trace system log

here are the steps to trace system log:

• /etc/rc.d/init.d/syslog start
• your commands
• /etc/rc.d/init.d/syslog stop
• more /var/log/messages

the file /home/etc/syslog.conf contains which types of messages would be logged.

bluetooth DUN for some mobiles

for some 3G phones (e.g. LG), if the bt DUN does not work, try the following initialization string:

• ATZ+CGATT=0

this will kill the current active PDP context so that the network/mobile can activate a new one for DUN. remember to cardctl eject and insert after changing the string.

to trace the ppp log, use the file /tmp/bluetooth-pppd-log

wifi compatibility issue

sometimes, the wifi card (Pretec) has problem w/ the DHCP of some wireless router (e.g. Cisco). setting a longer DHCP timeout may help:

• /etc/pcmcia/network.opts
• find the DHCP TIMEOUT and change it to 100

notes for wifi setup

just bought a cf wifi card (pretec wlan) such that i can surf internet w/o using the bt + 3G phone. here is the quick note for the setup:

• the wifi card should be plug-n-play
• add a new wlan network connection => SSID "ANY" is not working and there should be no space for the SSID
• set appropriate SSID and WEP and other settings if required
• click connect and it should fire!

btw, since correct SSID is required, a wlan scanning program is required. i'm using Wellenreiter from http://cacko.biz/cacko/feed. or alternatively, there is a slightly different version at ZUG download page. to use Wellenreiter, here is the step:

• create a dummy network connection (e.g. Wellenreiter) with any ESSID (but not "ANY") and using 802.11 ad-hoc
• set IP addr = 1.1.1.1, subnet mask = 255.255.255.0 and default gateway = 1.1.1.0
• launch Wellenreiter as root
• set the interface to "eth0" and driver to "hostap" in configuration tab

** a problem happened when i reboot the z w/ wifi card plugged. it cannot resume power (one can force power on by using cardctl scheme CardResume but this is no use as I've found that normally it is in suspended state => I guess it's to save battery) and the network connection application could not recognized it. it resumed automatically ???? still a mystery.

quick notes for cacko rom 1.22a upgrade

this serves as a quick upgrade notes:
- cacko rom 1.22 (full) is downloaded from http://www.elsix.org/downloads/cacko-rom-1.22/slc7x0-Qtopia-1.22-1346311204.zip
- backup the original copy
- export all contacts, todos, calendars to Outlook
- copy the password file, wallpapers, dictionaries, notes to SD
- upgrade to rom 1.22
- change the login script for convenience
- load chinese fonts (arial fonts) and linked to helvetica
- program to be re-installed:

• Tree!Explorer Qt
• KO/Pi
• ZEditor
• PDF Viewer
• FreeNoteQt
• JustReader
• ZSafe
• Zaif
• ZBEDic

- ntpdate needed not to be installed as this is already included
- reload back the dictionaries
- save a new chartable for opera
- setup bluetooth pan and ppp; re-install an old version of bluetooth pan plugin in case can't show pan and ppp at the same time
- import back the contacts, calendars and todos
- download and upgrade hotfix a

converting video file for Z

i use MPEG4 Direct Maker to convert video files for MoviePlayer. here are the settings:

• input: mpeg1, 2, rm, rmvb, asf, ....
• output: DivX slow picture
• audio: mp3, stereo 8000Hz, 32kbps
• frame: 320 x 240
• compression control: smoothness
• key frame every 3 sec
• data rate: 1500 kbps

a 2 hrs movie requires about 320MB after conversion. download MPEG4 Direct Maker: http://www.artech365.com

this settings played well in kino2 (version 0.22), with the following settings:

• core: drop frames, direct access to frame buffer
• video: enable double buffering, enable QVGA mode, disable overlay
• audio: ffmpeg

in addition, an optimized mplayer is used to enhance performance. download latest mplayer: http://atty.jp/?atty.jp

here are the steps to replace the mplayer of kino2:

• rm -rf /usr/local/bin/mplayer /usr/local/lib/mplayer /usr/local/etc/mplayer
• ipkg install latest mplayer
• ln -s /opt/QtPalmtop/bin/mplayer /usr/local/bin/
• ln -s /opt/QtPalmtop/etc/mplayer/ /usr/local/etc/
• ln -s /opt/QtPalmtop/lib/mplayer/ /usr/local/lib/

latest version (7 Nov 2004) is mplayer-w100 1.0pre5.2-1

KDE-PIM/Pi

version 1.9.7 is available. when syncing with dtm, the following problems found and solution listed:

• duplicated entry when first sync: move mycalendar.ics as mycalendar.ics.original and sync again
• can't delete the entry in KO/Pi: same as above
• can't sync w/ Outlook: quit KO/Pi and disable Fastload