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: gnome-user-docs (Ubuntu) Importance: Undecided => Low ** Changed in: gnome-user-docs (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-user-docs in Ubuntu. https://bugs.launchpad.net/bugs/1812412 Title: package gnome-user-guide 3.8.2-1ubuntu0.1 failed to install/upgrade: unable to read link `./usr/share/help/pt_BR/gnome-help/mouse- middleclick.page': Input/output error Status in gnome-user-docs package in Ubuntu: Invalid Bug description: no puedo actualizar ProblemType: Package DistroRelease: Ubuntu 14.04 Package: gnome-user-guide 3.8.2-1ubuntu0.1 ProcVersionSignature: Ubuntu 4.4.0-141.167~14.04.1-generic 4.4.162 Uname: Linux 4.4.0-141-generic i686 ApportVersion: 2.14.1-0ubuntu3.29 Architecture: i386 Date: Fri Jan 18 10:01:45 2019 DuplicateSignature: package:gnome-user-guide:3.8.2-1ubuntu0.1:unable to read link `./usr/share/help/pt_BR/gnome-help/mouse-middleclick.page': Input/output error ErrorMessage: unable to read link `./usr/share/help/pt_BR/gnome-help/mouse-middleclick.page': Input/output error InstallationDate: Installed on 2019-01-17 (1 days ago) InstallationMedia: Ubuntu 14.04.5 LTS "Trusty Tahr" - Release i386 (20160803) PackageArchitecture: all RelatedPackageVersions: dpkg 1.17.5ubuntu5.8 apt 1.0.1ubuntu2.18 SourcePackage: gnome-user-docs Title: package gnome-user-guide 3.8.2-1ubuntu0.1 failed to install/upgrade: unable to read link `./usr/share/help/pt_BR/gnome-help/mouse-middleclick.page': Input/output error UpgradeStatus: Upgraded to trusty on 2019-01-18 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-user-docs/+bug/1812412/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp