Comment 4 for bug 22985

I just built X.org 7.0 on an Acer Ferrari 4005 running Debian AMD64. The
-configure detected the video card (a Radeon Mobility X700 on PCI express), but
after that the screen stays blank. A xev from the network shows mouse and
keyboard events, and Ctrl-Meta-Backspace kills the server, so it is mostly fine,
but the screen is completely blank (not black, off).

On the same system, with Debian X.org 6.8, the fglrx driver works... let's just
say it works, and the vesa driver works in some extents.

Apart from the straightforward parts, the detected xorg.conf shows:

Section "Device"
        #<snip comments of available driver options>
        Identifier "Card0"
        Driver "ati"
        VendorName "ATI Technologies Inc"
        BoardName "Radeon Mobility X700 (PCIE)"
        BusID "PCI:1:0:0"
EndSection

The corresponding lspci output is:

0000:01:00.0 VGA compatible controller: ATI Technologies Inc Radeon Mobility
X700 (PCIE) (prog-if 00 [VGA])
        Subsystem: Acer Incorporated [ALI]: Unknown device 007e
        Flags: bus master, fast devsel, latency 0, IRQ 209
        Memory at c8000000 (32-bit, prefetchable) [size=128M]
        I/O ports at 9000 [size=256]
        Memory at c0100000 (32-bit, non-prefetchable) [size=64K]
        Expansion ROM at c0120000 [disabled] [size=128K]
        Capabilities: [50] Power Management version 2
        Capabilities: [58] #10 [0001]
        Capabilities: [80] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable-
0000:01:00.0 0300: 1002:5653
        Subsystem: 1025:007e

I'll attach the full server log in a comment.

Regards,

--
  Nicolas George