conflicting packages while installing perf

[fcole90]

I was trying to run perf, but I discovered it was not installed

```
$ perf stat -d so4/so-benchmark 1000000

Command 'perf' not found, but can be installed with:

sudo apt install linux-oem-5.6-tools-common # version 5.6.0-1008.8, or
sudo apt install linux-tools-common # version 5.4.0-29.33
```

So I decided to install the latest version, so as `linux-oem-5.6-tools-common`.
```
$ sudo apt install linux-oem-5.6-tools-common
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
  linux-oem-5.6-tools-common
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 174 kB of archives.
After this operation, 395 kB of additional disk space will be used.
Get:1 http://ubuntu.mirror.su.se/ubuntu focal-updates/main amd64 linux-oem-5.6-tools-common all 5.6.0-1008.8 [174 kB]
Fetched 174 kB in 0s (446 kB/s)
Selecting previously unselected package linux-oem-5.6-tools-common.
(Reading database ... 326483 files and directories currently installed.)
Preparing to unpack .../linux-oem-5.6-tools-common_5.6.0-1008.8_all.deb ...

Progress: [ 0%] [.............................................................................................................]
Unpacking linux-oem-5.6-tools-common (5.6.0-1008.8) ...........................................................................]

Setting up linux-oem-5.6-tools-common (5.6.0-1008.8) ...#####..................................................................]

Progress: [ 60%] [#################################################################............................................]
Processing triggers for man-db (2.9.1-1) ...#############################################################......................]
```

Then it finished, so I wanted to run perf finally.

```
$ perf stat -d so4/so-benchmark 1000000
WARNING: perf not found for kernel 5.4.0-28

  You may need to install the following packages for this specific kernel:
    linux-tools-5.4.0-28-generic
    linux-cloud-tools-5.4.0-28-generic

  You may also want to install one of the following packages to keep up to date:
    linux-tools-generic
    linux-cloud-tools-generic
```

Ok, so I discover that my kernel is not compatible with version 5.6. But apt suggests to install one of those, so I pick `linux-tools-generic` so it stays up to date.

```
$ sudo apt install linux-tools-generic
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
  linux-tools-5.4.0-29 linux-tools-5.4.0-29-generic linux-tools-common
The following NEW packages will be installed:
  linux-tools-5.4.0-29 linux-tools-5.4.0-29-generic linux-tools-common linux-tools-generic
0 upgraded, 4 newly installed, 0 to remove and 0 not upgraded.
Need to get 5 759 kB of archives.
After this operation, 25,7 MB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Get:1 http://ubuntu.mirror.su.se/ubuntu focal-updates/main amd64 linux-tools-common all 5.4.0-29.33 [186 kB]
Get:2 http://ubuntu.mirror.su.se/ubuntu focal-updates/main amd64 linux-tools-5.4.0-29 amd64 5.4.0-29.33 [5 568 kB]
Get:3 http://ubuntu.mirror.su.se/ubuntu focal-updates/main amd64 linux-tools-5.4.0-29-generic amd64 5.4.0-29.33 [1 988 B]
Get:4 http://ubuntu.mirror.su.se/ubuntu focal-updates/main amd64 linux-tools-generic amd64 5.4.0.29.34 [2 604 B]
Fetched 5 759 kB in 7s (878 kB/s)
Selecting previously unselected package linux-tools-common.
(Reading database ... 326549 files and directories currently installed.)
Preparing to unpack .../linux-tools-common_5.4.0-29.33_all.deb ...

Progress: [ 0%] [.............................................................................................................]
Unpacking linux-tools-common (5.4.0-29.33) ....................................................................................]
dpkg: error processing archive /var/cache/apt/archives/linux-tools-common_5.4.0-29.33_all.deb (--unpack):
 trying to overwrite '/usr/bin/acpidbg', which is also in package linux-oem-5.6-tools-common 5.6.0-1008.8
dpkg-deb: error: paste subprocess was killed by signal (Broken pipe)
Selecting previously unselected package linux-tools-5.4.0-29.
Preparing to unpack .../linux-tools-5.4.0-29_5.4.0-29.33_amd64.deb ...

Unpacking linux-tools-5.4.0-29 (5.4.0-29.33) ..................................................................................]

Selecting previously unselected package linux-tools-5.4.0-29-generic...........................................................]
Preparing to unpack .../linux-tools-5.4.0-29-generic_5.4.0-29.33_amd64.deb ...

Unpacking linux-tools-5.4.0-29-generic (5.4.0-29.33) ..........................................................................]

Selecting previously unselected package linux-tools-generic....................................................................]
Preparing to unpack .../linux-tools-generic_5.4.0.29.34_amd64.deb ...

Unpacking linux-tools-generic (5.4.0.29.34) ...#########.......................................................................]

Errors were encountered while processing:#####################.................................................................]
 /var/cache/apt/archives/linux-tools-common_5.4.0-29.33_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
```

So, unfortunately I have now my package dependencies broken..

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-tools-common (not installed)
ProcVersionSignature: Ubuntu 5.4.0-28.32-generic 5.4.30
Uname: Linux 5.4.0-28-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: fabio 4406 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: GNOME
Date: Sun May 10 15:09:06 2020
InstallationDate: Installed on 2020-04-03 (36 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200401)
MachineType: Dell Inc. XPS 15 7590
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-28-generic root=UUID=4f215b94-50a2-44af-b8c6-faf7cea8214a ro quiet splash vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
 linux-restricted-modules-5.4.0-28-generic N/A
 linux-backports-modules-5.4.0-28-generic N/A
 linux-firmware 1.187
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/06/2020
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.6.0
dmi.board.name: 0VYV0G
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.6.0:bd02/06/2020:svnDellInc.:pnXPS157590:pvr:rvnDellInc.:rn0VYV0G:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 15 7590
dmi.product.sku: 0905
dmi.sys.vendor: Dell Inc.
mtime.conffile..etc.apport.crashdb.conf: 2020-05-04T10:26:46.106768

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[fcole90 (fcole90)]

Temporary fix:
```
sudo dpkg --remove linux-oem-5.6-tools-common
sudo apt-get install --fix-broken
```

[apsaras (xbuntuone)]

Thanks fcole90.

Possible duplicate of https://bugs.launchpad.net/ubuntu/+source/linux-oem-5.6/+bug/1881120