Re: [PATCH v2] drm/i915: Fix blank panel at reopening lid

[Daniel Vetter]

On Sat, Aug 11, 2012 at 08:56:42AM +0200, Takashi Iwai wrote:
> When you reopen the lid on a laptop with PCH, the panel suddenly goes
> blank sometimes.  It seems because BLC_PWM_CPU_CTL register is cleared
> to zero when BLC_PWM_CPU_CTL2 and BLC_PWM_PCH_CTL1 registers are
> enabled.
> 
> This patch fixes the problem by moving the call of the function setting
> BLC_PWM_CPU_CTL after enabling other two registers.
> 
> Reported-and-tested-by: Hugh Dickins <hughd@xxxxxxxxxx>
> Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
> ---
> v1->v2: add comments, fixed changelog
Picked up for -fixes, thanks for the patch.
-Daniel
-- 
Daniel Vetter
Mail: daniel@xxxxxxxx
Mobile: +41 (0)79 365 57 48
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/