** Description changed:

  Binary package hint: xserver-xorg-video-ati
  
  I've a problem using Ati Radeon 9250 on Ubuntu 8.04 with open source driver: 
very often, after splash screen monitor shows me "no signal" message and it 
goes to standby mode. I checked Xorg.0.log when xserver starts correctly and 
when it doesn't and I've seen two differences:
  1) Some memory area (Ring, GART, Vertex buffers,etc...) are mapped to 
different addresses
  2) When "no signal" message is shown log ends with 
  
  (II) RADEON(0): no multimedia table present, disabling Rage Theatre.
  
  while when X starts without problems the log  continues.
  
  I attach Xorg.0.log in both cases: working and bugged, and my xorg.conf.
  
  Best Regards,
  Simone Navari.
+ [lspci]
+ 00:00.0 Host bridge [0600]: VIA Technologies, Inc. K8T800Pro Host Bridge 
[1106:0282]
+       Subsystem: ASUSTeK Computer Inc. A8V Deluxe [1043:80a3]
+ 01:00.0 VGA compatible controller [0300]: ATI Technologies Inc RV280 [Radeon 
9200 PRO] [1002:5960] (rev 01) (prog-if 00 [VGA controller])
+       Subsystem: Giga-byte Technology Unknown device [1458:4054]

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No signal to monitor in 8.04 with Ati Radeon 9250 and open source driver
https://bugs.launchpad.net/bugs/293698
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