[Bug 19842] New: [Radeon 9250] Blank screen when GDM starts unless NoDRI option used.

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Jan 30 17:00:18 PST 2009


           Summary: [Radeon 9250] Blank screen when GDM starts unless NoDRI
                    option used.
           Product: xorg
           Version: 7.3
          Platform: Other
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: high
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: bryce at canonical.com
         QAContact: xorg-team at lists.x.org

Blank screen during X boot on Ati Radeon 9250.  Goes away if option NoDRI used.

[Original Report]
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
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.

I found a way to use my system simply putting option NoDRI in xorg.conf: no
signal message doesn't appear anymore but system is slower and desktop effects
don't work.

Best Regards,
Simone Navari.
00:00.0 Host bridge [0600]: VIA Technologies, Inc. K8T800Pro Host Bridge
     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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