xfree86 4.1.0-15 broken display

["Jeffrey W. Baker" <jwbaker@acm.org>]

[mostly x-posted from debian-user]

I sidegraded to 4.1.0-15 of xfree86 this morning via apt-get, and now my
display is hosed up (again).  I have an ATI Radeon All-in-Wonder with a
Samsung SymcMaster 210T LCD display connected via the DVI connector. 
Before my upgrade, this was working perfectly.  I didn't need any
modelines or anything like that to run the display at 1600x1200, 24-bit
color.  1600x1200 is the native resolution.

Now, when I start the xserver my monitor turns itself off.  I cannot get
it to work in 1600x1200 at all.  The server is in fact running in that
mode, and I can see the timings in /var/log/XFree86.0.log, which look
fine.  But the signal is actually bogus according to the monitor.

I even allowed dexconf to reconfigure the server and that did not
produce a working configuration.

Here are some parts of the current non-working configuration:

Section "Device"
        Identifier      "ATI Radeon All-in-Wonder"
        Driver          "radeon"
EndSection

Section "Monitor"
        Identifier      "Samsung SyncMaster 210T"
        HorizSync       30-81
        VertRefresh     60
        DisplaySize     432 324
#       Option          "DPMS"
EndSection

Section "Screen"
        Identifier      "Default Screen"
        Device          "ATI Radeon All-in-Wonder"
        Monitor         "Samsung SyncMaster 210T"
        DefaultDepth    24
        SubSection "Display"
                Depth           24
                Modes           "1600x1200"
        EndSubSection
EndSection

And here are some snips from the log file:

(--) Chipset ATI Radeon QD (AGP) found
(II) RADEON(0): Supported additional Video Mode:
(II) RADEON(0): clock: 129.4 MHz   Image Size:  518 x 324 mm <= This is bogus, see display size above!
(II) RADEON(0): h_active: 1600  h_sync: 1630  h_sync_end 1680 h_blank_end 1760 h_border: 0
(II) RADEON(0): v_active: 1200  v_sync: 1201  v_sync_end 1204 v_blanking: 1225 v_border: 0
(II) RADEON(0): Ranges: V min: 56  V max: 85 Hz, H min: 30  H max: 81 kHz, PixClock max 150 MHz

Anybody have any clues?  Right now I'm running the monitor at 1280x960
and that is a waste.

-jwb




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