[Solved] Re: Fedora 11 does display suspend work for you: CRT vs. LCD

Tony Nelson tonynelson at georgeanelson.com
Tue Aug 4 01:53:26 UTC 2009


Current F11 failing to Suspend the display when the screensaver 
(actually Gnome Power Manager) blanks the screen is a bug in Kernel 
Mode Setting (KMS).  The problem can be demonstrated with xset:

    xset dpms force suspend ; sleep 10 ; xset dpms force on

Disabling KMS with "nomodeset" on the kernel command line allows 
2.6.29.5 and up kernels to Suspend the display just as 2.6.29.4 
kernels can with or without KMS.

Bugzilla <https://bugzilla.redhat.com/show_bug.cgi?id=515316>


On 09-08-01 00:06:25, Tony Nelson wrote:
> On 09-07-30 20:02:46, Tony Nelson wrote:
> > On Fedora 11, does your display suspend after the screensaver 
> > activates (assuming that you have asked it to suspend)?  If you 
> > know whether it does or doesn't, please reply, and say whether 
> > your display is a CRT or LCD.  I'm trying to get more information 
> > before filing a bug.
> 
> It's the kernel.  2.6.29.4-167.fc11.i586 suspend works.  
> 2.6.29.6-213.fc11.i586 no suspend.  I'll narrow it down more later 
> with packages from koji.
> 
> I still don't know what is actually calling DPMS to suspend the 
> display, but I do have it working with the original kernel from the 
> DVD.
> 
> I wish I'd tried the kernel sooner.

-- 
____________________________________________________________________
TonyN.:'                       <mailto:tonynelson at georgeanelson.com>
      '                              <http://www.georgeanelson.com/>




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