Thank you for taking the time to report this bug and helping to make Ubuntu better. Reviewing your dmesg attachment in this bug report it seems that there is a problem with your hardware. I recommend performing a back up and then investigating the situation. Measures you might take include checking cable connections and using software tools to investigate the health of your hardware. In the event that is is not in fact an error with your hardware please set the bug's status back to New. Thanks and good luck!
[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.] ** Tags added: hardware-error ** Changed in: qt4-x11 (Ubuntu) Importance: Undecided => Low ** Changed in: qt4-x11 (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to qt4-x11 in Ubuntu. https://bugs.launchpad.net/bugs/1406742 Title: package kubuntu restricted extras (not installed) failed to install/upgrade: cannot copy extracted data for './usr/lib/i386-linux- gnu/libQtCore.so.4.8.6' to '/usr/lib/i386-linux-gnu/libQtCore.so.4.8.6 .dpkg-new': unexpected end of file or stream Status in qt4-x11 package in Ubuntu: Invalid Bug description: I am not able to instal kubuntu restricted extras. Failure ProblemType: Package DistroRelease: Ubuntu 14.10 Package: libqtcore4 (not installed) ProcVersionSignature: Ubuntu 3.16.0-28.38-generic 3.16.7-ckt1 Uname: Linux 3.16.0-28-generic i686 ApportVersion: 2.14.7-0ubuntu8 Architecture: i386 Date: Wed Dec 31 11:21:57 2014 DuplicateSignature: package:libqtcore4:(not installed):cannot copy extracted data for './usr/lib/i386-linux-gnu/libQtCore.so.4.8.6' to '/usr/lib/i386-linux-gnu/libQtCore.so.4.8.6.dpkg-new': unexpected end of file or stream ErrorMessage: cannot copy extracted data for './usr/lib/i386-linux-gnu/libQtCore.so.4.8.6' to '/usr/lib/i386-linux-gnu/libQtCore.so.4.8.6.dpkg-new': unexpected end of file or stream InstallationDate: Installed on 2014-12-29 (1 days ago) InstallationMedia: Lubuntu 14.10 "Utopic Unicorn" - Release i386 (20141022.1) SourcePackage: qt4-x11 Title: package libqtcore4 (not installed) failed to install/upgrade: cannot copy extracted data for './usr/lib/i386-linux-gnu/libQtCore.so.4.8.6' to '/usr/lib/i386-linux-gnu/libQtCore.so.4.8.6.dpkg-new': unexpected end of file or stream UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/1406742/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp