Bug 1283176

Summary: Some external displays don't wake up
Product: [Fedora] Fedora Reporter: Viktor Jancik <vjancik>
Component: gnome-shellAssignee: Owen Taylor <otaylor>
Status: CLOSED EOL QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 22CC: fmuellner, hhorak, otaylor
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Hardware: x86_64   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Clone Of: Environment:
Last Closed: 2016-07-19 19:59:22 UTC Type: Bug
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Viktor Jancik 2015-11-18 12:16:25 UTC 
Description of problem:
Placing Lenovo Thinkpad 450s into the Dock results with only some of the external displays waking up. This can be either one of the two, or on rare occasions, none of the two.

How reproducible:
Sometimes

Steps to Reproduce:
1. Place a Thinkpad with running Fedora into a dock, with connected external displays.
2.
3.

Actual results:
Some of the displays wake up sometimes.

Expected results:
All of the displays wake up always.

Additional info:
This issue can be resolved by closing and reopening the lid on the laptop after it's been placed inside the Dock. This usually causes the remaining sleeping external display to wake up.
I know other people who have different hacks around it, like forcing a rerender of the screens using a x11 tool (not sure which one), or just pulling out and plugging in the sleeping display.
Comment 2 Fedora End Of Life 2016-07-19 19:59:22 UTC 
Fedora 22 changed to end-of-life (EOL) status on 2016-07-19. Fedora 22 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no longer maintained, which means that it will not receive any further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.