NVIDIA driver and DPMS: backlight never switches off

[Kenny Gow]

D. D. Brierton wrote:
> On Wed, 2006-01-11 at 20:45 +0000, D. D. Brierton wrote:
> 
>>I am still using version 7676 of the NVIDIA driver because I am stuck on
>>kernel 2.6.13 (Firewire problems with 2.6.14) and Livna aren't building
>>driver updates for the old kernels. If you are using the latest 8178
>>driver maybe I should try building an rpm of it for my kernel from
>>Livna's src rpm and trying again. Are you using 8178?
> 
> 
> Well, I just built and installed the 8178 driver and there is still no
> improvement. The one thing that I didn't mention before is that I have
> in /etc/modprobe.conf the following:
> 
> options nvidia NVreg_SoftEDIDs=0 NVreg_Mobile=0
> 
> as that is necessary to prevent a garbled screen. I know that the NVIDIA
> driver readme says that NVreg_Mobile=1 is the correct setting for Dell
> notebooks but that setting does not prevent the problem. I just went
> back to the NVIDIA forum to check the details of that particular fix.
> It's in this thread:
> 
> http://www.nvnews.net/vbulletin/showthread.php?t=40490
> 
> and in this Livna bugzilla report:
> 
> http://bugzilla.livna.org/show_bug.cgi?id=320
> 
> Interestingly in this message in this related NVIDIA forums thread,
> 
> http://www.nvnews.net/vbulletin/showpost.php?p=566272&postcount=4
> 
> the NVreg_Mobile=0 fix is also reported to break DPMS. Time to nag
> NVIDIA about this again, I guess. Anyway, I seem to have identified the
> cause.
> 
> Best, Darren
> 
You might try adding a block like this to your xorg.conf
and playing with the values that you want.

Section "ServerFlags"
         Option      "BlankTime" "10"
         Option      "StandbyTime" "0"
         Option      "SuspendTime" "15"
         Option      "OffTime" "0"
EndSection

See the man page for xorg.conf to get definitions of these
options.

--Kenny