Bug 1283176 - Some external displays don't wake up
Some external displays don't wake up
Product: Fedora
Classification: Fedora
Component: gnome-shell (Show other bugs)
x86_64 Linux
unspecified Severity medium
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Assigned To: Owen Taylor
Fedora Extras Quality Assurance
Depends On:
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Reported: 2015-11-18 07:16 EST by Viktor Jancik
Modified: 2016-07-19 15:59 EDT (History)
3 users (show)

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Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2016-07-19 15:59:22 EDT
Type: Bug
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RHEL 7.3 requirements from Atomic Host:
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Description Viktor Jancik 2015-11-18 07:16:25 EST
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:

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

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 15:59:22 EDT
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no longer maintained, which means that it will not receive any further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

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