The bug I see on my Dell D830 (8GB RAM, Nvidia G86M [Quadro NVS 140M] (rev a1)) with nouveau driver using Kubuntu 16.04.
After login everything seems to work fine for roughly 2 minutes. After that flickering and tearing starts (when moving windows around with the mouse) and gets more intense until the screen is full of "color-blobs" (which means: one cannot see anything anymore). Starting a flash movie in Firefox provokes immediate tearing and flickering.
Restarting the kwin compositor helps - for another 2 minutes, then the whole problem starts to catch on momentum again. I tried everything mentioned here:
http://askubuntu.com/questions/672007/flickering-in-kde-plasma-5-4
the only thing that helps for a longer period of time is turning off compositing completely.
I am unsure where to further look for the problem: Is it kwin? xorg? nouveau? All of them? Whatever? The logs I checked (xorg, syslog, dmesg etc.) contain nothing that I can make sense of.
I'd appreciate any hint to where (and: what) to look (for) and which more specific information to collect ...
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xorg 1:7.7+13ubuntu3
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CurrentDesktop: KDE
Date: Wed Apr 20 19:22:50 2016
EcryptfsInUse: Yes
InstallationDate: Installed on 2016-03-22 (28 days ago)
InstallationMedia: Kubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160320)
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
---
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
BootLog:
CurrentDesktop: KDE
DistUpgraded: Fresh install
DistroCodename: xenial
DistroRelease: Ubuntu 16.04
DistroVariant: kubuntu
DkmsStatus:
bcmwl, 6.30.223.248+bdcom, 4.4.0-22-generic, x86_64: installed
bcmwl, 6.30.223.248+bdcom, 4.4.0-24-generic, x86_64: installed
vboxhost, 5.0.22, 4.4.0-22-generic, x86_64: installed
vboxhost, 5.0.22, 4.4.0-24-generic, x86_64: installed
EcryptfsInUse: Yes
GraphicsCard:
NVIDIA Corporation G86M [Quadro NVS 140M] [10de:0429] (rev a1) (prog-if 00 [VGA controller])
Subsystem: Dell G86M [Quadro NVS 140M] [1028:01fe]
InstallationDate: Installed on 2016-05-02 (46 days ago)
InstallationMedia: Kubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
MachineType: Dell Inc. Latitude D830
NonfreeKernelModules: wl
Package: xorg 1:7.7+13ubuntu3
PackageArchitecture: amd64
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-24-generic root=UUID=5f4a29b4-76d7-473a-948b-6e916e79e20f ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.4.0-24.43-generic 4.4.10
Tags: xenial kubuntu
Uname: Linux 4.4.0-24-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers wireshark
_MarkForUpload: True
dmi.bios.date: 07/21/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A13
dmi.board.name: 0UY141
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA13:bd07/21/2008:svnDellInc.:pnLatitudeD830:pvr:rvnDellInc.:rn0UY141:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Latitude D830
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.67-1ubuntu0.16.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2.2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2
doweller, thank you for reporting this and helping make Ubuntu better.
Could you please run the following command once from a terminal by ensuring you have the package xdiagnose installed, and that you click the Yes button for attaching additional debugging information:
apport-collect -p xorg 1572679
When reporting xorg related bugs in the future, please do so via the above method. You can learn more about this functionality at https:/