[maemo-developers] Does anyone know the mechanism in Nokia's LCD driver?

[From: Felipe Contreras]

On Tue, Jan 13, 2009 at 12:05 PM, Igor Stoppa <igor.stoppa at nokia.com> wrote:
> Hi,
> On Tue, 2009-01-13 at 18:06 +0800, ext Huang Gao (Gmail) wrote:
>> Hi, Igor Stoppa:
>>       Thank you for your reply!
>>       So can I understand that this hardware FB is not contained in SDRAM
>> or SRAM, and LCD will refresh itself from this hardware FB by its controller
>> automatically, without the help of OMAP DMA channel?
>
> I'm in no way a display guy but iirc there are 2 modes for refresh:
> -auto: whatever is written to the framebuffer goes through straight to
> the LCD
> -manual: the image needs to be flushed to the LCD
>
> If you are interested, you can check it from the kernel source files.

Would the manual mode help to avoid tearing?

-- 
Felipe Contreras