but a year or two ago the cdrom device could be used to show
movies. At that time, as far as I could tell, the cd device
worked perfectly for viewing DVD movies. I did try copying an
audio cd but the process was very slow. I do not remember
whether I tried recording onto a cd. Now, after likely a couple
of kernel upgrades, the cdrom device does not work at all.
I have a few T43 thinkpads, all with Debian installed. I tried
another T43 running Debian at the same level of upgrade and it
also had this bug.
Here is what 'less /proc/cpuinfo' returns on the T43 I am using now:
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 13
model name : Intel(R) Pentium(R) M processor 1.60GHz
stepping : 8
cpu MHz : 800.000
cache size : 2048 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat clflush dts acpi mmx fxsr sse sse2 ss tm pbe nx up bts est tm2
bogomips : 1598.00
clflush size : 64
power management:
Here is more information:
u...@usert43:~$ uname -a
Linux usert43 2.6.26-2-686 #1 SMP Sun Jun 21 04:57:38 UTC 2009 i686 GNU/Linux
usert43:~# hdparm -I /dev/sr0
/dev/sr0:
ATAPI CD-ROM, with removable media
Model Number: HL-DT-STDVD-ROM GDR8083N
Serial Number:
Firmware Revision: 0K04
Standards:
Likely used CD-ROM ATAPI-1
Configuration:
DRQ response: 50us.
Packet size: 12 bytes
cache/buffer size = unknown
Capabilities:
LBA, IORDY(can be disabled)
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
usert43:~# hdparm -d1 /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
Thank you for reading this, Bugmasters of Debian!
oo--JS.
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