X doesn't work anymore

[Kurt Schreiner <ks%ub.uni-mainz.de@localhost>]

Hi,

after cvs updat'ing to -current as of Jul  9 23:52 MEST X fails to start.
Here's what /var/log/Xorg.0.log has to say on this (problem is the same with
and without /etc/xorg.conf):

[...]
        ATI Radeon 3100 Graphics, ATI Radeon HD 3300 Graphics,
        ATI Radeon HD 3200 Graphics, ATI Radeon 3000 Graphics,
        ATI Radeon HD Graphics, ATI Radeon Graphics,
        ATI Mobility Radeon HD Graphics, ATI Mobility Radeon Graphics,
        ATI Radeon Graphics
(II) VESA: driver for VESA chipsets: vesa
(II) Primary Device is: PCI 01@01:00:0
(II) resource ranges after xf86ClaimFixedResources() call:
        [0] -1  0       0x000f0000 - 0x000fffff (0x10000) MX[B]
        [1] -1  0       0x000c0000 - 0x000effff (0x30000) MX[B]
        [2] -1  0       0x00000000 - 0x0009ffff (0xa0000) MX[B]
        [3] -1  0       0x0000ffff - 0x0000ffff (0x1) IX[B]
        [4] -1  0       0x00000000 - 0x000000ff (0x100) IX[B]
(WW) Falling back to old probe method for vesa
(II) resource ranges after probing:
        [0] -1  0       0x000f0000 - 0x000fffff (0x10000) MX[B]
        [1] -1  0       0x000c0000 - 0x000effff (0x30000) MX[B]
        [2] -1  0       0x00000000 - 0x0009ffff (0xa0000) MX[B]
        [3] 0   1       0x000a0000 - 0x000affff (0x10000) MS[B]
        [4] 0   1       0x000b0000 - 0x000b7fff (0x8000) MS[B]
        [5] 0   1       0x000b8000 - 0x000bffff (0x8000) MS[B]
        [6] -1  0       0x0000ffff - 0x0000ffff (0x1) IX[B]
        [7] -1  0       0x00000000 - 0x000000ff (0x100) IX[B]
        [8] 0   1       0x000003b0 - 0x000003bb (0xc) IS[B]
        [9] 0   1       0x000003c0 - 0x000003df (0x20) IS[B]
(II) RADEON(0): TOTO SAYS 00000000a8100000
(II) RADEON(0): MMIO registers at 0x00000000a8100000: size 64KB
(EE) RADEON(0): Unable to map MMIO aperture. Invalid argument (22)
(EE) RADEON(0): Memory map the MMIO region failed
(II) UnloadModule: "radeon"
(EE) Screen(s) found, but none have a usable configuration.

Fatal server error:
no screens found

Please consult the The X.Org Foundation support
         at http://wiki.X.Org
 for help.

Any idea where's the culprit?

Kurt