<div class="gmail_quote">2010/8/15 Georgi Kourtev <<a href="mailto:gkourtev@gmail.com">gkourtev@gmail.com</a>> <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> Hi all, After being back from vacation, I decided to go for the 4.5 update. Meanwhile I got KPackage message for other bugfixes and updates. Without thinking, I added the 4.5 repository and started the update. What happened is that KPackage removed some tens of packages (I don't know which), and did not installed some 100+ others. After restarting (as the new Linux kernel was installed), I have a black screen with mouse pointer in the middle; no further actions. I started recovery mode and dpkg showed some broken packages that were repaired. However, still a black screen. My suggestion is that due to KPackage earlier removal of some packages, I have a bunch not installed. Is that correct and if so what can I do? Any ideas/help is appreciated as this happened on my main production machine which is now useless. Thanks. gk </blockquote></div> After some sleepless hours I found a solution: 1. Logged in. Press Ctrl+Alt+F1 (went to terminal) 2. sudo apt-get update 3. sudo apt-get install kubuntu-desktop 4. Restart More or less the same as described in this bug: <a href="https://bugs.launchpad.net/kubuntu-ppa/+bug/615865">https://bugs.launchpad.net/kubuntu-ppa/+bug/615865</a>