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-X,
which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1437719
Title:
[Dell Inspiron 5547] Black Screen on user switch
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1437719/+subscriptions
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