I think I found the problem but I'm still not 100% sure. Its the "fade to black when blanking" of xscreensaver. When my laptop goes to sleep, it issues lock command which in turn will sometimes will fade the screen. I think its a bug of the fading. I disabled this feature. I'll see if it happens again.
Thanks for your help, Kfir On Mon, Feb 7, 2011 at 12:33 PM, Barney Salter <barney.sal...@quicklink.tv>wrote: > Can you restore the backlight with setpci? > > setpci -s [device id] F4.B=[00-99] > > -----Original Message----- > From: Keith Dart [mailto:ke...@dartworks.biz] > Sent: 07 February 2011 07:30 > To: gentoo-user@lists.gentoo.org > Cc: lavi.k...@gmail.com > Subject: Re: [gentoo-user] CONFIG_DRM_I915_KMS lcd becomes gray after > sleeping > > === On Sun, 02/06, Kfir Lavi wrote: === > > Any thoughts? > > === > > Try also enabling backlight control drivers. > > I also have an Intel laptop and it works fine, and the backlight > controls also work. > > > -- Keith Dart > > -- > > -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > Keith Dart <ke...@dartworks.biz> > public key: ID: 19017044 > <http://www.dartworks.biz/> > ===================================================================== > > > -- > This message was scanned by ESVA and is believed to be clean. > > >