Latest working kernel version: 2.6.25.13 Earliest failing kernel version: 2.6.26 (earliest tested) Distribution: Ubuntu 8.04 Hardware Environment: Acer Extensa 5220 Software Environment: Single User Mode. Problem Description: Starting with 2.6.26 my dvd drive is no longer detected. It simply doesn't show up on boot. (ls /dev/scd0; dmesg|grep dvd) If I manually insert the modules nothing happens either.
Please attach the output from `dmesg -s 1000000' for both the 2.6.25 and 2.6.26 kernels. Also the `lspci -vvxx' output. Thanks.
Hmmm... The biggest change form 2.6.25 to 2.6.26 regarding probing is defaulting to hardreset. But your machine is based on ICH7 where hardreset has been extensively tested and used. Strange. Please report what Andrew asked. Thanks.
Created attachment 17064 [details] dmesg 2.6.25.13
Created attachment 17065 [details] dmesg 2.6.26.1
Created attachment 17066 [details] lspsi 2.6.25.13
Created attachment 17067 [details] lspci 2.6.26.1
Looks like ata_piix hasn't been loaded at all? Does modprobe ata_piix magically fix the problem?
Ooops. Sorry. I thought the Sata driver is enough.