Bug 515316

Summary: DPMS (Suspend, Off, On) doesn't work if Kernel Mode Setting (KMS) enabled
Product: [Fedora] Fedora Reporter: Tony Nelson <tonynelson>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED WONTFIX QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: low    
Version: 11CC: c.shoemaker, itamar, kernel-maint, rhughes
Target Milestone: ---   
Target Release: ---   
Hardware: i586   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2010-06-28 13:58:08 UTC Type: ---
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Embargoed:

Description Tony Nelson 2009-08-03 17:19:41 UTC
Description of problem:
DPMS Suspend works with Kernel Mode Setting (KMS) On in 2.6.29.4 kernel but not in later 2.6.29.5 or 2.6.29.6 kernels; it works with all those kernels if KMS if off.  Gnome Power Manager can't Suspend the display nor can `xset dpms force suspend` (or "off") if booted without "nomodeset in kernels after 2.6.29.4.

This is on an old ASUS A7V-133 MB, Athlon 1.2GHz, 768MB, ATI Technologies Inc Radeon RV100 QY [Radeon 7000/VE] rev 0, on a Princeton EO930 CRT display.

Version-Release number of selected component (if applicable):
kernel-2.6.29.6-213.fc11.i586
kernel-2.6.29.5-208.fc11.i586
(and other nearby kernels from Koji)

How reproducible:
always

Steps to Reproduce:
1. boot affected kernel without nomodeset
2. `xset dpms force suspend`
3. boot unaffected kernel or affected kernel with nomodeset
4. `xset dpms force suspend`
  
Actual results:
2. No change to display
4. Display Suspends

Expected results:
Display is Suspended to low power mode.

Additional info:
Note the ATI Radeon RV100 and the CRT display.

Comment 1 Bug Zapper 2010-04-28 09:31:47 UTC
This message is a reminder that Fedora 11 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 11.  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bug reports from releases that are no longer maintained.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 '11'.

Package Maintainer: If you wish for this bug to remain open because you
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to a later Fedora version prior to Fedora 11's end of life.

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Comment 2 Chris Shoemaker 2010-05-01 15:03:10 UTC
I seem to have the same problem with:

kernel-2.6.32.11-99.fc12.x86_64
00:02.0 VGA compatible controller: Intel Corporation Pineview Integrated Graphics Controller (rev 02)

I suggest bumping version to Fedora 12

Comment 3 Bug Zapper 2010-06-28 13:58:08 UTC
Fedora 11 changed to end-of-life (EOL) status on 2010-06-25. Fedora 11 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.