Help on my Ultra10 Video card

Question

Hello, I am using solaris 9 on my Ultra 10, I just found there is another M64 video card already installed at slot PCI 1, I thought this card should be much better then the default card, so I tried to switch, but seems I can't get it work.
I googled and tried the following approach, but apparently it did not work, the monitor just keep dark when I plug the cable to the new card. please hep
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You need to attach a monitor that will give you video. Then power on the system and stop at the ok prompt.
run below command and look for the path to your video card
show-devs
ex.. /pci@1f,0/pci@1/SUNW,m64B@1
then you need to run
nvalias screen1 /pci@1f,0/pci@1/SUNW,m64B@1
In the above nvalias command screen1 is just an example and you can name it whatever you want as long as it does not conflict with anything shown by the devalias command whcih is run from ok prompt also. Also you video card will not show up as m64@1 if it is not that type of video card. The 1 at the end is what slot you have it in so this also may be different.
then run
setenv output-device screen1
then run
reset
as the system resets move the monitor cable to the new card
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here is the prtdiag output result of my box
bash-2.05$ /usr/platform/sun4u/sbin/prtdiag
System Configuration: Sun Microsystems sun4u Sun Ultra 5/10 UPA/PCI (UltraSPARC-IIi 333MHz)
System clock frequency: 83 MHz
Memory size: 512 Megabytes
========================= CPUs =========================
Run Ecache CPU CPU
Brd CPU Module MHz MB Impl. Mask
0 0 0 333 2.0 12 9.0
========================= IO Cards =========================
Bus# Freq
Brd Type MHz Slot Name Model
0 PCI-1 33 1 ebus
0 PCI-1 33 1 network-SUNW,hme
0 PCI-1 33 2 SUNW,m64B ATY,GT-C
0 PCI-1 33 3 ide-pci1095,646
0 PCI-2 33 1 TECH-SOURCE,gfxp GFXP
No failures found in System
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Answer 1

The information line in your PRTDIAG that says ...
" 0 PCI-1 33 2 SUNW,m64B ATY,GT-C "
is noting the integrated onboard video chipset.
All the PCI-1 items of Ultra-5 and Ultra-10 systems are the integrated functions.
The PCI-2 item, your add-on graphics card, is in an expansion slot.
I think that if you found its barcode paper sticker, you'll see a part number
that begins with 370-3753, for the PGX32 model card that is OEM'd from Techsource.
Even though the card was physically in the system,
there is a vague possibility that the necessary software packages
were never installed when the OS was installed.
If no "drivers", then no functionality.
PRTDIAG would show that it's physically present, but that's all
You'll need your Solaris 9 CD's. In particular, disk #1 of 2.
use pkgadd to install all the TSI... packages.
You could check whether they are present with a ... pkgchk TSI*.
Also glance at this previous forum thread from May 2006:
http://forum.sun.com/jive/thread.jspa?forumID=246&threadID=96909
It includes a link to the installation documentation of the graphics card.