| 1 |
I'm starting to believe that it has something to do with some option in |
| 2 |
the kernel that is not enabled. |
| 3 |
I just swap the CD/RW Plextor from the machine that is working OK on |
| 4 |
kernel 2.6.11 (where DMA is enabled and everything is working, CD/RW, |
| 5 |
except eject - but that is another story) into a new New Machine on |
| 6 |
kernel-2.6.12 |
| 7 |
|
| 8 |
Anyhow, I just put the Plextor CD/RW into my new machine and the DMA was |
| 9 |
not not enabled: hdparm /dev/hdc for plextor on working machine. |
| 10 |
/dev/hdc: |
| 11 |
IO_support = 1 (32-bit) |
| 12 |
unmaskirq = 1 (on) |
| 13 |
using_dma = 1 (on) |
| 14 |
keepsettings = 0 (off) |
| 15 |
readonly = 0 (off) |
| 16 |
readahead = 256 (on) |
| 17 |
|
| 18 |
hdparm for plextor on new machine: |
| 19 |
|
| 20 |
/dev/hdd: |
| 21 |
IO_support = 0 (16-bit) |
| 22 |
unmaskirq = 0 (off) |
| 23 |
using_dma = 0 (off) |
| 24 |
keepsettings = 0 (off) |
| 25 |
readonly = 0 (off) |
| 26 |
readahead = 256 (on) |
| 27 |
|
| 28 |
So, I strongly believe it has to do with some setting in the kernel or |
| 29 |
diver. |
| 30 |
|
| 31 |
Another interesting thing is that lshw is not even listing CDROM present |
| 32 |
in a new machine for both drives: BenQ and Plextor, even though kernel |
| 33 |
detects them correctly. |
| 34 |
I did not put BenQ Writer into working machine, I'll try to analyze both |
| 35 |
kernel settings first, to see what I'm missing. |
| 36 |
|
| 37 |
-- |
| 38 |
#Joseph |
| 39 |
|
| 40 |
> > This makes it more likely that the problem is lack of support for your |
| 41 |
> > IDE chipset in your kernel. |
| 42 |
> |
| 43 |
> Joseph, |
| 44 |
> |
| 45 |
> Please post *ALL* of the output of a dmesg and lspci-v command. |
| 46 |
> I too believe chipset issues are most likely the problem. |
| 47 |
> |
| 48 |
> I am at present fighting a similar problem with a 915GM. |
| 49 |
> |
| 50 |
> -- |
| 51 |
> Regards, |
| 52 |
> Ray |
| 53 |
> |
| 54 |
> |
| 55 |
> |
| 56 |
|
| 57 |
-- |
| 58 |
gentoo-user@g.o mailing list |
Archives