Description of problem: Since last friday (2017-06-23) system update (ask for dnf transaction log if needed) I am having serious problem whenever I dock my T460s laptop (two monitors connected to dock, one DVI, one display-port), problem happens only if I dock running/suspended system, if I reboot while docked everything works same as before. When connected running or woken up X freezes (probably, I can still move with cursor but everything else is frozen) and there is no signal to iether monitor. After few minutes system crashes and force reboots. I am NOT using wayland and my desktop runs xfce4. Version-Release number of selected component (if applicable): kernel.x86_64 - 4.11.6-201.fc25 xorg-x11-server-Xorg.x86_64 - 1.19.3-1.fc25 xorg-x11-drv-intel.x86_64 - 2.99.917-26.20160929.fc25 xfce4-session.x86_64 - 4.12.1-9.fc25 How reproducible: Always Steps to Reproduce: 1. Dock suspended laptop 2. Wake up 3. Wait Actual results: System crashes - force reboots Expected results: System recognizes connected monitors Additional info: After force reboot journalctl contains hundreds of times these two errors: 1. localhost.localdomain kernel: [drm:intel_dp_set_idle_link_train [i915]] *ERROR* Timed out waiting for DP idle patterns 2. localhost.localdomain kernel: [drm:intel_wait_ddi_buf_idle [i915]] *ERROR* Timeout waiting for DDI BUF C idle bit they are appearing alternating 1.-2.-1. ... and sometimes 1.-1.-2.-1. ... about 4-5 times per second before crash. As for crash itself there is only "-- Reboot --" in journalctl; /var/log/messages contains 6795 chars of "^@". Please ask for any other specific info/logs.
Same problem on FC26, regardless if I use Wayland or X.org: $ uname -a Linux jpaulovi.usersys.redhat.com 4.11.11-300.fc26.x86_64 #1 SMP Mon Jul 17 16:32:11 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux $ rpm -qa | grep x11-drv xorg-x11-drv-qxl-0.1.5-3.fc26.x86_64 xorg-x11-drv-intel-2.99.917-28.20160929.fc26.x86_64 xorg-x11-drv-vmware-13.2.1-2.fc26.x86_64 xorg-x11-drv-nouveau-1.0.15-1.fc26.x86_64 xorg-x11-drv-evdev-2.10.5-2.fc26.x86_64 xorg-x11-drv-fbdev-0.4.3-26.fc26.x86_64 xorg-x11-drv-ati-7.9.0-1.fc26.x86_64 xorg-x11-drv-wacom-0.34.2-1.fc26.x86_64 xorg-x11-drv-openchrome-0.5.0-3.fc26.x86_64 xorg-x11-drv-libinput-0.25.1-2.fc26.x86_64 xorg-x11-drv-vesa-2.3.2-26.fc26.x86_64
One more update - if I do a reboot even before re-docking it works normally (with multiple monitors as well). It is not good as workaround since full reboot is still required but maybe it can help with debugging/fixing this.
I am not sure whether this is correctly targeted against intel driver. I have removed the xorg-x11-drv-intel package entirely, thus forcing system to use modesetting driver included in Xorg server and the result are the same errors in log, though modesetting driver seems to handle them better so it does not crash on every re-dock. Please re-evaluate targeting. Thanks
Yes, that was the correct package, please see https://fedoraproject.org/wiki/KernelBugTriage#Video_Subsystem_bugs
This message is a reminder that Fedora 26 is nearing its end of life. Approximately 4 (four) weeks from now Fedora will stop maintaining and issuing updates for Fedora 26. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as EOL if it remains open with a Fedora 'version' of '26'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version. Thank you for reporting this issue and we are sorry that we were not able to fix it before Fedora 26 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora, you are encouraged change the 'version' to a later Fedora version prior this bug is closed as described in the policy above. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete.
Fedora 26 changed to end-of-life (EOL) status on 2018-05-29. Fedora 26 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.