Huge compatibility issues with ATI Mobility Radeon 3450 HD and the OpenSource ATI Driver

[Anthony ROUSSEL]

Binary package hint: xorg

(First, sorry for my bad English, I'm French...)

Tested in Ubuntu 10.04 to 11.04 (x86) and still the same problem.

The problem occurs with an ATI Mobility Radeon HD 3450 and when I start Ubuntu with a LiveCD and with the "nomodeset" option added to the kernel (I add "nomodeset" because otherwise Ubuntu will not start at all, but that's another bug...).

After pressing enter, the Ubuntu splash screen appears.
And when the startup is complete, I hear the Ubuntu startup sound. But there is no output to the monitor.
However, I can access TTY by pressing Ctrl + Alt + F1.

I just expect that xorg start and that something at least appears on the screen.

   Dell Studio 1537
    -> Intel Core 2 Duo Ghz P8400@2.26
    -> ATI Mobility Radeon HD 3450 (RV620)

    -> Ubuntu 11.04 (Natty Narwhal) x86
    -> xorg 1:7.6+4ubuntu3
    -> xserver-xorg-video-radeon 1:6.14.0-0ubuntu4

[Anthony ROUSSEL (roussela2)]

I managed to make a copy of /var/log to a USB key with the file Xorg.log which seems to contain many interesting things about the display.

Some other information :
   -> expected resolution : 1440x900 60hz
   -> screen : 15.4 inch on a laptop

[Anthony ROUSSEL (roussela2)]

Same issue with Ubuntu 11.10 (Oneiric) except that it is a white screen that appears.