HOWTO : VIA S3 Unichrome Pro problems fixed on Ubuntu 9.04

I have a fanless PC that equipped with VIA CPU and display card namely S3 Unichrome Pro (cx700/vx700). Please check it by issuing the following command :

lspci | grep VGA

I upgraded the fanless PC from Ubuntu 8.10 to 9.04 and encountered the following problems even I fresh installed 9.04. The problems are that the mouse cursor is missing and the resolution is not detected correctly. It runs into 640×480.

However, I fixed those problems by editing the xorg.conf file.

sudo nano /etc/X11/xorg.conf

Add the following lines to the Section Device.

Option "PanelSize" "1024x768"
Option "sw_cursor"

The final looking on the Section is :

Section "Device"
Identifier "Configured Video Device"
Option "PanelSize" "1024x768"
Option "sw_cursor"

Thanks all!

5 Responses

  1. did compiz and 3d works with you

  2. dragonmm2010,

    It is running 2D driver that coming with Ubuntu 9.04. The 3D driver has not been installed and tested as my fanless PC has no enough power to drive the 3D rendering.


  3. Hello Samiux, looks like I have a similar device (500MHz VIA Eden with 1Gb ram, S3 Unichrome Pro, and in my case an 80gb hard drive). Mine is an Aleutia E2.

    I’m about to put your solution to the test with a minimal install of Ubuntu CLI with xorg and dwm.

    When first booting, before X starts, is your terminal output a little too far to the left so you lose a couple of letters?

  4. sohcahtoa,

    My Eden is made in Taiwan. I am using GUI to boot and do not notice the problem as you.


  5. Hello Samiux

    I sorted that out by pressing the ‘auto adjust’ on the LCD for longer than normal, CLI text is fine now.

    I put Debian 5.01 on the Eden, and intially got ‘signal over range’ errors when X started, no display at all. These extra lines in xorg.conf got X working properly.

    Section “Device”
    Identifier “Configured Video Device”
    Option “PanelSize” “1280×1024”

    Section “Monitor”
    Identifier “Configured Monitor”

    Section “Screen”
    Identifier “Default Screen”
    Monitor “Configured Monitor”
    DefaultDepth 24
    SubSection “Display”
    Depth 24
    Modes “1280×1024”

    Debian works a little better than Ubuntu, I think it is ‘thinner’

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