Lost taskbar and app title bars upon kde wake up from sleep.

**davidonlaptop** · July 16th, 2013

Hello !

When I put the computer to sleep, and then wake it up, the bottom KDE bar is lost, and the title bar at the top of each application is gone. The only thing remaining is the desktop widget showing the files in my Desktop directory.

I just installed Kubuntu 13.04 yesterday, I did not do any configuration, besides updating the source server and installing all system updates (up to July 15). The computer is Desktop computer, not a laptop.

Any pointers to get started on this problem?

**davidonlaptop** · July 17th, 2013

It's a bit annoying, anyone has seem this problem before?

When I resume from sleep, there is not even the contextual menu upon a right click. Looks like if the KDE shell is gone.

Some more information about my system:

uname -a
Linux Zalman83 3.8.0-26-generic #38-Ubuntu SMP Mon Jun 17 21:43:33 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
X.Org X Server 1.13.3
kde4-config -kde-version
4.10.4
lspci |grep VGA
01:00.0 VGA compatible controller: NVIDIA Corporation GF116 [GeForce GTX 550 Ti] (rev a1)

Screenshot after wakeup
snapshot1.jpg

lspci
lspci.txt

lsusb
lsusb.txt

lsmod
lsmod.txt

Is this more a Kubuntu / KDE / Nouveau driver / Video card or Xorg problem ?
Is this the right subforum to ask for this problem ?

**dino99** · July 17th, 2013

i suppose you'll get more chance by posting on http://www.kubuntuforums.net/forum.php

**davidonlaptop** · July 17th, 2013

I am looking at syslog, and found these messages :

Code:

Jul 17 05:25:23 Zalman83 kernel: [ 2512.219420] nouveau E[  PGRAPH][0000:01:00.0] TRAP ch 1 [0x023fe00000]
Jul 17 05:25:23 Zalman83 kernel: [ 2512.219435] nouveau E[  PGRAPH][0000:01:00.0] GPC0/TPC0/MP: 0x001beff2 0x0000000f
Jul 17 05:25:23 Zalman83 kernel: [ 2512.219444] nouveau E[  PGRAPH][0000:01:00.0] GPC0/TPC1/MP: 0x001beff2 0x0000000f
Jul 17 05:25:23 Zalman83 kernel: [ 2512.219452] nouveau E[  PGRAPH][0000:01:00.0] GPC0/TPC2/MP: 0x001beff2 0x0000000f
Jul 17 05:25:23 Zalman83 kernel: [ 2512.219460] nouveau E[  PGRAPH][0000:01:00.0] GPC0/TPC3/MP: 0x001beff2 0x0000000f

Then, there is a few thousands of these messages :

Code:

Jul 17 05:25:23 Zalman83 kernel: [ 2512.252626] nouveau E[  PGRAPH][0000:01:00.0] TRAP ch 1 [0x023fe00000]
Jul 17 05:25:23 Zalman83 kernel: [ 2512.252633] nouveau E[  PGRAPH][0000:01:00.0] SHADER 0xa004021e

Full syslog
syslog.tar.gz

Timestamps of the events :
21:58:24 boot time
22:39:55 sleep time
05:25:23 wake up time

Are these TRAP and SHADER events normal ?