[Qgis-developer] [Linux Mint] QGIS 2.8.1. stop work when upgrading to GDAL 11.1.2

[João Gaspar]

OS System: Linux Mint 17 Qiana 64-bits

I guys,

i upgrade the gdal1.11.1 to gdal1.11.2 in synaptic repository and the QGIS
2.8.1 don't work anymore.

1.º attempt:
I try to do a force version of gdal but i only have available the gdal
1.10.1 but even with this version i can't put qgis start to working.

2.º attempt:
Remove completely gdal and qgis but now when i try to install qgis, i have
this error:

Could not mark all packages for installation or upgrade

The following packages have unsolvable dependencies. Make sure that all
required repositories are added and enable in the preferences.

qgis:
 Depends: libgdal.so.1-1.11.1  but it is not installable
 Depends: libqgis-analysis2.8.1 but it is not going to be installed
 Depends: libqgis-core2.8.1 but it is not going to be installed
 Depends: libqgis-gui2.8.1 but it is not going to be installed
 Depends: libqgis-networkanalysis2.8.1 but it is not going to be installed
 Depends: qgis-providers but it is not going to be installed
 Depends: qgis-common but it is not going to be installed

About the repositories i have:

deb-src http://ppa.launchpad.net/ubuntugis/ubuntugis-unstable/ubuntu trusty
main

deb http://ppa.launchpad.net/ubuntugis/ubuntugis-unstable/ubuntu trusty main

deb-src http://ppa.launchpad.net/grass/grass-stable/ubuntu trusty main

deb http://ppa.launchpad.net/grass/grass-stable/ubuntu trusty main


This happens to anyone? How can i fix this?

Regards
João
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