Bug 587918 - Monitor doesn't turn on again after it's been suspended
Summary: Monitor doesn't turn on again after it's been suspended
Alias: None
Product: Fedora
Classification: Fedora
Component: xorg-x11-drv-ati
Version: 13
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2010-05-01 14:58 UTC by Espen Stefansen
Modified: 2011-06-27 16:00 UTC (History)
8 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2011-06-27 16:00:35 UTC
Type: ---

Attachments (Terms of Use)

Description Espen Stefansen 2010-05-01 14:58:36 UTC
Description of problem:
I have a r600 ATI card connected to my monitor with DisplayPort-cables. When my monitor goes into suspend, it won't come back on. This happens on and, but not and earlier.

In /var/log/messages i get the following:
Apr 30 16:34:22 localhost kernel: [drm:dp_link_train] *ERROR* clock recovery tried 5 times
Apr 30 16:34:22 localhost kernel: [drm:dp_link_train] *ERROR* clock recovery failed
Apr 30 16:34:22 localhost kernel: [drm:dp_link_train] *ERROR* channel eq failed: 5 tries
Apr 30 16:34:22 localhost kernel: [drm:dp_link_train] *ERROR* channel eq failed

01:00.0 VGA compatible controller: ATI Technologies Inc Mobility Radeon HD 3470

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

Kernels that work:

Kernels that doesn't work:

How reproducible:

Steps to Reproduce:
1. Boot or newer kernels
2. Screensaver turns on
3. Monitor suspends
Actual results:
Won't come back on

Expected results:
Monitor should be turned on again

Additional info:

Comment 1 Espen Stefansen 2010-06-09 18:55:42 UTC
It still doesn't work with these kernels:

For me this makes all kernel-updates useless.

Comment 2 Espen Stefansen 2010-07-11 11:12:35 UTC
Still doesn't work on kernel- :-(

Comment 3 Henry Kroll 2010-09-29 04:34:28 UTC
I have the same problem. Screen is black after suspend. As a workaround I have to press CTRL-ALT-F7 CTRL-ALT-F9, CTRL-ALT-F1 etc. until I get my desktop back.

$ lspci
02:00.0 VGA compatible controller: nVidia Corporation G92 [GeForce 9600 GSO] (rev a2)

Comment 4 Bug Zapper 2011-06-02 14:38:36 UTC
This message is a reminder that Fedora 13 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 13.  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bug reports from releases that are no longer maintained.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 WONTFIX if it remains open with a Fedora 
'version' of '13'.

Package Maintainer: If you wish for this bug to remain open because you
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Comment 5 Bug Zapper 2011-06-27 16:00:35 UTC
Fedora 13 changed to end-of-life (EOL) status on 2011-06-25. Fedora 13 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.

Thank you for reporting this bug and we are sorry it could not be fixed.

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