On Thu, 2006-03-23 at 16:15 -0500, JimD wrote: > On Thu, 23 Mar 2006 12:54:44 -0700 > Joseph <[EMAIL PROTECTED]> wrote: > > > Yes, I've tried "-k1" too, it doesn't help. > > It seems like kernel bug, I was able to duplicate resetting CD/DVD DMA > > on both machines: > > amd64 with BenQ DVD writer and > > x86 with Plextor CD writer > > It might be a bug, though it probably is only for certain drives. I > have a LITE-ON DVDRW LDW-451S on amd64. Here is a test I just ran: > > > [EMAIL PROTECTED] $ sudo hdparm /dev/hdc > /dev/hdc: > IO_support = 1 (32-bit) > unmaskirq = 1 (on) > using_dma = 1 (on) > keepsettings = 0 (off) > readonly = 0 (off) > readahead = 256 (on) > HDIO_GETGEO failed: Invalid argument > > [EMAIL PROTECTED] $ sudo eject > > [EMAIL PROTECTED] $ sudo hdparm /dev/hdc > /dev/hdc: > IO_support = 1 (32-bit) > unmaskirq = 1 (on) > using_dma = 1 (on) > keepsettings = 0 (off) > readonly = 0 (off) > readahead = 256 (on) > HDIO_GETGEO failed: Invalid argument > > [EMAIL PROTECTED] $ sudo eject > > [EMAIL PROTECTED] $ sudo hdparm /dev/hdc > /dev/hdc: > IO_support = 1 (32-bit) > unmaskirq = 1 (on) > using_dma = 1 (on) > keepsettings = 0 (off) > readonly = 0 (off) > readahead = 256 (on) > HDIO_GETGEO failed: Invalid argument > > [EMAIL PROTECTED] $ eject --version > eject version 2.1.0 by Jeff Tranter ([EMAIL PROTECTED]) > > Running eject as root or a regular user did not reset my DMA > settings for my DVD-RW. > > Jim
Before ejecting put any CD / DVD disk IN and run: dd if=/dev/hdc of=backup.iso or cat /dev/hdc >backup.iso When finished run "eject ..." and hdparm /dev/hdc See if the parameter "using_dma" was reset. -- #Joseph -- gentoo-user@gentoo.org mailing list
