Raymond Lillard (rlillard) wrote: > My problem is similar to Scot's (Plextor) and may be related. > > I have installed FC3 (+ all outstanding updates) on a Dell > Latitude D810 laptop. The everything works, but I am unable > to get my CD/DVD drive to use DMA. My experience with > "hdparm" is the same as Scott's as described previously. > > Interestingly, I have a Dell Inspiron 8100, which is nearly > four years old running a fully patched FC2 OS with no DMA > issues. It is running kernel 2.6.10-1.770_FC2 which makes > me think the problem is related to the 82801FBM (AKA ICH6R) > in the D810. > > Thanks for listening, > Ray I have the exact same problem on my Dell Inspiron 6000: [root@mobile ~]# hdparm -d1 /dev/hdc /dev/hdc: setting using_dma to 1 (on) HDIO_SET_DMA failed: Operation not permitted using_dma = 0 (off) This stinks, I can't watch DVDs on my laptop. Here's my info... [root@mobile ~]# cat /proc/ide/hdc/model SAMSUNG CDRW/DVD SN-324S [root@mobile ~]# cat /proc/ide/hdc/driver ide-cdrom version 4.61 [root@mobile ~]# cat /proc/ide/hdc/settings name value min max mode ---- ----- --- --- ---- current_speed 0 0 70 rw dsc_overlap 0 0 1 rw init_speed 0 0 70 rw io_32bit 0 0 3 rw keepsettings 0 0 1 rw nice1 1 0 1 rw number 0 0 3 rw pio_mode write-only 0 255 w unmaskirq 0 0 1 rw using_dma 0 0 1 rw Thanks for listening also.
