Comment 71 for bug 301958

Hi Antonio,

To confirm....I have tried the driver on the link you provided...(in fact that was the driver I was trying!) but thanks!

The driver detects the Video Adapter but the integrated LCD panel still doesn't work. when I try to run X screen flashes several times and ends up with Mode Pool Empty. The LCD still detected but says max res 0x0 pref 0x0.

Xorg.log reports:
(EE) Screen(s) found, but none have a usable configuration.

I believe that is due to lack of EDID information for the integrated LCD Screen. Modelines /Modes and HorizSync/VertRefresh lines dont appear to override it.

here is the output from I from get-edid:

get-edid: get-edid version 2.0.0

        Performing real mode VBE call
        Interrupt 0x10 ax=0x4f00 bx=0x0 cx=0x0
        Function supported
        Call successful

        VBE version 300
        VBE string at 0xc2d66 "SiS"

VBE/DDC service about to be called
        Report DDC capabilities

        Performing real mode VBE call
        Interrupt 0x10 ax=0x4f15 bx=0x0 cx=0x0
        Function supported
        Call successful

        Monitor and video card combination does not support DDC1 transfers
        Monitor and video card combination does not support DDC2 transfers
        0 seconds per 128 byte EDID block transfer
        Screen is not blanked during DDC transfer

Reading next EDID block

VBE/DDC service about to be called
        Read EDID

        Performing real mode VBE call
        Interrupt 0x10 ax=0x4f15 bx=0x1 cx=0x0
        Function supported
        Call failed

The EDID data should not be trusted as the VBE call failed
Error: output block unchanged

As I said in my last post if I connect a monitor to VGA port and configure X to use it - the EDID is detected and screen is configured correctly.

Many thanks for your help.