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Old 11-01-2004, 11:31 AM   #1
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Registered: Oct 2002
Location: Costa Rica
Distribution: Mandrake 10.0
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Fn Keys & Brightness

Hi everyone!

I have Mandrake 10.0 on my Toshiba 5205-s505 running 99%, the 1% left is the problem with the Fn Keys, specially the brightness ones (up - down). I have installed the FnFx, but doesn't work.

Any ideas, i will appreciated so much


Old 11-01-2004, 05:29 PM   #2
Registered: May 2004
Location: Southwestern USA
Distribution: CentOS
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I found that I can type
setbrightness xxx
at the command prompt on my Sony to dim the screen substituting a value, say 150 for xxx. It's part of ACPI, I think. So, you'll need an ACPI kernel installed. Let us know if the same command works on your Toshiba.

Old 11-02-2004, 08:27 AM   #3
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Location: Costa Rica
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Thanks Dennisk, but it don't work at all. I re-compile the kernel undex /usr/src/linux with the toshiba module, but i don't see the module /etc/acpi/toshiba, i don't know if i made the right compilation process.

The FnFx give me the same error, that i don't have the Toshiba ACPI module enable. But really, now i am more confused.

Old 11-16-2004, 10:23 PM   #4
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Registered: Jan 2002
Distribution: Fedora Core
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Here's a script that I use under Fedora Core 2 to control the brightness and fan. It expects that you have /proc/acpi/toshiba, however.


case "$1" in
echo "Setting brightness to low"
echo "Setting fan to auto"

echo "force_on: 0" >$TOSHIBA/fan
echo "brightness: 2" >$TOSHIBA/lcd

echo "Setting brightness to medium"
echo "Setting fan to auto"

echo "force_on: 0" >$TOSHIBA/fan
echo "brightness: 4" >$TOSHIBA/lcd

echo "Setting brightness to high"
echo "Forcing fan on"

echo "force_on: 1" >$TOSHIBA/fan
echo "brightness: 7" >$TOSHIBA/lcd

echo "Usage: $0 (low|medium|high)"
exit 1

Hope this helps.

The hotkeys can be read from /proc/acpi/toshiba/keys I don't know if there's a more efficient way.

Do you have problems with your touchpad being erratic sometimes? Occasionally, when I touch the pad to move the cursor, the mouse pointer jumps across the screen. It's kind of annoying.



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