VESA driver does not seem to work with DPMS

Rene Rebe rene at
Wed Feb 18 02:39:58 PST 2009

On 18.02.2009, at 05:28, Kan-I Jyo wrote:

> Dear list,
> On one of my machines it is loaded with 7.1 with vesa driver  
> 1.2.1.
> In order to reduce the power consumption, it is set in xorg.conf to  
> turn off
> the monitor if in idle for a period of time(10 minutes here).
> However, if using vesa driver, the setting does not seem to work  
> while it
> takes effect when switching to the intel driver.
> At the same time, the "$ xset dpms force standby" command brings the
> monitor into standby mode with intel driver while it triggers no  
> difference
> with the vesa driver.
> Is is a know limitation of the vesa driver or it is fixed in a  
> recent version?
> Any comment would be greatly appreciated.

The xf86-video-vesa driver does implement DPMS (according to the
code), however the actual availability and functionality depends on your
card's BIOS, so it might often not be available or simple be defunct.

   René Rebe - ExactCODE GmbH - Europe, Germany, Berlin | |

More information about the xorg mailing list