Kde4 issue

Hi,
i work with sun blade 1500 with video card XVR-100 ati radeon chipset.
i've compiled between 4 days kde4 but the server X doesn't start.
this is my output :
---------------------------------------------------------------------------------------------------------------------- 

[CODE]udct-lune# startx
xauth:  file /root/.serverauth.2580 does not exist
xauth: (argv):1:  bad display name "udct-lune:0" in "list" command
xauth: (stdin):1:  bad display name "udct-lune:0" in "add" command


X.Org X Server 1.10.6
Release Date: 2011-07-08
X Protocol Version 11, Revision 0
Build Operating System: NetBSD/sparc64  -
Current Operating System: NetBSD udct-lune 7.0 NetBSD 7.0 
(GENERIC.201509250726Z) sparc64
Build Date: 01 August 2011  01:01:00AM

Current version of pixman: 0.32.6
     Before reporting problems, check http://wiki.X.Org
     to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
     (++) from command line, (!!) notice, (II) informational,
     (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Mon Jun 20 22:20:10 2016
(EE) listPossibleVideoDrivers: trying /dev/fb0
(EE) listPossibleVideoDrivers: trying /dev/fb1
(EE) listPossibleVideoDrivers: trying /dev/fb2
(EE) listPossibleVideoDrivers: trying /dev/fb3
(EE) listPossibleVideoDrivers: trying /dev/fb4
(EE) listPossibleVideoDrivers: trying /dev/fb5
(EE) listPossibleVideoDrivers: trying /dev/fb6
(EE) listPossibleVideoDrivers: trying /dev/fb7
(EE) listPossibleVideoDrivers: trying /dev/fb8
(EE) listPossibleVideoDrivers: trying /dev/fb9
(==) Using default built-in configuration (12 lines)
(EE) RADEON(0): Unable to map MMIO aperture. Invalid argument (22)
(EE) RADEON(0): Memory map the MMIO region failed
(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.
Please also check the log file at "/var/log/Xorg.0.log" for additional 
information.

xinit: giving up
xinit: unable to connect to X server: Connection refused
xinit: server error
xauth: (argv):1:  bad display name "udct-lune:0" in "remove" command
udct-lune#
[/CODE]
--------------------------------------------------------------------------------------------------------

Between reading the post/thread they sayd me with XVR-100 all must work 
fine !!!!

this is the output of /var/log/Xorg.0.log with a tail's command
----------------------------------------------------------------------------------------------
udct-lune# tail /var/log/Xorg.0.log
[  1052.745] (EE) Screen(s) found, but none have a usable configuration.
[  1052.745]
Fatal server error:
[  1052.745] no screens found
[  1052.746]
Please consult the The X.Org Foundation support
      at http://wiki.X.Org
  for help.
[  1052.746] Please also check the log file at "/var/log/Xorg.0.log" for 
additional information.
[  1052.746]
udct-lune#
*----------------------------------------------------------------------------------------------

what happening !

Regards
philo