Acer Aspire 4720Z on Ubuntu 8.04

LaptopTestingTeam/AcerAspire4720

1. bluetooth
   (記得按面板上的鍵開啟Bluetooth)似乎正常驅動，也掃的到devices，但是連不上去
   https://help.ubuntu.com/community/BluetoothSetup#Troubleshooting
   Couldn't display "obex://[XX:XX:XX:XX:XX:XX]/"
   (not work yet)
   
   
2. modem
3. irda
4. 1394
5. wlan
6. recording sound
   

   Edit the file /etc/modprobe.d/alsa-base, add the following line:
   

   options snd-hda-intel model=acer
   

   由外接mic的聲音破破的，內建的mic根本錄不到聲音(XP ok)
   Gutsy Intel HD Audio Controller
   Ubuntu Question #20970: acer aspire 4720 sound card Intel alc268 mic disfunctional
   

   ---

7. dual monitor
   http://www.intellinuxgraphics.org/dualhead.html
   兩個螢幕同樣輸出
   

   xrandr --output VGA --auto (enable VGA==>只投影)

   延伸桌面
   

   Add the part marked red to /etc/X11/xorg.conf
   

   Section "Screen"
   Identifier      "Default Screen"
   Monitor         "Configured Monitor"
   Device          "Configured Video Device"
           SubSection "Display"
                   Virtual 2560 2560
           EndSubSection
   EndSection

   xrandr -q (List output狀態)
   xrandr --output VGA --left-of LVDS --auto (把VGA放在LVDS左邊)
   xrandr --output LVDS --off (關掉LVDS)
   
   grandr &
   

   
   用grandr的話，在[Layout]裡VGA不能直接放在LVDS的左邊，要先右再左 (直接選在LCD左邊會爛掉)。又，不要去Enable [Hot Key]，會讓shift鍵沒有用。總之用xrandr似乎問題較少
   
   獨立桌面 沒弄出來(可能要改/etc/X11/xorg.conf, 跟crtc, blablabla的有關)
   
   081031
   我還是用grandr設定解析度和layout
   之前爛掉的原因不確定，可能是兩個螢幕的解析度不同所導致的，之前用的是ViewSonic VA905 12:9的螢幕，很難找到個可以搭起來的組合；現在拿到ㄧ台ViewSonic VA1912wb 16:10，4720Z也是16:10，問題就比較少了(-->還是有問題): 解析度差太多顯示也怪怪的，偏偏兩個螢幕沒一個解析度一樣，而且不知道為什麼，toolbar總是出現在外接的螢幕上，目前：
   VGA 1152x864 74.8Hz
   LVDS 1280x768800 60Hz
   出來的效果還可以接受
   
   xrandr --output LVDS --mode 1280x800; xrandr --output VGA --mode 1152x864 --right-of LVDS;
   
   也OK..只是兩個螢幕解析度差太多
   xrandr --output LVDS --mode 1280x800; xrandr --output VGA --mode 1280x1024 --right-of LVDS
   xrandr --output LVDS --mode 1280x800; xrandr --output VGA --mode 1280x960 --right-of LVDS
   
   由於virtual buffer最大只能到2560x2560，設到最大解析度無法左右並列(2720=1440+1280)--那就上下放吧
   xrandr --output LVDS --mode 1280x800; xrandr --output VGA --mode 1440x900 --below LVDS
   
   左右的話，就不能用1440x900
   xrandr --output LVDS --mode 1280x800; xrandr --output VGA --mode 1280x960 --right-of LVDS
   
   
8. sd card reader
9. playing sound
10. webcam
    apt-get install luvcview
    luvcview -f yuv
    
11. CPU Frequency Scaling Monitor
    
    • (right click on panel) -> Add to Panel -> select "CPU Frequency Scaling Monitor"
    • sudo dpkg-reconfigure gnome-applets
      (read all the warning, and if you are sure about this, say yes)
    • killall gnome-panel
      (restart the Panel or only the applet. And then you'll have four frequencies available to control.)
12. Sensor - Temperature Monitoring
    
    • sudo aptitude install lm-sensors sensors-applet hddtemp
      (Install the sensors daemon and applet)
    • sudo sensors-detect
      (say yes to all questions)
    • reboot
    • add the applet "Hardware Sensors Monitor" to Panel
      

HdaIntelSoundHowto
Linux on an Acer Aspire 4720z
Acer 4520 Complete Guide (or Almost) (7.10)
Re: Acer 4520 Complete Guide (or Almost)

The problem of incrementing eth#
This happens because somehow the MAC address is reported to linux in reverse.
To fix this do the following :
(i) dmesg | grep Mac
this gives the mac address in reverse ( a line with Invalid Mac ...)
note that down. that is the mac address in reverse

(ii) sudo nano /etc/udev/rules.d/70-persistent-net.rules
delete any line that ends with NAME="eth#"
add the following line
SUBSYSTEM=="net", DRIVERS=="forcedeth", NAME="eth0"
now save the file

(iii) now do sudo nano /etc/network/interfaces
add the line
pre-up /sbin/ifconfig eth0 hw ether

(iv) now reboot the system