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Two monitors on a Matrox G450.



A CRT monitor and an IBM flat monitor are connected to a Matrox G450  
adapter.  Both monitors display the command line interface.  With X 
running, the monitor on output 1 is active; the monitor on output 2 
indicates absence of signal.  If the monitors are swapped across the 
output connectors, output 2 continues to indicate absence of a signal 
while output 1 works.  From that I conclude that the monitors are OK.

* Do the following reports help to localize the problem to the video 
adapter or to software?  
* "Failed to get size of gamma for output default"?
* Other ideas?

Thanks,                ... Peter E.

 ========================================= 
peter@joule:~$ lspci -v -s 01:00.0
01:00.0 VGA compatible controller: Matrox Electronics Systems Ltd. MGA G400/G450
 (rev 85) (prog-if 00 [VGA controller])
        Subsystem: Matrox Electronics Systems Ltd. Millennium G450 32Mb SDRAM Du
al Head
        Flags: bus master, medium devsel, latency 32, IRQ 11
        Memory at f2000000 (32-bit, prefetchable) [size=32M]
        Memory at fe9fc000 (32-bit, non-prefetchable) [size=16K]
        Memory at fe000000 (32-bit, non-prefetchable) [size=8M]
        Expansion ROM at fe9c0000 [disabled] [size=128K]
        Capabilities: <access denied>
        Kernel driver in use: matrox_w1

peter@joule:~$ lsmod | grep matrox
matrox_w1              12547  0
wire                   19207  1 matrox_w1
peter@joule:~$ lsmod | grep mga
mga                    26157  1 
drm                   146387  2 mga

peter@joule:~$ xrandr
Can't open display

peter@joule:~$ xrandr -d :0
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 1024 x 768
default connected 1024x768+0+0 0mm x 0mm
   1024x768       87.0*    75.0     85.0     60.0     70.0  
   832x624        75.0  
   800x600        85.0     75.0     72.0     60.0     56.0  
   840x525        60.0  
   700x525        60.0  
   640x512        60.0  
   720x450        60.0  
   640x480        85.0     75.0     67.0     60.0     73.0  
   720x400        70.0     85.0  
   680x384        60.0  
   640x400        85.0  
   576x432        75.0     70.0     60.0  
   640x350        85.0  
   512x384        87.0     85.0     75.0     70.0     60.0  
   416x312        75.0  
   400x300        85.0     75.0     72.0     60.0     56.0  
   320x240        85.0  
   360x200        85.0  
peter@joule:~$ xrandr -d :1
Can't open display :1

 ========================================= 



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Tel +1 360 639 0202   http://carnot.yi.org/   Bcc: peter at easthope. ca


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