walls@attctc.Dallas.TX.US (Monty Walls) (02/11/90)
-------------------------------------------------------------------------- A couple weeks ago someone was asking about a problem with using a VGA card with minix. I had the same problem when I installed my ATI VGA card. When I booted minix it would hang immediately. This is caused by the VGA card generating an interrupt on IRQ 2 every 60th of a second (vertical retrace interrupt). This can also happen with some EGA cards (I think). To stop this just don't enable IRQ 2. -Monty Walls Monty Walls Work: Home: MIS Division, Tech. Support 2224 Houston Apt #8 Oklahoma Tax Commission Norman, OK, 73701 2501 N. Lincoln USA OKC, OK, 73194 Phone - 405-364-5123 USA uucp - attctc!walls Phone - 405-521-4300
jdudeck@polyslo.CalPoly.EDU (John R. Dudeck) (02/11/90)
In article <11400@attctc.Dallas.TX.US> walls@attctc.Dallas.TX.US (Monty Walls) writes: > A couple weeks ago someone was asking about a problem with using >a VGA card with minix. I had the same problem when I installed my ATI VGA >card. When I booted minix it would hang immediately. This is caused >by the VGA card generating an interrupt on IRQ 2 every 60th of a second >(vertical retrace interrupt). This can also happen with some EGA cards >(I think). To stop this just don't enable IRQ 2. I have an ATI VGA Wonder card, and had a similar problem when trying to boot Minix 1.2. However, I traced the source of the interrupt to the mouse port on the card. In order to get Minix to boot, I had to disable the mouse port from MS DOS, and then reboot. Minix 1.3 did not give this problem, presumably because the interrupt is handled by a stub routine. -- John Dudeck "You want to read the code closely..." jdudeck@Polyslo.CalPoly.Edu -- C. Staley, in OS course, teaching ESL: 62013975 Tel: 805-545-9549 Tanenbaum's MINIX operating system.