MK802 Lubuntu Change Resolution

MK802 Lubuntu Change Resolution 1080p to 720p ( Linaro 12.07 by Toby)
1. Install change resolution A10 or "Utility to control A10 displays"  from  Jeff@doozan.com

root@linaro-alip:~# wget http://download.doozan.com/a10/a10_display

root@linaro-alip:~# chmod +x a10_display

root@linaro-alip:~# cp a10_display /usr/local/bin

root@linaro-alip:~# a10_display

a10_display <hdmi|vga|tv|lcd> <on|off|mode> [mode_number]

root@linaro-alip:~# a10_display hdmi mode 5

root@linaro-alip:~# a10_display hdmi mode 10

 

Mode 5 = 720p x 60hz   1280x720

root@linaro-alip:~# gtf 1920 1080 60

 # 1920x1080 @ 60.00 Hz (GTF) hsync: 67.08 kHz; pclk: 172.80 MHz

 Modeline "1920x1080_60.00"  172.80  1920 2040 2248 2576  1080 1081 1084 1118  -HSync +Vsync

Mode 10 = 1080p x 60hz  1920x1080

root@linaro-alip:~# gtf 1280 720 50

 # 1280x720 @ 50.00 Hz (GTF) hsync: 37.05 kHz; pclk: 60.47 MHz

 Modeline "1280x720_50.00"  60.47  1280 1328 1456 1632  720 721 724 741  -HSync +Vsync

2. Add  LXDE Desktop resolution mode  by xrandr command

root@linaro-alip:~# xrandr --newmode "1280x720_60.00"  74.48  1280 1336 1472 1664  720 721 724 746 $

root@linaro-alip:~# xrandr --addmode LCD 1280x720_60.00

root@linaro-alip:~/Downloads# xrandr

Screen 0: minimum 640 x 480, current 1280 x 720, maximum 2048 x 2048

LCD connected 1280x720+0+0 0mm x 0mm

  1920x1080      60.0  

  1280x720_60.00   60.0*

3. Change Desktop resolution and HDMI resolution command
        Change Desktop resolution by command

root@linaro-alip:~# xrandr --output LCD --mode 1280x720_60.00

         Cheange Desktop resolution whit gui. Install lxrandr and menut Prefrent > Monitor Setting

root@linaro-alip:~# apt-get install lxrandr

 

        Change HDMI A10 Resulotion mode 5

root@linaro-alip:~# a10_display hdmi mode 5

4.  Auto resolution from start LXDE etc/xdg/lxsession/Lubuntu/autostart

root@linaro-alip:~# vi /usr/local/bin/a10_res720p

#/bin/sh

xrandr --newmode "1280x720"  74.48  1280 1336 1472 1664  720 721 724 746 $

xrandr --addmode LCD 1280x720

xrandr --output LCD --mode 1280x720

a10_display hdmi mode 5

root@linaro-alip:~# chmod +x /usr/local/bin/a10_res720p

root@linaro-alip:~# vi /etc/xdg/lxsession/Lubuntu/autostart

@lxpanel --profile Lubuntu @xscreensaver -no-splash @xfce4-power-manager @pcmanfm --desktop --profile lubuntu @/usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1

@/usr/local/bin/a10_res720p

5. try restart

root@linaro-alip:~# reboot

Resource Link

• http://askubuntu.com/questions/95977/set-a-specific-screen-resolution-with-xrandr
• http://forum.doozan.com/read.php?6,9002
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