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flamenmars	2008-01-07 , 01:53
Posts: 5 \| Thanked: 0 times \| Joined on Dec 2007	#31

Ok, I managed to flash the new kernel with the Kernel Flasher but I am not sure what to do with the "blset" file.

I do not understand how to execute "chmod" command. I am new to running terminal commands and run a windows machine.

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fanoush	2008-01-07 , 08:42
Posts: 2,152 \| Thanked: 1,490 times \| Joined on Jan 2006 @ Czech Republic	#32

Originally Posted by flamenmars

Ok, I managed to flash the new kernel with the Kernel Flasher but I am not sure what to do with the "blset" file.

Code:

chmod +x blset
./blset 1

You need becomeroot or R&D mode enabled or run it as root.

Also to preset different levels one can use something like

Code:

./blset 1 1
./blset 2 1
./blset 3 8
..

This can be even added to some boot script.

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am_z	2008-01-07 , 13:31
Posts: 6 \| Thanked: 0 times \| Joined on Jan 2006	#33

Thanks, guys, I'll try the latest kernel version...

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bousch	2008-01-08 , 21:31
Posts: 120 \| Thanked: 69 times \| Joined on Nov 2007 @ NL	#34

I haven't flashed this kernel. I just use this script when reading in the dark and it works fine.

Code:

#!/bin/sh
# use gainroot to become root and relaunch itself
if [ `id -u` != 0 ] ; then
#if not already root, call itself as root
TTY=`tty`
[ "$TTY" = "not a tty" ] && unset TTY
exec sudo gainroot <<EOF
if [ -z "$TTY" ] ; then exec $0 $* ; else exec <$TTY $0 $* ; fi
EOF
exit $?
fi
chroot /mnt/initfs dsmetest -l 3
exit

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fanoush	2008-01-08 , 22:01
Posts: 2,152 \| Thanked: 1,490 times \| Joined on Jan 2006 @ Czech Republic	#35

Originally Posted by bousch

I haven't flashed this kernel. I just use this script when reading in the dark and it works fine.

Wow. It was also mentioned by Larry before
http://www.internettablettalk.com/fo...600#post102600
This definitely did set just one of steps already present in brightness applet in OS2006 and 7. I have finally tried it now with OS2008 initfs and this really changes the real value so you can go to the minimum!!

The only problem is that the value does not stick and once you change it in the applet you need to run dsmetest again. But still quite usable.

So now someone could really hack different brightness applet which would set any custom level via dsmetest -l and no ugly kernel hack would be needed :-)

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bousch	2008-01-09 , 22:28
Posts: 120 \| Thanked: 69 times \| Joined on Nov 2007 @ NL	#36

Originally Posted by fanoush

Wow. It was also mentioned by Larry before
http://www.internettablettalk.com/fo...600#post102600

Actually the first part of the script came from a post by you I believe and the dsmetest command came from Larry's post. I'm happy I can read in the dark again. Thanks to you two!

I did not want to flash the kernel because I boot from SD. Or isn't that a problem?

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	dubwise	2008-01-10 , 01:33
	Posts: 239 \| Thanked: 53 times \| Joined on Jan 2008 @ Massachusetts	#37

(noob interrupting)
OK, so where's the gentlest place for a new N810 owner
to learn what scripts are and how to use them, and,
ideally, how to turn them into something I can click on?
(/interrupting)

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fanoush	2008-01-10 , 20:41
Posts: 2,152 \| Thanked: 1,490 times \| Joined on Jan 2006 @ Czech Republic	#38

Originally Posted by bousch

I did not want to flash the kernel because I boot from SD. Or isn't that a problem?

No it is not related and is no problem. But if you are happy with running dsmetest you don't need it. BTW, I am lazy to reflash original kernel, how does it work when display goes off or you have screen dimming enabled? Does it restore your changed level or you need to run dsmetest again?

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	rm_you	2008-01-10 , 22:03
	Posts: 98 \| Thanked: 189 times \| Joined on Jul 2007 @ San Antonio, TX	#39

I made a fairly simple statusbar applet for doing the brightness changes on the modified kernel... You can try it out here:
http://cs.trinity.edu/~acm/debs/adva...klight-0.2.tar
Remember: ONLY USE THIS WITH THE MODIFIED KERNEL! I have heard of it blanking screens on the normal kernel.
To use it, you will need to untar it and then login as root and run the install script. It puts the files in the right places and changes a few permissions that are necessary. You *may* need to open the control panel -> Panels configuration and enable it, or it may just open itself automatically... YMMV.

I'd love to hear some feedback on this... There are a few known issues, however:
Until you first set the brightness with the applet, it does not know the correct current brightness for display purposes (not a big deal, really... just annoying for me). Also, it is not a nice little popdown box like the real brightness applet, it opens a whole new window. If someone knows how to get a HildonControlbar to work inside a GtkMenu, PLEASE tell me. Also, it *will* allow n800 users to set 0 brightness, which will blank the screen, so if you don't know what you are doing, be careful. I will probably be fixing that soon, however.

I'm very fuzzy on exactly what this is even doing, as I just copied the math operations from the blset script, but if someone feels like explaining how I could set the brightness with the dsmetest thing, then I could try to impliment that. I should have the source up in a bit, I'm just going to clean it up first (it's my first GTK app, and it's kind of embarassing at the moment >_>).

Last edited by rm_you; 2008-01-10 at 22:05.

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fanoush	2008-01-10 , 22:38
Posts: 2,152 \| Thanked: 1,490 times \| Joined on Jan 2006 @ Czech Republic	#40

Originally Posted by rm_you

I'm very fuzzy on exactly what this is even doing, as I just copied the math operations from the blset script, but if someone feels like explaining how I could set the brightness with the dsmetest thing, then I could try to impliment that.

Well, you could strace dsmetest and see what it writes to /tmp/dsmesock. See similar reverse-engineered dsme code here
https://garage.maemo.org/plugins/scm...ot=powerlaunch
or otherwise you need to run 'chroot /mnt/initfs dsmetest -l <level>' as root.

As for my kernel patch - it implements translation table for values known to be written to /sys/devices/platform/omapfb/panel/backlight_level by original Nokia applet (or more correctly said - by dsme daemon). Then the kernel fakes that such value is written (and returns it on read so it looks genuine) but it writes custom value to hardware instead. Also the fade effect killing simply ignores other values than those known to be written by the applet so the intermediate states do nothing.

Since values 0-127 are valid for the sys file, manipulation of translation table is done by writing values 128 and up. That's why the formula adds 128.

In your applet you can perhaps change just current level i.e. use 0 as sw level in the formula (and maybe preset dim level too).