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Old 03-27-2010, 12:24 AM   #1
Registered: Aug 2009
Distribution: linux
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pata_amd driver for dvdrw

I am getting really slow speeds using brasero. I think the speeds will be the same when if i was to use k3b as well. I have had issues with this in the past as well.

the controller:
00:06.0 IDE interface: nVidia Corporation MCP61 IDE (rev a2) (prog-if 8a [Master SecP PriP])
	Subsystem: Elitegroup Computer Systems Device 2601
	Flags: bus master, 66MHz, fast devsel, latency 0
	[virtual] Memory at 000001f0 (32-bit, non-prefetchable) [size=8]
	[virtual] Memory at 000003f0 (type 3, non-prefetchable) [size=1]
	[virtual] Memory at 00000170 (32-bit, non-prefetchable) [size=8]
	[virtual] Memory at 00000370 (type 3, non-prefetchable) [size=1]
	I/O ports at f000 [size=16]
	Capabilities: [44] Power Management version 2
	Kernel driver in use: pata_amd
	Kernel modules: ata_generic, pata_acpi, pata_amd
the drive info:
~# hdparm -I /dev/dvdrw


ATAPI CD-ROM, with removable media
	Model Number:       ATAPI   DVD A  DH20A1P                  
	Serial Number:      
	Firmware Revision:  6X12    
	Used: ATAPI for CD-ROMs, SFF-8020i, r2.5
	Supported: CD-ROM ATAPI-2 
	DRQ response: 50us.
	Packet size: 12 bytes
	cache/buffer size  = unknown
	LBA, IORDY(cannot be disabled)
	DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 *udma4 
	     Cycle time: min=120ns recommended=120ns
	PIO: pio0 pio1 pio2 pio3 pio4 
	     Cycle time: no flow control=240ns  IORDY flow control=120ns
	Enabled	Supported:
	   *	PACKET command feature set
	   *	DEVICE_RESET command
	   *	Mandatory FLUSH_CACHE
HW reset results:
	CBLID- below Vih
	Device num = 0
I have also checked around and found this thread which didnt really seem to apply in my case as it was when the chipset was just starting to be used. I also have issues with sound which the same chipset controls. is the chipset driver? if so can i load ata_generic live and try it?

I know the drive works. I have had speeds up to around 8x using linux in the past. however, this particular drive in 2 different machines has always ended up running really slow.
I have seen other threads here and elsewhere which I have not found a solution with. I was wondering if was something to do with wodim or something. I am kinda outa my depth with this and could use some help.

Last edited by mrmnemo; 03-27-2010 at 12:27 AM.
Old 03-31-2010, 03:17 AM   #2
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Try cdrecord or set writing speed to higher number while writing.
Old 04-02-2010, 08:31 PM   #3
Registered: Aug 2009
Distribution: linux
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I have tried bumpig up the speed. As to cdrecord: I was told that its not being maintained as most distros are going with wodimm. Anyways, I will give it a try to see if thats the issue. I do think someone mentioned once that wodim and another tool cause conflicts with each other. Which would cause this problem.


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