Duncan Webb wrote:
Hi all,
Just wondering is anybody could test something for me because I would
like to eliminate a possible hardware problem.
Don't think that I've a hardware problem any more; installed Windows and
the latest matrox driver and the dualhead stuff worked perfectly. Think
that this is a bug in the matroxfb drivers.
What I need is somebody with either a G400 DualHead or DualHead MAX
and a second monitor to run the following commands and tell me if they
have rubbish or good output on the second monitor.
See this photo http://www.linuxowl.com/images/[EMAIL PROTECTED] for the
output I get.
modprobe matroxfb_maven
matroxset -o 1 128
Turn on the output to the second head
matroxset -f /dev/fb1 -m 2
fbset -fb /dev/fb1 "[EMAIL PROTECTED]"
I get an 1152x864 / 48 Hz Out of range error on second monitor, a bit
strange, possible incorrect dot clock
fbset -fb /dev/fb1 "[EMAIL PROTECTED]"
ioctl FBIOPUT_VSCREENINFO: Invalid argument
fbset -fb /dev/fb1 "[EMAIL PROTECTED]"
gives this image http://www.linuxowl.com/images/[EMAIL PROTECTED]
I'm pretty sure that I'm using the correct commands but something is
wrong.
Redirecting /dev/fb0 to the second head works. with
matroxset -f /dev/fb1 -m 0
matroxset -f /dev/fb0 -m 2
Reset the frame buffer back to the first head
matroxset -f /dev/fb0 -m 0
matroxset -f /dev/fb0 -m 1
/etc/fb.modes is:
mode "[EMAIL PROTECTED]"
# D: 64.994 MHz, H: 48.359 kHz, V: 59.998 Hz
geometry 1024 768 1024 8192 16
This was incorrect should have been
geometry 1024 768 1024 1024 16
timings 15386 160 32 30 4 128 4
accel true
endmode
mode "[EMAIL PROTECTED]"
# D: 108.00 MHz, H: 63.981 kHz, V: 60.02 Hz
geometry 1280 1024 1280 1024 16
timings 9260 248 48 38 1 112 3
hsync high
vsync high
endmode
mode "[EMAIL PROTECTED]"
# D: 25.176 MHz, H: 31.469 kHz, V: 59.942 Hz
geometry 640 480 640 480 32
timings 39721 48 16 33 10 96 2
endmode
mode "[EMAIL PROTECTED]"
# D: 25.176 MHz, H: 31.469 kHz, V: 59.942 Hz
geometry 640 480 640 480 16
timings 39721 48 16 33 10 96 2
endmode
Thanks in advance
Duncan
Wouldn't mind if anybody could give me some feedback. Found this page
that helps identify Matrox Chips
http://www.plasma-online.de/english/identify/picture/matrox.html
Should have mentioned kernel video line:
video=matroxfb:init,vesa:0x117,mtrr,scrollback:0
Regards,
Duncan
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