nanogui: nano-X with 8 bit greyscale
Subject:
Re: nano-X with 8 bit greyscale
From:
"Jordan Crouse" ####@####.####
Date:
3 Apr 2006 15:34:35 +0100
Message-Id: <20060403150605.GB18568@cosmic.amd.com>
On 02/04/06 07:34 +1000, James Steward wrote:
> Hi folks,
>
> I'm rather fresh to nano-X and GUI programming, so please excuse my
> ignorance. I will learn given half a chance though!
>
> We have an ARM based custom board that has its LCD controller connected
> 4bits to a 320x240 mono lcd, setup for 8 bit palette.
>
> If I manually set all 256 entries in the palette and cat a tux 8bit
> greyscale image to /dev/fb0 it looks fine.
>
> When I start nano-X I see it saves and sets the first 16 color map
> entries, not the entire 256 entry color map. Why is this? Shouldn't it
> use the whole palette? Did I compile it with wrong options?
If you are using the framebuffer, everything Nano-X knows comes from
the kernel framebuffer driver. It sounds like your driver is reporting that
it is in 4 bit mode. Run 'fbset' to make sure that the framebuffer driver
is reporting all the information correctly (width, height, bit depth, etc,
etc).
> Will nano-X run over a network as X11 does? Will it be happy with a tcp
> connection? If so, what do I need to tell it (command line or config
> file??) to allow connections forwarded via ssh?
Nano-X will not run over a network out of the box, but there are patches
available that will enable that for you. Where, I can't remember, but
I'm sure somebody else on the list will point you in the right direction.
Jordan
--
Jordan Crouse
Senior Linux Engineer
AMD - Personal Connectivity Solutions Group
<www.amd.com/embeddedprocessors>
