Bug 736678 - When Displayport screen goes to sleep. It never wakes up.
Summary: When Displayport screen goes to sleep. It never wakes up.
Alias: None
Product: Fedora
Classification: Fedora
Component: kdebase
Version: 15
Hardware: x86_64
OS: Linux
Target Milestone: ---
Assignee: Ngo Than
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2011-09-08 12:19 UTC by Ryan McGuire
Modified: 2012-08-07 19:02 UTC (History)
8 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2012-08-07 19:02:53 UTC

Attachments (Terms of Use)

Description Ryan McGuire 2011-09-08 12:19:59 UTC
Description of problem:

I have a Lenovo T420 laptop that is connected to a port replicator. There is a LCD monitor connected to the VGA port on the replicator (this the main monitor). I have another LCD monitor connected to the DisplayPort port with a DVI adapter. The screens are set to go to sleep after five minutes. The screen go to sleep, but the monitor on the DisplayPort never wakes up. I have to go to the KDE Display and Adapter settings and disable the monitor; then re-enable the monitor to get it to work.

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

Fedora 15, KDE 4

How reproducible:

This happens every time my screen goes to sleep.
Steps to Reproduce:
1. In KDE, go to system settings.
2. Open Power Management.
3. Pick a profile and change "Screen Energy Saving" to whatever value.
4. Wait for monitors to go to sleep.
Actual results:

Once the screens go to sleep, the monitor connected to the DisplayPort using the DVI adapter will not wake up.

Expected results:

Both monitors will wake up.

Additional info:

Comment 1 Fedora End Of Life 2012-08-07 19:02:55 UTC
This message is a notice that Fedora 15 is now at end of life. Fedora
has stopped maintaining and issuing updates for Fedora 15. It is
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