Messages in this thread | | | Date | Sun, 07 Feb 1999 10:48:26 +0100 | From | Andres Kruse <> | Subject | peculiar IDE/SCSI interaction (Tyan S1836DLUAN problem?) |
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Hello,
I have here two machines which are identically equipped. Both have a Tyan S1836DLUAN Thunder 100, 2xPII@400MHz, 128 MB RAM. At the beginning both had a 2940 Adaptec with three disks. One of the machines I used to test out new kernels and in particular the aic7xxx driver. I eventually took out the 2940 adapter and used the onboard AIC-7895 controller. All worked perfectly exept a thing I just noticed today when I upgraded the other machine to the same kernel and took out the 2940 too. Somehow, taking away that controller and activating the on-board SCSI made the ATAPI CDROM drive not being recognised anymore by Linux (2.2.1-ac4), it now sais
PIIX4: IDE controller on PCI bus 00 dev 39 PIIX4: not 100% native mode: will probe irqs later ide0: BM-DMA at 0xffa0-0xffa7, BIOS settings: hda:DMA, hdb:pio hda: ......................................., ATAPI UNKNOWN (type 14) drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
while before the message was:
PIIX4: IDE controller on PCI bus 00 dev 39 PIIX4: not 100ative mode: will probe irqs later ide0: BM-DMA at 0xffa0-0xffa7, BIOS settings: hda:DMA, hdb:pio ide1: BM-DMA at 0xffa8-0xffaf, BIOS settings: hdc:pio, hdd:pio hda: CD-ROM CDU711, ATAPI CDROM drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 hda: ATAPI 14X CD-ROM drive, 256kB Cache Uniform CDROM driver Revision: 2.52
I had already sent a message about this to the kernel list before and got some replies (for example to say "hda=cdrom") but none worked, so I lived with it. But only now I realise that removing the Adaptec and switching over to on-board SCSI caused this problem.
Does anyone know how to cure it?
Thanx,
Andres
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