greetings! So.. what exactly is this "evdi" that you were mentioning? I just returned the laptop from a few hours unattended (did not suspend, just lock / walk away) and was greeted by flickering, this time only a part of the screen but all the time.
the flicker that I usually see is short, then results in a black screen for 2-10 seconds, then it's all good again. This time, it was ongoing and the syslog was full of those: mrt 21 21:32:12 moya kernel: evdi: [D] evdi_detect:94 (dev=0) poll connector state: disconnected mrt 21 21:32:12 moya kernel: evdi: [D] evdi_detect:94 (dev=0) poll connector state: disconnected mrt 21 21:32:12 moya kernel: evdi: [D] evdi_detect:94 (dev=0) poll connector state: disconnected mrt 21 21:32:12 moya kernel: evdi: [D] evdi_detect:94 (dev=0) poll connector state: disconnected mrt 21 21:32:12 moya kernel: evdi: [D] evdi_detect:94 (dev=0) poll connector state: disconnected mrt 21 21:32:12 moya kernel: evdi: [D] evdi_detect:94 (dev=0) poll connector state: disconnected mrt 21 21:32:12 moya kernel: evdi: [D] evdi_detect:94 (dev=0) poll connector state: disconnected mrt 21 21:32:12 moya kernel: evdi: [D] evdi_detect:94 (dev=0) poll connector state: disconnected undock > dock and all was good again. still can't correltate the event.. sometimes hours pass without a flicker, then 10 per hour. anything else I can do/test? thanks for any hints Andreas -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1920036 Title: [DisplayLink] screen flicker on gnome with t450s with ultra dock Status in mutter package in Ubuntu: Incomplete Bug description: picture on monitor connected to DisplayPort flickers occasionally. between 1 and 20 times per hour. searched for similar bugs or problems, related to docking station. Does not happen when using laptop standalone / connect screen manually. DisplayLink Driver is installed/compiled from official website. whenever the flickering happens, this appears in log: "libinput error: client bug: timer event20 debounce short: scheduled expiry is in the past (-10ms), your system is too slow" anything I can contribute? fix? I tried to get daily builds of intel-driver but that broke wayland/gdm so I rolled back. only link I could find that seems relevant is https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1572667 - which expired. thanks Andreas ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: mutter 3.36.7+git20201123-0.20.04.1 ProcVersionSignature: Ubuntu 5.8.0-45.51~20.04.1-generic 5.8.18 Uname: Linux 5.8.0-45-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.16 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: GNOME Date: Thu Mar 18 16:18:08 2021 InstallationDate: Installed on 2021-03-13 (5 days ago) InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1) SourcePackage: mutter UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1920036/+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
