It may be the driver, not ACPI. Seriously, email the maintainers of your graphics driver. --Andy On Aug 26, 2012 7:50 PM, "William Cohen" <giantklein@xxxxxxxxx> wrote: > Hi Richard, > > I don't have a means of preventing screen blanking. My machine doesn't > have windows installed on it and I don't have an easy way of seeing what > acpi commands the windows code is using. Maybe some of the tools such as > http://msdn.microsoft.com/en-us/windows/hardware/gg463009.aspx might > provide some insight into what magic acpi call is being used to keep the > screen on. > > -Will > > > ------------------------------ > *From:* Richard Hughes <hughsient@xxxxxxxxx> > *To:* argyllcms@xxxxxxxxxxxxx > *Sent:* Friday, August 24, 2012 11:31 AM > *Subject:* [argyllcms] Re: Lenovo ThinkPad W530 Colorimeter > > On 23 August 2012 01:26, William Cohen <giantklein@xxxxxxxxx> wrote: > > I found /sys/module/i915/parameters/panel_ignore_lid . I tried setting > it to > > 1 and then activating the switch. It didn't seem to make a difference. > The > > screen still blanked. > > If you find out, let me know and I'll add support for setting the > correct thing in gnome-color-manager. > > Thanks, > > Richard. > > > >