[PATCH] drm/i915: Revive combination mode for backlight control

Linus Torvalds torvalds at linux-foundation.org
Thu Mar 10 17:28:25 PST 2011

On Thu, Mar 10, 2011 at 5:23 PM, Indan Zupancic <indan at nul.nu> wrote:
> After this patch, combined with my new patch
> "drm/i915: Fix DPMS and suspend interaction for intel_panel.c"
> all known backlight problems should be fixed.

Btw, can you repost that one as a new email (and cc keithp too)? I
think it got hidden in the other thread by different subject line.

Jesse, did you take a look at that one? It was in the thread with a
subject like "[PATCH] fix backlight brightness on intel LVDS panel
after reopening lid".

Search for

  When suspending intel_panel_disable_backlight() is never called,
  but intel_panel_enable_backlight() is called at resume. With the
  effect that if the brightness was ever changed after screen
  blanking, the wrong brightness gets restored at resume time.

in your mailbox.


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