The fix may be in kernel 3.19.0-25.26. I did build and install this
kernel and in subsequent stress testing (about 2 hours worth) was unable
to reproduce the defect. It's rare for me to not encounter the defect in
less than 5 minutes of stress testing - might have once made it to about
20 minutes - but never before to two hours. I'm not ready to call it
fixed though just yet.
To begin with I would like to get using an official build of the kernel.
As previously noted I was unable to install the 14.04.3 HWE stack that
contains this kernel. Here is the command I ran and the problems
encountered:
sudo apt-get install --install-recommends linux-generic-lts-vivid
xserver-xorg-core-lts-vivid xserver-xorg-lts-vivid xserver-xorg-video-
all-lts-vivid xserver-xorg-input-all-lts-vivid libwayland-egl1-mesa-lts-
vivid
Reading package lists...
Building dependency tree...
Reading state information...
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
libcogl15 : Depends: libegl1-mesa-drivers
libwayland-egl1-mesa-lts-vivid : Depends: libegl1-mesa-lts-vivid (=
10.5.2-0ubuntu1~trusty1) but it is not going to be installed
Conflicts: xorg-renamed-package-lts-utopic
xserver-xorg-core-lts-vivid : Depends: libgbm1-lts-vivid (>= 8.1~0) but it is
not going to be installed
Recommends: libgl1-mesa-dri-lts-vivid (>=
7.10.2-4) but it is not going to be installed
Conflicts: xorg-renamed-package-lts-utopic
xserver-xorg-input-all-lts-vivid : Depends: xserver-xorg-input-evdev-lts-vivid
but it is not going to be installed
Depends:
xserver-xorg-input-vmmouse-lts-vivid but it is not going to be installed
Depends:
xserver-xorg-input-synaptics-lts-vivid but it is not going to be installed
Depends: xserver-xorg-input-wacom-lts-vivid
but it is not going to be installed
xserver-xorg-lts-vivid : Depends: xserver-xorg-input-evdev-lts-vivid but it is
not going to be installed
Recommends: libgl1-mesa-dri-lts-vivid but it is not
going to be installed
Recommends: libgl1-mesa-glx-lts-vivid but it is not
going to be installed
Recommends: libegl1-mesa-lts-vivid but it is not
going to be installed
Recommends: libegl1-mesa-drivers-lts-vivid but it is
not installable
Recommends: libgbm1-lts-vivid but it is not going to
be installed
Recommends: libgles2-mesa-lts-vivid but it is not
going to be installed
Recommends: libgles1-mesa-lts-vivid but it is not
going to be installed
Conflicts: libegl1-mesa (>= 0~)
Conflicts: libgl1-mesa-dri (>= 0~)
Conflicts: libgl1-mesa-glx (>= 0~)
Conflicts: libglapi-mesa (>= 0~)
Conflicts: libgles2-mesa (>= 0~)
Conflicts: xorg-renamed-package-lts-utopic
xserver-xorg-video-all-lts-vivid : Depends: xserver-xorg-video-ati-lts-vivid
but it is not going to be installed
Depends:
xserver-xorg-video-cirrus-lts-vivid but it is not going to be installed
Depends: xserver-xorg-video-fbdev-lts-vivid
but it is not going to be installed
Depends: xserver-xorg-video-intel-lts-vivid
but it is not going to be installed
Depends: xserver-xorg-video-mga-lts-vivid
but it is not going to be installed
Depends:
xserver-xorg-video-neomagic-lts-vivid but it is not going to be installed
Depends:
xserver-xorg-video-nouveau-lts-vivid but it is not going to be installed
Depends:
xserver-xorg-video-openchrome-lts-vivid but it is not going to be installed
Depends:
xserver-xorg-video-savage-lts-vivid but it is not going to be installed
Depends:
xserver-xorg-video-siliconmotion-lts-vivid but it is not going to be installed
Depends:
xserver-xorg-video-sisusb-lts-vivid but it is not going to be installed
Depends: xserver-xorg-video-tdfx-lts-vivid
but it is not going to be installed
Depends:
xserver-xorg-video-trident-lts-vivid but it is not going to be installed
Depends: xserver-xorg-video-vesa-lts-vivid
but it is not going to be installed
Depends:
xserver-xorg-video-vmware-lts-vivid but it is not going to be installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by
held packages.
I suppose I could just install the kernel - but I think it would be
better if I can keep the core system in sync with the LTS releases.
--
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1437719
Title:
[Dell Inspiron 5547] Black Screen on user switch
Status in xorg package in Ubuntu:
New
Bug description:
When switching users (primarly using Ctrl-Alt-F(7-10) the monitor will
sometimes go black. This happens once or twice a day, although on
occasion it doesn't occur for several days. It has occurred at least
once a week since I installed Ubuntu 14.04.1. It seems to be more of a
problem since moving to 14.04.2 - I did perform installation of the
Utopic Kernel, X, and MesaGL packages, but this is only perception. At
the same time I switched from Unity to Cinnamon (Jeremy Clarkson isn't
the only dinosaur roaming the world) - but I have confirmed that just
running Unity desktops is vunerable.
The display can be restored by sudo service lightdm restart - run from
an ssh login from another system.
Steps to consistently reproduce the problem is simply to perform
abusive user stress testing: switching from one user to another
rapidly: as soon as the display switches go back to the other. Usually
I can get a black screen with this method in under a minute with Unity
desktops.
I have the same issue with another system (Dell Vostro 3550) reported
in Bug #1437557 - submitting a new defect since this is different
hardware and even though the defects look the same there might be
differences underneath the hood causing the problem.
14.04.2 Trusty
3.16.0-33-generic.
I'll edit this report shortly with additional system info.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8.1
ProcVersionSignature: Ubuntu 3.16.0-33.44~14.04.1-generic 3.16.7-ckt7
Uname: Linux 3.16.0-33-generic x86_64
.tmp.unity.support.test.0:
ApportVersion: 2.14.1-0ubuntu3.8
Architecture: amd64
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
Date: Sat Mar 28 14:45:26 2015
DistUpgraded: Fresh install
DistroCodename: trusty
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16]
(rev 0b) (prog-if 00 [VGA controller])
Subsystem: Dell Device [1028:063e]
InstallationDate: Installed on 2014-12-23 (95 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64
(20140722.2)
MachineType: Dell Inc. Inspiron 5547
ProcEnviron:
LANGUAGE=en_US
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-33-generic
root=UUID=6eb0eadb-81ed-43ee-aab3-e3fe6b37ca75 ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/12/2014
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A05
dmi.board.name: 0598GM
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A05
dmi.modalias:
dmi:bvnDellInc.:bvrA05:bd08/12/2014:svnDellInc.:pnInspiron5547:pvrA05:rvnDellInc.:rn0598GM:rvrA00:cvnDellInc.:ct8:cvrA05:
dmi.product.name: Inspiron 5547
dmi.product.version: A05
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.11.3+14.04.20150122-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.56-1~ubuntu2
version.libgl1-mesa-dri: libgl1-mesa-dri N/A
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core N/A
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A
xserver.bootTime: Fri Mar 27 15:14:18 2015
xserver.configfile: default
xserver.errors:
SynPS/2 Synaptics TouchPad: Read error 19
SynPS/2 Synaptics TouchPad: Read error 19
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
product id 1110
vendor LGD
xserver.version: 2:1.16.0-1ubuntu1.2~trusty2
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1437719/+subscriptions
--
Mailing list: https://launchpad.net/~touch-packages
Post to : touch-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~touch-packages
More help : https://help.launchpad.net/ListHelp
