Julien, thank you for reporting this and helping make Ubuntu better. Could you please run the following command once from a terminal by ensuring you have the package xdiagnose installed, and that you click the Yes button for attaching additional debugging information: apport-collect -p xorg 1588899
When reporting xorg related bugs in the future, please do so via the above method. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs. ** Changed in: xorg (Ubuntu) Importance: Undecided => Low ** Changed in: xorg (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1588899 Title: Xorg crash with slack when receiving too many emojis Status in xorg package in Ubuntu: Incomplete Bug description: The following has been reported to slack via their (private) ticketing system. Using slack ("deb https://packagecloud.io/slacktechnologies/slack/debian/ jessie main") and with preferences set to "Message Display => Emoji Style => None: plain text only", a numerous quantity of emojis in a single message sent will crash the system and set you back to the session login screen. This only happens with official "slack" package. "scudcloud" is not / does not seem affected. Definition of "numerous": 399 ":rooster:" emojis sent in a single message is enough to crash the system. To reproduce: install slack via apt above, get someone to punk you with a single line of as many emojis as possible. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: xorg 1:7.7+1ubuntu8.1 ProcVersionSignature: Ubuntu 3.19.0-49.55~14.04.1-generic 3.19.8-ckt12 Uname: Linux 3.19.0-49-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.21 Architecture: amd64 CurrentDesktop: XFCE Date: Fri Jun 3 17:53:06 2016 InstallationDate: Installed on 2015-11-02 (214 days ago) InstallationMedia: Xubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805) SourcePackage: xorg Symptom: display Title: Xorg crash UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1588899/+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