[Bug 1438448] [NEW] unity-greeter/lightdm creates another guest session when switching from guest to guest

2015-03-30 Thread Marek Wrzosek
Public bug reported:

When someone tries to switch user from guest session and choose guest session 
second time, new guest user is created by guest-account script and new guest 
session is opened.
It should switch back to already created guest session, instead of creating 
another one.

Description:Ubuntu 14.04.1 LTS
Release:14.04

unity-greeter:
  Zainstalowana: 14.04.10-0ubuntu1
lightdm:
  Zainstalowana: 1.10.3-0ubuntu2

** Affects: unity-greeter (Ubuntu)
 Importance: Undecided
 Status: New

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  unity-greeter/lightdm creates another guest session when switching
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[Bug 1438448] Re: unity-greeter/lightdm creates another guest session when switching from guest to guest

2015-03-30 Thread Marek Wrzosek
After some consideration, if someone creates enough guest accounts,
he/she will drain resources, e.g. RAM, system would crash and if swap
space was in use (and not encrypted), then someone (with physical
access) could boot into live cd/usb to analyze contents of RAM saved on
swap partition. But it could be done easier in another way, then
creating a lot of guest accounts. So do what you want with this bug
report.

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  unity-greeter/lightdm creates another guest session when switching
  from guest to guest

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[Bug 1420430] Re: Disconnect menu item in network-manager taskbar tool is inactive when connected to network

2015-02-20 Thread Marek Wrzosek
Installing older versions (from precise, instead of precise-updates) of
ubuntu-desktop, unity-greeter, network-manager and network-manager-gnome
works the charm too ;) Disconnecting from WiFi or wired was pain in...
some part of the body, but disconnecting from Bluetooth PAN was almost
impossible.

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Title:
  Disconnect menu item in network-manager taskbar tool is inactive
  when connected to network

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[Bug 1214482] Re: Not-grouping dependent packages in Phased Updates changes propability distribution for entire group of dependent packages.

2014-06-01 Thread Marek Wrzosek
Extending this Linux packages example. What if some proprietary device driver 
called X? This driver is not from Linux source package, but every update of 
Linux will cause the need of rebuilding X's deb packages. Sources are 
independent but deb packages of X depends on Linux's deb packages. If you 
change RNG's probability distribution from uniform to normal, then probability 
distribution will stay normal, but parameters will change (e.g. average).
You can compare this two m-files:
uniform.m:

figure(1)
hist(rand(1,10),100,1)
for i = 2:10
 figure(i)
 hist(max(rand(i,10)),100,1)
endfor

normal.m:

figure(1)
hist(randn(1,10),100,1)
for i = 2:10
 figure(i)
 hist(max(randn(i,10)),100,1)
endfor

If you combine normal distribution with seeding RNG with (source package name, 
update version, client-machine-id), then this will keep number of random 
variables to low values and combined probability distribution will be closer to 
normal.
In this scenario Linux's packages probability distribution will be normal 
(because it is independent) and X's will be like for i = 2 from 'normal.m' 
file. You can calculate parameters of probability distributions for dependent 
groups of deb packages (coming from the same source packages) using lists of 
installed packages from users that report bugs.

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Title:
  Not-grouping dependent packages in Phased Updates changes propability
  distribution for entire group of dependent packages.

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[Bug 1214482] Re: Not-grouping dependent packages in Phased Updates changes propability distribution for entire group of dependent packages.

2014-06-01 Thread Marek Wrzosek
After some consideration - maybe real life scenario will be better. Regard 
Linux, Nvidia, ATI and some DVB-T dongle without driver in current kernel. 
There will be 6 groups of users:
a) only Linux, (i=1)
b) Linux and Nvidia, (i=2)
c) Linux and ATI, (i=2)
d) Linux and DVB-T dongle, (i=2)
e) Linux, Nvidia and DVB-T dongle, (i=3)
f) Linux, ATI and DVB-T dongle. (i=3)
These are all kernel or kernel modules so they could share the same threshold 
value. You can calculate percentage of users for Linux-only using normal 
distribution and use it directly for group a), for other groups will be easy to 
calculate parameters of their distribution using the i value (number of random 
variables) and recalculate pristine threshold for all packages from b) to f) 
groups accordingly, then compare it with maximum value of random generated 
numbers for Linux, graphics and DVB-T. That way will be possible to determine 
percentage of users that installed newer versions of packages and this 
percentage can be equal for all groups (from a) to f)). The value of i can be 
estimated using list of installed packages for every user reporting bug.
For other software packages it should be similar as for Linux example.

