Public bug reported:
I noticed this when I was attempting to burn some DVD backup disks this
evening...
K3b was acting particularly sluggish and burning many coasters. I then
tried the integrated Nautilus burner which yielded the same results. I
checked HDParm to find that I received the following output:
/dev/hdc:
IO_support = 1 (32-bit)
unmaskirq = 1 (on)
using_dma = 1 (on)
keepsettings = 0 (off)
readonly = 0 (off)
readahead = 256 (on)
HDIO_GETGEO failed: Inappropriate ioctl for device
Checking further online for a solution, I ran dmesg and found this line:
[ 6.232000] hdc: ATAPI 48X DVD-ROM DVD-R CD-R/RW drive, 2048kB
Cache<4>hdc: drive side 80-wire cable detection failed, limiting max
speed to UDMA33
I definitely have 80 conductor cable installed, so this puzzled me. I
was also unable to find anyone else that was able to solve this problem.
Hardware:
AMD X2 3800+
Asus A8N-SLI Premium NForce 4 Chipset
7800 GT
1GB Ram
** Affects: Ubuntu
Importance: Undecided
Status: New
** Tags: cd dvd gutsy
** Summary changed:
- CD/DVD UDMA100 not working (cannot detect 80-conductor cable)
+ Gutsy CD/DVD UDMA100 not working (cannot detect 80-conductor cable)
** Tags added: cd dvd gutsy
--
Gutsy CD/DVD UDMA100 not working (cannot detect 80-conductor cable)
https://bugs.launchpad.net/bugs/123669
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