Ubuntu 12.10 Beta 2 wubi black screen

[Marco Giannini]

I have try to install Ubuntu 12.10 Beta 2 with Wubi (rev 270) on a AMD A6
When I reboot the Ubuntu session is black.
Wifi card is on

If i try to install Ubuntu 12.04 i don't have any problem and is all ok.

[Brian Murray (brian-murray)]

Can you also try booting an Ubuntu 12.10 Beta 2 Live CD and see if the screen is black there?

[Marco Giannini (marco-giannini)]

Same problem with live usb

[Brian Murray (brian-murray)]

In which the bug is not with wubi but rather something in the video stack. Do you not see anything at all? Even if you wait a while does the desktop not appear?

Can you try pressing Esc during the boot process and see if you get anything?

Thanks in advance.

[Marco Giannini (marco-giannini)]

If i use a live and chose nomodeset Ubuntu starts.

I try now Kubuntu With wubi installer. If i try to press Esc i have
Normal mode
Safe graphic mode
ACPI workarounds
Verbose mode
Demo mode

but only first time
No one of this mode start installer with wubi

WIth Ubuntu I don't have this options if i press Esc

[Marco Giannini (marco-giannini)]

I added the nomodeset under Normal mode. In doing so the installer started with Wubi, and Ubuntu-Kubuntu. The only problem is that with Kubuntu is a black screen with only the cursor for the entire installation (but this problem also occurs with Kubuntu 12.04).

I want to remember, however, that the bug is only present on the nomodeset Quantal and not on Precise where the installer starts without problems.

I apologize in advance for my English is not very fair