I can be wrong, so correct me if you find any mistake.

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Title:
  Not-grouping dependent packages in Phased Updates changes propability
  distribution for entire group of dependent packages.

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[Bug 1214482] Re: Not-grouping dependent packages in Phased Updates changes propability distribution for entire group of dependent packages.

2014-05-28 Thread Marek Wrzosek
Yeah, I forgot about this report. If (Pseudo)Random Number Generator is seeded 
that way, then in most cases this will be fine, only in bad-luck cases (when 
source packages are different but debs depends on each other) my analysis will 
apply. The good news is that, even if this situation occurs, the upgrade part 
of the process is fine, only the data analysis part must concern different 
probability distribution (when mapping number of bug reports to percentage of 
users).
PS. Sorry for my English, I wasn't using it for a while... in last months.

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Title:
  Not-grouping dependent packages in Phased Updates changes propability
  distribution for entire group of dependent packages.

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[Bug 1214482] Re: Not-grouping dependent packages in Phased Updates changes propability distribution for entire group of dependent packages.

2013-09-09 Thread Marek Wrzosek
The real probability distribution will be a sum of separate
distributions and will depend of fractions of user who installed i of n
packages. Below I pasted formula from LibO Math:

P(x)= sum from {i=1} to {n} a_i P_i(x) newline
0= a_i = 1 newline
a_i - a fraction of users who installed i packages from a group of n 
dependent packages newline
to total amount of users who installed any number of packages from the same 
group newline 
P_i(x) - Probability distribution for i dependent packages

The real probability distribution will be hard to predict, so leaving
this as is is against the KISS paradigm.

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Title:
  Not-grouping dependent packages in Phased Updates changes propability
  distribution for entire group of dependent packages.

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[Bug 1214482] [NEW] Not-grouping dependent packages in Phased Updates changes propability distribution for entire group of dependent packages.

2013-08-20 Thread Marek Wrzosek
Public bug reported:

I assume that you decided for uniform distribution in the random number
generator. If group of dependent packages is installed only when all
phased-update-percentage values (for each package) are smaller than the
present percentage on server - it will change probability distribution
for the whole group of packages.

Just run this:

figure(1)
hist(rand(1,10))
for i = 2:10
figure(i)
hist(max(rand(i,10)))
endfor

in octave and look at histograms for i1 (i is the number of dependent
packages).

** Affects: update-manager (Ubuntu)
 Importance: Undecided
 Status: New

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  Not-grouping dependent packages in Phased Updates changes propability
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[Bug 1214482] Re: Not-grouping dependent packages in Phased Updates changes propability distribution for entire group of dependent packages.

2013-08-20 Thread Marek Wrzosek
For normalized histograms:

figure(1)
hist(rand(1,10),10,1)
for i = 2:10
figure(i)
hist(max(rand(i,10)),10,1)
endfor

If we're upgrading kernel, than packages are:
linux-generic
linux-headers-generic
linux-image-generic
linux-libc-dev
linux-headers-version
linux-headers-version-generic
linux-image-version-generic

so for this group i=7 and for percentage  40% will be almost no bug
reports ;)

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  Not-grouping dependent packages in Phased Updates changes propability
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[Bug 1184086] Re: HUD can't find LibO menu entries after print preview

2013-05-26 Thread Marek Wrzosek
Thank you for clarification. Can you tell me how to report bugs to this
particular PPA? I can't see any report bug link there, only contact
this team's admins. There are 3 bug reports, so it is possible.

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Title:
  HUD can't find LibO menu entries after print preview

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[Bug 1184086] [NEW] HUD can't find LibO menu entries after print preview

2013-05-25 Thread Marek Wrzosek
Public bug reported:

Just after switch to print preview mode HUD cannot find any
Libreoffice menu but menu is still working using mouse. When print
preview is closed HUD is still blind.

