Hello all: I have suse 10.1. The system has a cd-rw and a dvd-rw drive. After booting the system Yast dma status check reports that for both drive the dma is on. After a certain time checking again Yast reports that dma is off for both drives. If I want to turn dma in Yast it gives an error message: "An error occured while activating the changes. Cannot set required mode '%1' for device %2." At the same time according to hdparm dma is on: # hdparm -i /dev/hdc /dev/hdc: Model=PIONEER DVD-RW DVR-108, FwRev=1.20, SerialNo= Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic } RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0 BuffType=13395, BuffSize=64kB, MaxMultSect=0 (maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0 IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4 DMA modes: mdma0 mdma1 mdma2 UDMA modes: udma0 udma1 udma2 udma3 *udma4 AdvancedPM=no Drive conforms to: Unspecified: ATA/ATAPI-2 ATA/ATAPI-3 ATA/ATAPI-4 ATA/ATAPI-5 * signifies the current active mode # hdparm -i /dev/hdd /dev/hdd: Model=ATAPI CD-RW 52XMax, FwRev=180D, SerialNo= Config={ Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic } RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0 BuffType=unknown, BuffSize=1024kB, MaxMultSect=0 (maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0 IORDY=on/off, tPIO={min:383,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4 DMA modes: sdma0 sdma1 sdma2 mdma0 mdma1 mdma2 UDMA modes: udma0 udma1 *udma2 AdvancedPM=no * signifies the current active mode NeroLINUX also claimed that dma was off, and burning a regular dvd took 40 min when the speed was set to 6x so I concluded that dma was off. (Is that correct?) Questions: 1. What can cause that dma is turned off? 2. How can I check dma staus on the command line w/o starting yast? 3. How could I turn dma on? TIA, IG ______________________________________________________________________ KGFB-2007 az Első Online Alkusztól! Kösse nálunk újra kötelező biztosítását! Az összes biztosító egy helyen, Online kedvezmények, egyszerű ügymenet. http://www.netrisk.hu