Mini2440 Screen Font Size & Power

Pajolo
Hey,
I've been working a good bit with the mini2440 but was wondering if anyone
solved this one.
I've got Friendlyarm's kernel (2.6.32.2) with a minimal fs built using OE.

I've been wondering about two things:
1. In the migration from 2.6.29.x to 2.6.32.2 the font seems to have gotten
bigger, can anyone shed some light? Is the font a kernel setting?

2. The screen powers down after a couple of minutes of no use and I can't
get it to power back on again (no suprise since I'm controlling it via
ethernet or seria), does anyone know how to disable this? Power management
is disabled in my kernel build.

Thanks a lot
Pajolo

Pajolo
Update:
if I plug a usb keyboard into the mini2440 and type the screen comes on
again, so it's definitely a power management thing.
Any ideas on how to kill it?
Thanks

David
Hi


Try this 

echo "1" > /dev/backligth

dm9
echo 0 > /sys/devices/platform/s3c2410-lcd/graphics/fb0/blank

Paul Matteucci
Hey dm9,
can't write to /blank or any other of the files in that folder...
I ve chmodded them, tried overwriting, cat, vi, but nothing.
I'm pretty sure they're in use.
Any ideas?
Thanks

mindee
The keywords is "setterm", please check the FriendlyARM's default Linux ->
etc -> init.d -> RCA, maybe at the last line.

Paul Matteucci
Thanks, but I m using OE and there's no such command.
Is there any way I can set the values manually?
Thanks
Paul

hilt0n
Have you tried 

echo "0" > /sys/devices/platform/s3c2410-lcd/graphics/fb0/blank ?

widyo
this:
=========================
#echo "0" > /sys/devices/platform/s3c2410-lcd/graphics/fb0/blank
=========================
works with me, just to unblanking the screen, and screen will blank again
next 10 minutes.


what i did is, i read this file,
=========================
#cat /sys/module/kernel/parameters/consoleblank
600
=========================
wala.. there is where 10 minutes came from


from this page,
http://fxr.watson.org/fxr/source/Documentation/kernel-parameters.txt?v=l...
then i add consoleblank=0 to my "bootargs" variable in u-boot
this is my NEW bootargs variable value

bootargs=root=/dev/mtdblock3 rootfstype=jffs2 console=ttySAC0,115200
consoleblank=0 mini2440=1tb

this is how i did it;
i type this at u-boot shell-like
=========================
setenv bootargs root=/dev/mtdblock3 rootfstype=jffs2 console=ttySAC0,115200
consoleblank=0 mini2440=1tb

saveenv

reset
=========================


after reboot, i read this file again and got 0
=========================
#cat /sys/module/kernel/parameters/consoleblank
0
=========================

GUTLAK GAN (^_^)7

krumeltee
About the Font Size, Rotation, ...:

http://www.mikrocontroller.net/articles/Mini2440#Framebuffer

stereo_m
When I start my board there is the kernel logo (the tux penguin). Then if I
let the screen shut down after 10 minutes, and power-on the screen again by
typing something on my usb-keyboard/press one of the six buttons on the
board, the kernel logo isn't shown anymore. There is just a black empty
space as big as the kernellogo was, but no logo. If I keep the display on
all the time by typing on the usb-keyboard, the logo will off course stay
there.

So is it in any way possible to do so that the kernel logo would be visible
also when the display is powered on again?

stereo_m
Ideas, anyone?

I think the problem that the tux logo goes away, is that the system will
blank the console after 600 sec, with: 
echo "1" > /sys/devices/platform/s3c2410-lcd/graphics/fb0/blank

That 600 seconds time is set up in
/sys/module/kernel/parameters/consoleblank

Here is some more info: http://friendlyarm.net/forum/topic/1133

So if I could shut down the screen after those 600 sec in some other way
than blanking, I think the logo would still be there. I wouldn't like to
have the screen constantly on as I think it won't last forever, and draws
too much power.