Re: [PATCH 0/2] Add recommended bpp for omap dss2 generic dpi

[Tomi Valkeinen <tomi.valkeinen@ti.com>]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset="windows-1254", Size: 1650 bytes --]

On Wed, 2011-02-16 at 08:06 -0600, Daniel Morsing wrote:
> Hi Tomi
> 
> On Wed, 2011-02-16 at 15:11 +0200, Tomi Valkeinen wrote:
> > Hi,
> > 
> > On Sat, 2011-02-12 at 11:02 -0600, Daniel Morsing wrote:
> > > The panel added is the 4.3 inch display that is sold with the
> > > Devkit8000.
> > 
> > Hmm. Devkit8000's panel is connected with 24 datalines, according to the
> > board file. Why do you want to use 16 bpp format for that?
> > 
> >  Tomi
> > 
> 
> Running the panel at 24 bpp or specifying 16 datalines causes color
> distortion.
> 
> The only way I've been able to run the panel without color distortion,
> is with 24 datalines and 16 bpp.
> 
> I'm not well versed in displays, so I might be making a mistake
> somewhere. The BSP for the devkit8000 doesn't include a datasheet for
> the panel, so I can't look into what's causing this weirdness.

I don't think I'll add a feature which doesn't make sense, to fix a
problem we don't understand =).

A datasheet I found mentions

"One 4.3” TFT LCD (With Touch panel, CHI HSIN LR043JC211 LCD
Model)"

And I found:

http://www.timll.com/chinese/download/files/CHILIN_TECHNOLOGY.pdf

It looks like 24bpp display.

What kind of color distortion do you see? Perhaps the problem is
somewhere else, like wrong horizontal sync, vertical sync or pixel clock
signal setting in .config field. This info should be in the panel
datasheet, but it usually takes some deciphering to understand it =).

 Tomi


--
To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html