on konsole side?
Kubuntu 16.04 beta, nvidia proprietary drivers and the problem persists.
Same issue here affecting me on latest KDE Neon image. One CPU core stays pegged at 100% after closing Konsole. Running 340.96 NVidia drivers.
As it turns out from my experience it has nothing to do with a certain driver version (per se) We first saw thing go away in 361.16 because libglvnd was use standard I had issues with it again in the following driver 361.28, because that did not use libglvnd by default. As I detailed in the parent thread (this is the dupe, the solution was for me to do the following: NVIDIA-Linux-x86_64-361.28.run -s --dkms --install-libglvnd --glvnd-glx-client Today I am also using 364.12 with libglvnd installed and still have no issues. (I am also testing out the new nvidia-modeset and nvidia-drm modules too and haven't had issues with this either) It appears the issue resides in the use or non-use, rather, of GLVND.
Same here nvidia-settings: version 352.21 (buildd@lgw01-37) Thu Jul 23 11:50:49 UTC
Resolved ????!!!! I also use Nvidia 340 drivers. All these days after I installed the new Mint KDE 18 OS , I used to run the konsole to make my system better , to take updates , to fix my fstab ,etc etc and closing this application, I actually had less than the 50% of my CPU available… Finally I noticed that konsole was running to the backround. Lucky me !!! This is the main reason (I guess), I found plasma desktop very heavy and I wanted to change my desktop !!! Because of a konsole with psychological problems……. Thanks a lot for your understanding …..!
(In reply to fanisatt from comment #40) > Resolved ????!!!! > I also use Nvidia 340 drivers. > All these days after I installed the new Mint KDE 18 OS , I used to run the > konsole to make my system better , to take updates , to fix my fstab ,etc > etc and closing this application, I actually had less than the 50% of my CPU > available… > Finally I noticed that konsole was running to the backround. Lucky me !!! > This is the main reason (I guess), I found plasma desktop very heavy and I > wanted to change my desktop !!! > Because of a konsole with psychological problems……. > Thanks a lot for your understanding …..! It's not resolved !!! Workaroud : start konsole under strace : "strace konsole" instead of "konsole".
This, among others, is the reason I switched to: www.trinitydesktop.org It can coexist with current versions of KDE and applications such as kdevelop 5. It is not compatible with plasma, but for me it is an advantage.