Bug 1459916 - Desktop freeze when connected to external display on login
Desktop freeze when connected to external display on login
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
x86_64 Linux
unspecified Severity high
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Assigned To: Kernel Maintainer List
Fedora Extras Quality Assurance
Depends On:
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Reported: 2017-06-08 10:32 EDT by Hemant Kumar
Modified: 2017-12-12 05:40 EST (History)
7 users (show)

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Last Closed: 2017-12-12 05:40:42 EST
Type: Bug
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Attachments (Terms of Use)
journalctl log since boot (246.00 KB, text/plain)
2017-06-08 10:32 EDT, Hemant Kumar
no flags Details
hardware information (20.06 KB, text/plain)
2017-06-08 10:33 EDT, Hemant Kumar
no flags Details
output of dmesg (13.06 KB, text/plain)
2017-06-08 10:34 EDT, Hemant Kumar
no flags Details

  None (edit)
Description Hemant Kumar 2017-06-08 10:32:28 EDT
Created attachment 1286172 [details]
journalctl log since boot

Description of problem:

3 out of 5 times if my laptop (T460p) is connected to external display via display port and I reboot the machine, then after login screen the desktop is completely frozen. Also, while the desktop/display is frozen - I am able to SSH to the machine remotely and do my stuff. I have gathered journalctl and dmesg logs via remote SSH when this happened. 

My laptop (Thinkpad T460p) although has Nvidia card - I have noveou module blacklisted and I always use integrated intel graphics.  My external display is a AOC 4K monitor connected via display port.

Version-Release number of selected component (if applicable):

Linux pern 4.11.3-200.fc25.x86_64 #1 SMP Thu May 25 19:03:07 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

How reproducible:

Steps to Reproduce:
1. Connect the laptop to an external display via display port.
2. Reboot the laptop.
3. Enter username & password at login screen and watch the desktop freeze.

Actual results:

Desktop is frozen

Expected results:

Desktop should not be frozen.
Comment 1 Hemant Kumar 2017-06-08 10:33 EDT
Created attachment 1286173 [details]
hardware information
Comment 2 Hemant Kumar 2017-06-08 10:34 EDT
Created attachment 1286174 [details]
output of dmesg

Output of dmesg since boot
Comment 3 Fedora End Of Life 2017-11-16 14:34:32 EST
This message is a reminder that Fedora 25 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 25. 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'
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Comment 4 Fedora End Of Life 2017-12-12 05:40:42 EST
Fedora 25 changed to end-of-life (EOL) status on 2017-12-12. Fedora 25 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.

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