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Video cards
 2005, QNX Software Systems Ltd.
2
Clear the modes file. From the command line type:
crttrap clear
3
Restart your system and try to detect your video card
again.
The crttrap program hangs.
If crttrap hangs (i.e. it doesn’t start Photon and leaves you
with a black screen), try the following:
1
Restart the system and boot into safe mode (don’t start
Photon).
2
Ensure that your graphics card is supported.
3
Clear the modes file. From the command line type:
crttrap clear
4
Restart your system and try to detect your video card
again.
If this fails, clear the modes file, but don’t restart the system.
Then run crttrap manually from the command line with the
verbose option:
crttrap trap -VVVVV
If crttrap hangs again, you should be able to see where it
failed or what the last adapter it tried to detect was. If you can
determine the adapter that it failed to trap, remove it from the
trap list by editing
/etc/system/config/graphics-traplist.
The list that’s generated comes from the enumerators, so you
might have to change the enumerators so they no longer detect
the card in your system, (e.g. if you have two video cards in
your system). You can find the enumerators in
/etc/system/enum/devices/graphics.
Once you’ve removed the offending device from the traplist,
check to see if crttrap detects the card properly:
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Chapter 15 ¯ Connecting Hardware
February 1, 2005