Administrace komentářů

Tak jsem si vcera po delsi dobe udelal pacman -Syu a hned mam problem s dvd rom v notasu.
Prace s mechanikou je neunosna.A nejen s ni.
Pokud delam neco s mechanikou je i prace v X prave peklo. Neporadi nekdo jak zapnout DMA u mechaniky kdyz hdparm s libata nefunguje?
Prikladam par vypisu.
Notas Acer Aspire 3023

bash-3.2# uname -r
2.6.25-ARCH

******************************************************************************

bash-3.2# hdparm -Ii /dev/sr0

/dev/sr0:

 Model=TSSTcorpCD/DVDW TS-L532A                , FwRev=TI51    , SerialNo=754E210366          
 Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
 RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
 BuffType=unknown, BuffSize=2048kB, MaxMultSect=0
 (maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
 IORDY=on/off, tPIO={min:120,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
 Drive conforms to: ATA/ATAPI-7 T13 1532D revision 1:  ATA/ATAPI-3,4,5,6,7

 * signifies the current active mode


ATAPI CD-ROM, with removable media
	Model Number:       TSSTcorpCD/DVDW TS-L532A                
	Serial Number:      754E210366          
	Firmware Revision:  TI51    
Standards:
	Used: ATAPI for CD-ROMs, SFF-8020i, r2.5
	Supported: CD-ROM ATAPI-2 
Configuration:
	DRQ response: 50us.
	Packet size: 12 bytes
Capabilities:
	LBA, IORDY(can be disabled)
	Buffer size: 2048.0kB
	DMA: sdma0 sdma1 sdma2 mdma0 mdma1 mdma2 udma0 udma1 *udma2 
	     Cycle time: min=120ns recommended=120ns
	PIO: pio0 pio1 pio2 pio3 pio4 
	     Cycle time: no flow control=120ns  IORDY flow control=120ns
Commands/features:
	Enabled	Supported:
	   *	Power Management feature set
	   *	PACKET command feature set
	   *	DEVICE_RESET command
	   *	NOP cmd
	   *	Mandatory FLUSH_CACHE
HW reset results:
	CBLID- above Vih
	Device num = 0 determined by CSEL

**********************************************************************

bash-3.2# hdparm -Tt /dev/sr0

/dev/sr0:
 Timing cached reads:     2 MB in  2.07 seconds = 990.26 kB/sec
 Timing buffered disk reads:    4 MB in  3.92 seconds =   1.02 MB/sec

*******************************************************************

bash-3.2# hdparm /dev/sr0

/dev/sr0:
 IO_support    =  0 (default) 
16-bit)
 HDIO_GET_UNMASKINTR failed: Inappropriate ioctl for device
 HDIO_GET_DMA failed: Inappropriate ioctl for device
 HDIO_GET_KEEPSETTINGS failed: Inappropriate ioctl for device
 readonly      =  0 (off)
 readahead     = 256 (on)
 HDIO_GETGEO failed: Inappropriate ioctl for device

********************************************************************

bash-3.2# hdparm -d 1 /dev/sr0

/dev/sr0:
 setting using_dma to 1 (on)
 HDIO_SET_DMA failed: Inappropriate ioctl for device
 HDIO_GET_DMA failed: Inappropriate ioctl for device

********************************************************************

bash-3.2# blockdev --getra /dev/sr0
256

********************************************************************

bash-3.2# dmesg | grep ata
 BIOS-e820: 000000001fea0000 - 000000001feae000 (ACPI data)
Memory: 513140k/522880k available (2075k kernel code, 9208k reserved, 712k data, 268k init, 0k highmem)
      .data : 0xc0306cf8 - 0xc03b8e80   ( 712 kB)
ACPI: EC: GPE = 0x3, I/O: command/status = 0x66, data = 0x62
libata version 3.00 loaded.
scsi0 : pata_atiixp
scsi1 : pata_atiixp
ata1: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0x8410 irq 14
ata2: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0x8418 irq 15
ata1.00: ATA-6: TOSHIBA MK8025GAS, KA023A, max UDMA/100
ata1.00: 156301488 sectors, multi 16: LBA 
ata1.00: configured for UDMA/100
ata2.00: ATAPI: TSSTcorpCD/DVDW TS-L532A, TI51, max UDMA/33
ata2.00: simplex DMA is claimed by other device, disabling DMA
ata2.00: configured for PIO4
ReiserFS: sda2: using ordered data mode
ieee80211: 802.11 data/management/control stack, git-1.1.13
ReiserFS: sda4: using ordered data mode

****************************************************************************

bash-3.2# lsmod | grep ata
ata_generic             5636  0 
pata_atiixp             5760  3 
pata_acpi               4992  0 
libata                141840  3 ata_generic,pata_atiixp,pata_acpi
scsi_mod               92204  4 sg,sr_mod,sd_mod,libata
dock                    7952  1 libata