Basil Chupin wrote:
Roy F. Cabaniss wrote: [pruned]
In YAST: When I check the ide parameters the current dma mode for the cd is off. If I attempt to reset the DMA for the CDROM to UltraDMA33 I get an error message of:
"An error occured while activating the changes. Cannot set required mode '%1' for device '%2'."
At a terminal as root, It seems as if I can manually reset the parameter with: hdparm -d1 /dev/hdc
however this does not last to the next reboot.
ideas on how to make this behavior cease?
Put an entry in /etc/sysconfig/ide. The entry will depend on how your HDs and CD/DVD drives are configured and what their DMAs are. As an example to follow, I have the following configuration:
/dev/hda is my main HD /dev/hdb is my CD ROM /dev/hdc is my 2nd HD /dev/hdd is my DVD burner
So, in /etc/sysconfig/ide I put in the following statement:
DEVICES_FORCE_IDE_DMA="/dev/hda:udma5 /dev/hdb:udma2 /dev/hdc:udma5 /dev/hdd:udma4"
In order to get the setting for the CD ROM "stick" (and displayed in Control Centre/Hardware/IDE DMA ) I had to put in *all* the drives I have installed - just inserting "/dev/hdb:udam3"
Sorry! this is a typo and should read "udma2" and not "3". Cheers. -- This computer is environment-friendly and is running on OpenSuSE 10.1