9.10 tweaks

Hi guys,

so i have made the jump and gone for a full reinstall of 910 using ext 4 on my aspire one. I had been pretty happy with my ubuntu install but having upgraded it several times from 0804 and using ext3 i felt now was the time for a full reinstall.

Pretty much everything seems to work out of the box for 0910, wifi, microphone, webcam, lefthand card reader (right one not tested yet) and the new version does seem nice and polished.

The question i have outstanding in my head is are there any tweaks i can apply to "sharpen" my install? I remember the old
"elevator=noop" tweak discussion under previous versions, swapiness figures and fan tweaks.

Which if any of these are now required? How does grub 2 change any of the tweaks (if at all?).

Thanks for any help,

Andy

 

if you're doing elevator=noop, i'm assuming you have ssd. in that case, i'd forget about having a swap partition. especially with only 8gb. as for the fan control, it is included in the 9.10 kernel now. some tweaks you'll still need are the pciehp...=1 for grub default to have the memory card readers work. i can't think of others right now.

 

Sorry yes i should have said i do have an ssd. Under grub2 i couldnt work out how i should put in the card reader fix or elevator=noop. Anyone had any luck that could give me an idea please?

 

What do you mean about this?

Another tweak If you have 8GB SSD formated to ext4 is removing journaling...
What about the powersaving tweaks? do we needed?

Thanks

 

Anyone???

 

Here is a tweak, to fix slow web browsing you need to set your own dns settings for ipv4.

 

Ubuntu 9.10 has the acerhdf fan control kernel module installed by default. However it shows up in the logs as being disabled.

Type this from the commandline:

Code:

lsmod | grep acerhdf

Make sure that acerhdf is actually loaded (It was for me). You can manually enable the fan module like this:

Code:

sudo sh -c 'echo -n "enabled" > /sys/class/thermal/thermal_zone0/mode'

To make a more permanent solution add this to rc.local:

Code:

 [- w /sys/class/thermal/thermal_zone0/mode ] && echo -n "enabled" > /sys/class/thermal/thermal_zone0/mode

See also this Ubuntu Bug #436768

 

jango, can you give me a bit more detail how to setup those tweaks you listed below please?

Thanks

 

Hi,

When I type "lsmod | grep acerhdf" into a terminal window, nothing happens... and when I try to manually turn on the fan control module I get "sh: cannot create /sys/class/thermal/thermal_zone0/mode: Directory nonexistent". Does anybody have any idea what I'm doing wrong, the fan is driving me mad!!!

Please help!

 

Strange indeed, as acerhdf module is enabled by default on 9.10, at least on UNR... You may try to force load on boot by editing /etc/modules file and adding 'acerhdf' at the end.

 

The method specified here works: viewtopic.php?f=28&t=18427#p106292

 

I'd tried that. Checked what BIOS i was on and turned out to be 3301.... updated to 3310 (which was a bit of a task in itself, bit of a linux noob) and it now works, and i have a fan which switches itself on and off as required- lovely. I'm going to try to get the SD card hot pluggable now, and then probably leave well alone! Thanks

 

What about the powersaving tweaks???

I add that lines to my /etc/rc.local of my AA0 512RAM 8GB SSD with Karmic UNR...

 

What about swapiness.... Anyone?? show me your rc.local

 

Here's mine:

Code:

PATH=/sbin:/usr/sbin:/bin:/usr/bin

. /lib/init/vars.sh
. /lib/lsb/init-functions

do_start() {
	if [ -x /etc/rc.local ]; then
	        [ "$VERBOSE" != no ] && log_begin_msg "Running local boot scripts (/etc/rc.local)"
		/etc/rc.local
		ES=$?
		[ "$VERBOSE" != no ] && log_end_msg $ES
		return $ES
	fi
}

case "$1" in
    start)
	do_start
        ;;
    restart|reload|force-reload)
        echo "Error: argument '$1' not supported" >&2
        exit 3
        ;;
    stop)
        ;;
    *)
        echo "Usage: $0 start|stop" >&2
        exit 3
        ;;
esac

 

does anyone apply the powersaving tweaks to KARMIC???