Debian Hardware :: Wheezy - GMA500 Black Screen After Loading Ramdisk

I have just installed Debian Wheezy on an E6XX Intel platform and after loading ramdisk, the screen goes black and I cannot use the system.

*) In the beginning, I tried to pass "nomodeset" in Grub, but after loading ramdisk, it tries to change screen's resolution and it goes blank.
*) gma500 output in dmesg can be seen in [1] at the bottom of this page.
*) I tried passing "GRUB_GFXMODE=640x480
GRUB_GFXPAYLOAD_LINUX=640x480" + update-grub, but it keeps failing.
*) I examined EDI's monitor output through "sudo get-edid |sudo parse-edid" (see [2] below), it seems that it is not possible to get the EDID information from the screen correctly. However, I am using this screen with xrandr with Debian Squeeze and I have no problems.

>>>>>>>>>>>>>>>>> [1] dmesg about "gma500"
[ 10.164297] gma500 0000:00:02.0: setting latency timer to 64
[ 10.164325] gma500 0000:00:02.0: Enabling MSI failed!
[ 10.164923] [drm] internal display is MIPI display
[ 10.167632] gma500 0000:00:02.0: VBT signature missing
[ 10.167828] Stolen memory information
[ 10.167840] base in RAM: 0x3f800000

[Code] ....

The EDID data should not be trusted as the VBE call failed
Error: output block unchanged
parse-edid: IO error reading EDID