Problems after system update

[Marshall]

I've been using Kubuntu for about a year now with no issues, everything's been great.

But, since doing a system update last week (now running Ubuntu 14.04, KDELibs 4.13.3, Qt version 4.8.6, kernel version 3.13.0-30) on my laptop, I've run into three major issues: no sound (it looks like the system doesn't recognize the sound card), issues with power management, and unmet dependencies whenever I try to install something, which is probably the most serious issue.

Here's what I get whenever I try to use sudo apt-get:

user@user-ThinkPad-Edge-E530:~/Documents/PythonProjects$ sudo apt-get -u dist-upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these.
The following packages have unmet dependencies:
linux-headers-3.13.0-53-generic : Depends: linux-headers-3.13.0-53 but it is not installed
linux-image-generic : Depends: linux-image-extra-3.13.0-53-generic but it is not installed
wine-compholio : Depends: wine-compholio-amd64 (= 1.7.26~ubuntu14.04.1) but 1.7.43~ubuntu14.04.1 is installed
Depends: wine-compholio-i386 (= 1.7.26~ubuntu14.04.1) but it is not installable
E: Unmet dependencies. Try using -f.

Depending on what I try to do it can be more or less, but those three seem to be at the core of the problem.

Any ideas?

[oshunluvr]

Have you tried sudo apt-get -f install like the message says?

[Marshall]

Have you tried sudo apt-get -f install like the message says?

Yes, I have, and I still get the same dependencies. I know sudo apt-get -f is supposed to fix dependency issues, but it's not working in this case.

edit: attempting sudo apt-get -f -u dist-upgrade, hadn't tried -f on that one yet.

[Qqmike]

It wouldn't hurt to run these three, this way:
sudo dpkg --configure -a
sudo apt-get update
sudo apt-get -f install

[Marshall]

It wouldn't hurt to run these three, this way:
sudo dpkg --configure -a
sudo apt-get update
sudo apt-get -f install

Well, I'd already entered sudo apt-get -f -u dist-upgrade expecting to run into the same dependencies again (-f hadn't worked earlier on a few things). Lo and behold it started going, looks like it did an upgrade from kernel version 3.13.0-30 to 3.13.0-53. The sound is working again, and power management is as well. Hopefully the dependency issue was solved.

Could you please explain the difference between the commands you suggested and the one I executed?

[oshunluvr]

The dpkg command doesn't download anything but it can re-configure and/or install a package that is queued but apt-get didn't complete for some reason (like a missing dependency). It will often fix a messed up installer issue. You should run apt-get update - especially when using a new release like 15.04 - prior to any other apt-get command just to be sure you're getting the correct packages.

In your case here, it's possible that you got the first file from the repo but the second one hadn't uploaded all the way yet. This would cause a missing dependency just because if wasn't available the first time. Other things can cause the same issue - like a crash during package install.

Upgrade vs. dist-upgrade:

upgrade
upgrade is used to install the newest versions of all packages
currently installed on the system from the sources enumerated in
/etc/apt/sources.list. Packages currently installed with new
versions available are retrieved and upgraded; under no
circumstances are currently installed packages removed, or packages
not already installed retrieved and installed. New versions of
currently installed packages that cannot be upgraded without
changing the install status of another package will be left at
their current version. An update must be performed first so that
apt-get knows that new versions of packages are available.

dist-upgrade
dist-upgrade in addition to performing the function of upgrade,
also intelligently handles changing dependencies with new versions
of packages; apt-get has a "smart" conflict resolution system, and
it will attempt to upgrade the most important packages at the
expense of less important ones if necessary. So, dist-upgrade
command may remove some packages. The /etc/apt/sources.list file
contains a list of locations from which to retrieve desired package
files. See also apt_preferences(5) for a mechanism for overriding
the general settings for individual packages.

[Marshall]

The dpkg command doesn't download anything but it can re-configure and/or install a package that is queued but apt-get didn't complete for some reason (like a missing dependency). It will often fix a messed up installer issue. You should run apt-get update - especially when using a new release like 15.04 - prior to any other apt-get command just to be sure you're getting the correct packages.

In your case here, it's possible that you got the first file from the repo but the second one hadn't uploaded all the way yet. This would cause a missing dependency just because if wasn't available the first time. Other things can cause the same issue - like a crash during package install.

Thanks!