Siduction Forum

Siduction Forum => Upgrade Warnings => Topic started by: gericom on 2015/09/18, 22:35:40

Title: As of today update CANNOT start the desktop
Post by: gericom on 2015/09/18, 22:35:40
 This application failed to start because it could not find or load the Qt platform plugin "xcb".
Available plugins are linuxfb, minimal, Wayland...

It is impossible to start the desktop, even sddm.
Title: Re: As of today update CANNOT start the desktop
Post by: devil on 2015/09/19, 07:25:35
You are probably missing libx11-xcb1.


greetz
devil
Title: Re: As of today update CANNOT start the desktop
Post by: gericom on 2015/09/19, 08:05:11
Nope, it is installed. Sometimes I am using kde-experimental repos. But libx11-xcb1 is installed. I have updated some qt5 libs last night and everything went broken.
Title: Re: As of today update CANNOT start the desktop
Post by: melmarker on 2015/09/19, 09:27:26
you have two easy choices:
* reinstall
* rollback/downgrade

the third choice is also easy - reinstall, congratulations, you messed up qt and kde badly.
Title: Re: As of today update CANNOT start the desktop
Post by: gericom on 2015/09/19, 09:35:30
Thanks, I will try that tonight, when I am back and will report.
Title: Re: As of today update CANNOT start the desktop
Post by: melmarker on 2015/09/19, 10:01:16
dont mix Qt/KDE sid with experimental - it will break, thats intentional
Title: Re: As of today update CANNOT start the desktop
Post by: gericom on 2015/09/19, 12:51:36
Ya, I know that, but sometimes I am getting stupid  ;D so can you tell me which are the siduction experimental repos, which are not intended to be used from normal user.
Thanks a lot.
Title: Re: As of today update CANNOT start the desktop
Post by: horo on 2015/09/19, 13:35:14
Quote from: gericom...Sometimes I am using kde-experimental repos...
...so can you tell me which are the siduction experimental repos, which are not intended to be used from normal user.

probably the entries in your sources.list.d files with "experimental" in the name that _YOU_ added.

Don't forget what your good book said (not to say RTFM): http://sidu-manual/sys-admin-apt

Ciao, Martin
Title: Re: As of today update CANNOT start the desktop
Post by: melmarker on 2015/09/19, 14:29:54
@gericom - rule of thumb - don't take Qt and Qt based packages from experimental - it must break. I have a sample from a packages maintained by myself:

sid: https://buildd.debian.org/status/package.php?p=liblxqt&suite=sid

experimental: https://buildd.debian.org/status/package.php?p=liblxqt&suite=experimental

Dependency installability problem for liblxqt on ppc64:

liblxqt build-depends on:
- ppc64:libqt5xdg-dev
ppc64:libqt5xdg-dev depends on:
- ppc64:libqt5xdg1 (= 1.2.0+20150807-1)
ppc64:libqt5xdg1 depends on missing:
- ppc64:qtbase-abi-5-4-2

Because of Qt 5.5 in experimental wich will break the ABI (and the virtual dependency). In other, warmer words: snafu 8)
Title: Re: As of today update CANNOT start the desktop
Post by: melmarker on 2015/09/19, 14:35:56
erm - and the discussion about kdenext you will find in another very popular thread - i say nothing pro/against kdenext - but recommend that one should stay far away from kdenext/experimental, the name is program and this repo is for development only - so it will indeed kill kittens and other lovely pets.