power management problem?

[Xavier Toth]

(**) RADEON(0): RADEONCloseScreen
(**) RADEON(0): RADEONDRIStop
(**) RADEON(0): RADEONDisplayPowerManagementSet(0,0x0)

Backtrace:
0: /opt/X11R6/bin/Xorg(xf86SigHandler+0x7e) [0x80b7c0e]
1: [0x77c420]
2: /opt/X11R6/lib/xorg/modules/drivers//radeon_drv.so(RADEONDisplayPowerManagementSet+0x404)
[0x4fb822]
3: /opt/X11R6/lib/xorg/modules/drivers//radeon_drv.so [0x4e7b6f]
4: /opt/X11R6/bin/Xorg [0x8154a57]
5: /opt/X11R6/bin/Xorg [0x80bcb2c]
6: /opt/X11R6/bin/Xorg [0x80c5519]
7: /opt/X11R6/bin/Xorg [0x812b918]
8: /opt/X11R6/bin/Xorg [0x8152325]
9: /opt/X11R6/bin/Xorg(main+0x511) [0x8070dc1]
10: /lib/libc.so.6(__libc_start_main+0xdc) [0x141f2c]
11: /opt/X11R6/bin/Xorg(FontFileCompleteXLFD+0x1e9) [0x8070071]

Fatal server error:
Caught signal 11.  Server aborting

(**) RADEON(0): RADEONLeaveVT
(**) RADEON(0): RADEONRestore
(**) RADEON(0): RADEONRestoreMode(0x9feba28)
(**) RADEON(0): RADEONRestoreMemMapRegisters() :
(**) RADEON(0):   MC_FB_LOCATION   : 0xffff0000
(**) RADEON(0):   MC_AGP_LOCATION  : 0x003fffc0
(**) RADEON(0):   Map Changed ! Applying ...
(**) RADEON(0):   Map applied, resetting engine ...
(**) RADEON(0): Updating display base addresses...
(**) RADEON(0): Memory map updated.
(**) RADEON(0): Programming CRTC1, offset: 0x00000000
(**) RADEON(0): Wrote: 0x0000003c 0x000301f7 0x00000000 (0x0000a700)
(**) RADEON(0): Wrote: rd=60, fd=503, pd=3
(**) RADEON(0): Ok, leaving now...