Radeon blanking broken

Benjamin Herrenschmidt benh at kernel.crashing.org
Fri Jan 14 11:15:36 EST 2005

On Fri, 2004-12-31 at 20:43 +0100, Andreas Schwab wrote:
> The radeonfb blanking rework has broken it on the iBook G3 wit Radeon M6.
> When the X server enables DPMS the backlight stays on and the display gets
> in a strange state, gradually fading off.  When I revert the changes to
> radeon_screen_blank, radeonfb_blank and radeon_set_backlight_enable it
> works again.

This is a real pain actually... I can't seem to find a sequence that
will do proper blanking of the LCD on all models... 

It seems each LCD model need a slightly different set of timings etc...
for the blanking procedure.


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