2009年11月17日 星期二

emacs and slime

Slime menu didn't work with my new CR400 system.

Toggle the tool bar by:
M-x tool-bar-mode
will solve the problem.

Linux wifi Driver for CR400

Suddenly remember Debian sid did not install the correct wifi driver.
This web address may come handy:
http://forum-en.msi.com/index.php?action=printpage%3Btopic=128640.0

In a nut shell, install Ralink RT3090 linux driver from http://www.ralinktech.com/

Nvidia System Tools 6.05

Nvidia System Tools can get a few Hz out of my CR400. Also the shades can be overclocked. However, I seem to lost wifi and the system seems to be less stable. I uninstalled it.

2009年11月16日 星期一

Overclock and Undervolt T4200

Hard mod steps:

1. open the case
2. remove heat sink
3. remove CPU
4. use thin copper wire to connect the VID4 pin hole to VCC hole of the socket (undervolt 0.2V)
this is a bit hard because they are a few pin holes apart
5. again use thin copper wire to connect BSEL1 to VSS (overclock to 266)
this is easy as the holes are next to each other
6. put back everything

for the location of the pin holes refer to
http://forum.notebookreview.com/showthread.php?t=390696 has the photo for VIDs of socket p which T4200 use.
and
http://www.xtremesystems.org/forums/showthread.php?t=223849 has the table for BSEL1
I believe this mod also work with T6 series

After mod with RMclock undervolt the cpu temp is really cool when idle at 1.6G. I think the ambient temp was about 16c


Under full load at 2.66G


Notes: I think this only works for non Intel chipset

Nvidia chipset, Win7, Dim and Turn off display setting

After upgrade to win7, the auto dim and turn off display power management don't work. Found the following solution:

  1. In device manager click into Network adapters
  2. Right click NVIDA nForce Network Network Controller
  3. Click the Advanced tab and disable Wake on Magic Packet and Wake on pattern match (not sure if this needs disabling)
  4. Make sure in the Power Management tab the Allow this device to wake the computer is not selected
  5. Reboot

I would love the the auto screen off to work when playing mp3s with media player! VLC has no problem with auto dimming and screen off.

2009年11月12日 星期四

Windows 7 upgrade and Grub2

Windows 7 upgrade destroy the grub2 boot loader.
Solution from http://www.ubuntu-inside.me/2009/06/howto-recover-grub2-after-windows.html#comment-form

In my case, Debian sid
  1. use net install CD to boot and install until partitioning hard disk.
  2. press Alt + F2 to get console
  3. use fdisk -l to check linux location (sda5 in my laptop)
  4. mount /dev/sda5 /mnt
  5. mount --bind /dev /mnt/dev
  6. mount --bind /proc /mnt/proc
  7. cp /etc/resolv.conf /mnt/etc/resolv.conf
  8. chroot /mnt
  9. grub-install /dev/sda
  10. reboot
Done!