framebuffer inconsistencies

Brad Midgley brad at pht.com
Fri Dec 11 09:42:48 EST 1998


there are some inconsistencies and recent problems with having multiple
video cards with recent kernels. some of the problems might actually be
driver problems in the ati xclaim vr driver. 

1. i used to be able to put consoles on both my monitors using
video=map:001 (i never tried the userland programs for setting up
consoles) however now, the fb1 screen only shows the blinking underline
cursor; no text appears although i can tell by the position of the cursor
that it is successfully running login on that console

2. the secondary monitor went spiralling into a bad video mode once when i
changed from console 3 to 6. it never recovered. 

3. fbset -s -fb /dev/fb1 doesn't really get the settings for the second
video/monitor. it returns the settings for fb0.

i've been digging in the kernel to see why (3) is happening.

fb0 is a control-driven nec xv17+
fb1 is a ati xclaimvr-driven apple 14" fixed-frequency monitor 

any pointers?

brad


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