Hello again,
Forgot to mention that under Windows dvd drive works fast, so I would
rule out a hardware problem.
Some additional info:
lspci | grep SATA
00:11.0 SATA controller: ATI Technologies Inc SB700/SB800 SATA Controller [AHCI
mode]
systool -a -v -m libata
Module = "libata"
Attributes:
initstate = "live"
refcnt = "4"
srcversion = "8EEDFA91840B8BF4F95490E"
version = "3.00"
Parameters:
acpi_gtf_filter = "7"
allow_tpm = "0"
ata_probe_timeout = "0"
atapi_dmadir = "0"
atapi_enabled = "1"
atapi_passthru16 = "1"
dma = "7"
fua = "0"
ignore_hpa = "1"
noacpi = "0"
dma is set to 7, e.g. it's set to all devices (including dvd).
lsscsi
[2:0:0:0] disk ATA Hitachi HDT72103 ST2O /dev/sda
[3:0:0:0] cd/dvd HL-DT-ST DVDRAM GH41N MN01 /dev/sr0
[6:0:0:0] disk Generic- Compact Flash 1.00 /dev/sdb
[6:0:0:1] disk Generic- SM/xD-Picture 1.00 /dev/sdc
[6:0:0:2] disk Generic- SD/MMC 1.00 /dev/sdd
[6:0:0:3] disk Generic- MS/MS-Pro/HG 1.00 /dev/sde
[6:0:0:4] disk Generic- SD/MMC/MS/MSPRO 1.00 /dev/sdf
All devices with the exception of dvd work fast.
Any additional hardware information is available on request.
I'd like to find a root cause of the problem.
Any hints would be appreciated.
Thanks,
Alexander
--
dvd write is extremely slow on kubuntu 9.10
https://bugs.launchpad.net/bugs/501131
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