Description:Ubuntu 12.04.2 LTS
Release:12.04

libreoffice:
  Zainstalowana: 1:4.0.3-0ubuntu1~precise2

** Affects: libreoffice (Ubuntu)
 Importance: Undecided
 Status: New

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  HUD can't find LibO menu entries after print preview

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[Bug 1182082] Re: libreoffice menu not working

2013-05-23 Thread Marek Wrzosek
*-precise2 update works like a charm. Thanks!

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Title:
  libreoffice menu not working

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[Bug 1182768] [NEW] menu does not work in writer, calc and impress in LibO 4.0.3.3 from libreoffice ppa (precise)

2013-05-22 Thread Marek Wrzosek
Public bug reported:

Nothing happens after clicking on menu. Without libreoffice-gtk and
libreoffice-gnome LibO looks ugly, but is working. LibO 4.0.2.2 was
fine.

`lsb_release -rd`:
Description:Ubuntu 12.04.2 LTS
Release:12.04

`apt-cache policy libreoffice`:
libreoffice:
  Zainstalowana: 1:4.0.3-0ubuntu1~precise1
  Kandydująca:   1:4.0.3-0ubuntu1~precise1
  Tabela wersji:
 *** 1:4.0.3-0ubuntu1~precise1 0
500 http://ppa.launchpad.net/libreoffice/ppa/ubuntu/ precise/main amd64 
Packages
100 /var/lib/dpkg/status
 1:3.5.7-0ubuntu4 0
500 http://pl.archive.ubuntu.com/ubuntu/ precise-updates/main amd64 
Packages
 1:3.5.4-0ubuntu1.1 0
500 http://security.ubuntu.com/ubuntu/ precise-security/main amd64 
Packages
 1:3.5.2-2ubuntu1 0
500 http://pl.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages

** Affects: libreoffice (Ubuntu)
 Importance: Undecided
 Status: New

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Title:
  menu does not work in writer, calc and impress in LibO 4.0.3.3 from
  libreoffice ppa (precise)

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[Bug 1182082] Re: libreoffice menu not working

2013-05-22 Thread Marek Wrzosek
I'm using Libreoffice 4.0.3.3 on ubuntu 12.04.2 64-bit with 3.2.0 kernel (if it 
matters) and I reported a bug 
https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1182768
Menus are not blank but useless (there is only one submenu working - File - 
New - *). Menus are populated, but not working at all (even using dash). This 
bug is in every LibO window, not only in writer, calc and impress. Is it 
duplicate?

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  libreoffice menu not working

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[Bug 1101899] Re: Installation of xorg-lts-quantal removes ia32-libs-multiarch

2013-02-15 Thread Marek Wrzosek
Actually is does remove for example:
Następujące pakiety zostaną USUNIĘTE:
  acroread acroread-fonts google-earth-stable ia32-libs
  ia32-libs-multiarch:i386 libgl1-mesa-dri libgl1-mesa-dri:i386
  libgl1-mesa-glx libgl1-mesa-glx:i386 libglapi-mesa libglapi-mesa:i386
  libglu1-mesa:i386 libqt4-opengl:i386 libvisual-0.4-plugins:i386
  libxatracker1 playonlinux virtualbox-guest-x11 wine wine1.5 wine1.5-amd64
  wine1.5-i386:i386

and similiar.
Mesa packets and similiar will be installed again in lts-quantal version:

Zostaną zainstalowane następujące NOWE pakiety:
  libgl1-mesa-dri-lts-quantal libgl1-mesa-glx-lts-quantal
  libglapi-mesa-lts-quantal libllvm3.1 libtxc-dxtn-s2tc0
  libxatracker1-lts-quantal libxrandr-ltsq2

but acroread, google-earth, wine, playonlinux, etc. will be gone.
Acroread and wine are huge and I don't want to download it again but I need 
them.

PS. Sorry for my english.

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  Installation of xorg-lts-quantal removes ia32-libs-multiarch

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