Re: Plextor PX-716A DVD burner and xine (details)

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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

PS  Details follow.


Kernel config includes:
CONFIG_BLK_DEV_IDEDMA_PCI=y
CONFIG_IDEDMA_PCI_AUTO=y

The System components are:
CPU:    Intel Pentium-M (M760)  2.0GHz  stepping 08
RAM:    1GB
Disk:   (sda) Hitachi PATA/IDE 60GB, 8MB cache, 7200RPM
CD/DVD: (hdc) ATAPI CD-ROM, SONY DVD+/-RW DW-D56A
CHIP:   IDE ifc Intel Corp. 82801FBM (ICH6M) SATA Controller
Kernel: 2.6.10-1.766_FC3 #1 Wed Feb 9 23:06:42 EST 2005 i686 i686 i386 GNU/Linux

IDE/ATA related snippets from dmesg:

ACPI: Using PIC for interrupt routing
ACPI: PCI Root Bridge [PCI0] (00:00)
PCI: Probing PCI hardware (bus 00)
PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.2
PCI: Transparent bridge - 0000:00:1e.0

Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 66MHz system bus speed for PIO modes
ide0: I/O resource 0x1F0-0x1F7 not free.
ide0: ports already in use, skipping probe
Probing IDE interface ide1...
hdc: SONY DVD+/-RW DW-D56A, ATAPI CD/DVD-ROM drive
Probing IDE interface ide2...
ide2: Wait for ready failed before probe !
Probing IDE interface ide3...
ide3: Wait for ready failed before probe !
Probing IDE interface ide4...
ide4: Wait for ready failed before probe !
Probing IDE interface ide5...
ide5: Wait for ready failed before probe !
elevator: using anticipatory as default io scheduler
ide1 at 0x170-0x177,0x376 on irq 15
hdc: ATAPI 24X DVD-ROM DVD-R CD-R/RW drive, 2048kB Cache
Uniform CD-ROM driver Revision: 3.20

SCSI subsystem initialized
libata version 1.10 loaded.
ata_piix version 1.03
ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 7
PCI: setting IRQ 7 as level-triggered
ACPI: PCI interrupt 0000:00:1f.2[B] -> GSI 7 (level, low) -> IRQ 7
ata: 0x170 IDE port busy
PCI: Setting latency timer of device 0000:00:1f.2 to 64
ata1: SATA max UDMA/133 cmd 0x1F0 ctl 0x3F6 bmdma 0xBFA0 irq 14
ata1: dev 0 cfg 49:0f00 82:746b 83:7fe8 84:4023 85:f469 86:3c48 87:4023 88:203f
ata1: dev 0 ATA, max UDMA/100, 117210240 sectors: lba48
ata1: dev 0 configured for UDMA/100
scsi0 : ata_piix
  Vendor: ATA       Model: HTE726060M9AT00   Rev: MH4O
  Type:   Direct-Access                      ANSI SCSI revision: 05
SCSI device sda: 117210240 512-byte hdwr sectors (60012 MB)
SCSI device sda: drive cache: write back
SCSI device sda: 117210240 512-byte hdwr sectors (60012 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 >
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0





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