[gentoo-user] DPMS Not Working on i810

[gentoo-user] DPMS Not Working on i810

[Randy Barlow]

DPMS used to work just find on my laptop in X 6.8-7.0, but when I
upgraded to 7.1, all of a sudden DPMS stopped working.  I've posted the
relevant sections of my xorg.conf to see if anyone has any hints:

Section "ServerLayout"
	...
        #Option        "StandbyTime" "20"
        #Option        "SuspendTime" "40"
        Option         "OffTime" "20"
EndSection

Section "Monitor"
        Identifier   "Monitor0"
        VendorName   "Monitor Vendor"
        ModelName    "Monitor Model"
        Option  "DPMS" "true"
EndSection

It seems to me like this should work, but it doesn't.  Does anyone have
any clues for me?

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[gentoo-user] Re: DPMS Not Working on i810

[Remy Blank]

Randy Barlow wrote:
> DPMS used to work just find on my laptop in X 6.8-7.0, but when I
> upgraded to 7.1, all of a sudden DPMS stopped working.

I've had something similar, where DPMS would work initially, and switch
the screen off after the configured timeout, then switch on again for no
apparent reason after a few minutes and stay on.

What I could find out is that xorg connects to the ACPI daemon and
interprets LID events. In my case (Dell Inspiron 8600 laptop) there are
spurious LID events, e.g. sometimes three "closes" in a row. This made
xorg switch the screen on, but then not switch it off again.

Anyway, the solution for me was to add:

  Option "NoPM"

to the "ServerFlags" section.

-- Remy


Remove underscore and suffix in reply address for a timely response.

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Re: [gentoo-user] Re: DPMS Not Working on i810

[Randy Barlow]

On Tuesday 12 December 2006 03:17, Remy Blank wrote:
> I've had something similar, where DPMS would work initially, and switch
> the screen off after the configured timeout, then switch on again for no
> apparent reason after a few minutes and stay on.
>
> What I could find out is that xorg connects to the ACPI daemon and
> interprets LID events. In my case (Dell Inspiron 8600 laptop) there are
> spurious LID events, e.g. sometimes three "closes" in a row. This made
> xorg switch the screen on, but then not switch it off again.
>
> Anyway, the solution for me was to add:
>
>   Option "NoPM"
>
> to the "ServerFlags" section.

Well, just wanted to write back and say that this sort of seemed to have 
worked.  I'll give it the test of time, but the screen did in fact just turn 
off on its own!  Thanks Remy!

R
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[gentoo-user] Re: DPMS Not Working on i810

[Remy Blank]

Randy Barlow wrote:
> Well, just wanted to write back and say that this sort of seemed to have 
> worked.  I'll give it the test of time, but the screen did in fact just turn 
> off on its own!  Thanks Remy!

Always glad to (sometimes be able to) help.

-- Remy


Remove underscore and suffix in reply address for a timely response.

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Re: [gentoo-user] Re: DPMS Not Working on i810

[Randy Barlow]

On Tuesday 12 December 2006 03:17, Remy Blank wrote:
> Randy Barlow wrote:
> > DPMS used to work just find on my laptop in X 6.8-7.0, but when I
> > upgraded to 7.1, all of a sudden DPMS stopped working.
>
> I've had something similar, where DPMS would work initially, and switch
> the screen off after the configured timeout, then switch on again for no
> apparent reason after a few minutes and stay on.
>
> What I could find out is that xorg connects to the ACPI daemon and
> interprets LID events. In my case (Dell Inspiron 8600 laptop) there are
> spurious LID events, e.g. sometimes three "closes" in a row. This made
> xorg switch the screen on, but then not switch it off again.
>
> Anyway, the solution for me was to add:
>
>   Option "NoPM"
>
> to the "ServerFlags" section.

OK, I am going to resurrect this thread because I am still having problems 
with DPMS on my laptop.  This NoPM option seems to make DPMS work correctly 
for the first time it should work (i.e., it turns the screen off the first 
time).  But if I wake it back up with a mouse or keyboard event, it will 
never turn the screen back off again.  Should I file a bug about this?  With 
gentoo or with Xorg?

R
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