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[tpurch <terry.purchase@xxxxxxxx>]

I have same problem as koan. I am using ubuntu 9.10 64-bit.

  SiS driver doesn't detect SIS672 chip so I downloaded SIS671/672
Driver from http://ncc-1701a.homelinux.net/~linux-
sis/index.php?page=Downloads

  I have an ASUS X5DC laptop.  It appears that the reason the modes are
detected is that the laptop screen fails to supply EDID information.
this results in LCD being detected but with max screen size of 0x0 with
pref 0x0.... see xorg entry below:

(--) SIS(0): Detected LCD/Plasma panel (max. X 0 Y 0, pref. 0x0, RGB24)

Xorg then fails to detect any workable screen res....mode pool is empty.
I have tried to set HSync/VRefresh and add Modelines but had no luck.


In Windows 7 the LCD Screen is set as a Generic Monitor...EDID Information is in Registry, it appears that the manufacturer is able to override/fake EDID information  for non-compliant/corrupt EDIDs.   If I plug-in an external EDID Compliant Monitor the Driver works on the external screen but LCD is blank.  Is there away to fake/ignore EDID information like the NVIDIA Driver?

-- 
[needs-packaging] no working driver for sis 671/771 video cards
https://bugs.launchpad.net/bugs/301958
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