Comment 344 for bug 88746

Hello,
I have another variation of the above solution.

In your menu.list file you can add a parameter to turn off autosuspend globally.

kernel /boot/vmlinuz-2.6.26-1-686 root=/dev/hdb2 ro vga=791 usbcore.autosuspend=-1

This in fact is the same as above, but you don't have to change each device. The above approach is great if its just a few devices.

I stumbled upon this about 1 year ago with a Samsung ML-2010 that would only print a few pages and stop. I couldn't figure it out. After some snooping, I found it was because the Samsung printer driver (which included a Linux CD, Kudos to you Samsung) didn't turn off autosuspend. I notified Samsung to have their Linux team add the printer to the blacklist but I guess it never happened.

As a result, I can print fine and my devices are working.

I started to look for the same error again with the 2.6.26 kernel from Debian and stumbled upon this post. Just thought I'd share some knowledge.

But a question:
Is usb storage broken in the 2.6.26 kernel now?
I've been getting some strange errors

Oct 2 16:41:37 mepis1 kernel: [10725.578559] sd 13:0:0:0: [sda] Attached SCSI disk
Oct 2 16:42:26 mepis1 kernel: [10778.689115] usb 9-4: reset high speed USB device using ehci_hcd and address 14
Oct 2 16:42:27 mepis1 kernel: [10779.523824] usb 9-4: reset high speed USB device using ehci_hcd and address 14
Oct 2 16:42:27 mepis1 kernel: [10779.675803] usb 9-4: device firmware changed
Oct 2 16:42:27 mepis1 kernel: [10779.675803] usb 9-4: USB disconnect, address 14
Oct 2 16:42:27 mepis1 kernel: [10779.675803] sd 13:0:0:0: [sda] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK,SUGGEST_OK
Oct 2 16:42:27 mepis1 kernel: [10779.675803] __ratelimit: 254086 messages suppressed
Oct 2 16:42:27 mepis1 kernel: [10779.675803] lost page write due to I/O error on sda1
Oct 2 16:42:27 mepis1 last message repeated 9 times
Oct 2 16:42:27 mepis1 kernel: [10779.675803] sd 13:0:0:0: [sda] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK,SUGGEST_OK
Oct 2 16:42:27 mepis1 last message repeated 8 times
Oct 2 16:42:27 mepis1 kernel: [10779.675866] sd 13:0:0:0: [sda] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK,SUGGEST_OK
Oct 2 16:42:27 mepis1 kernel: [10779.676182] sd 13:0:0:0: [sda] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK,SUGGEST_OK
Oct 2 16:42:27 mepis1 kernel: [10779.679806] sd 13:0:0:0: [sda] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK,SUGGEST_OK
Oct 2 16:42:27 mepis1 last message repeated 10 times
Oct 2 16:42:27 mepis1 kernel: [10779.680300] sd 13:0:0:0: [sda] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK
Oct 2 16:42:27 mepis1 kernel: [10779.699905] sd 13:0:0:0: [sda] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK
Oct 2 16:42:27 mepis1 kernel: [10779.778083] usb 9-2: reset high speed USB device using ehci_hcd and address 13
Oct 2 16:42:27 mepis1 kernel: [10779.836350] sd 12:0:0:3: [sde] READ CAPACITY failed
Oct 2 16:42:27 mepis1 kernel: [10779.836350] sd 12:0:0:3: [sde] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK,SUGGEST_OK
Oct 2 16:42:27 mepis1 kernel: [10779.836350] sd 12:0:0:3: [sde] Sense not available.
Oct 2 16:42:27 mepis1 kernel: [10779.836835] sd 12:0:0:1: [sdc] READ CAPACITY failed

Wondering if the device could be bad.

Good Luck,
btanoue