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.
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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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