*** This bug is a duplicate of bug 228302 ***
https://bugs.launchpad.net/bugs/228302
** This bug has been marked a duplicate of bug 228302
[Hardy] No DMA nor 32bits IO support anymore
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DVD playback jerky due to ata_generic module disabling DMA
https://bugs.launchpad.net/bugs/175022
You
Hi Tzadik,
Since you are the original bug reporter, care to test and confirm if
this issue remains with the latest Karmic 9.10 Alpha development release
of Ubuntu. ISO CD images are available from
http://cdimage.ubuntu.com/releases/ . Please let us know your results.
Thanks.
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DVD playback
this bug is now present on my system containing an ALI chipset, running
ubuntu-intrepid. I have never seen this problem before using ubuntu.
Issuing echo 1 /sys/module/pata_ali/parameters/atapi_dma resolved my
problem.
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DVD playback jerky due to ata_generic module disabling DMA
This is the dsmeg with: options pata_ali atapi_dma=1
dmesg | grep ata
[0.00] BIOS-e820: 1df7 - 1df7f000 (ACPI data)
[0.00] #0 [00 - 001000] BIOS data page == [00
- 001000]
[0.00] PERCPU: Allocating 41628 bytes of per cpu
Well, I'm not a kernel developer, but that doesn't look good. Looks like
it tries a bunch of DMA modes and they all fail and it ends up going
back to PIO mode which is the slow cpu-does-everything mode.
I'm not sure if this will make you feel any better, but you could try digging
around the
Thanx for your quick response.
After adding options pata_ali atapi_dma=1 to the options file the dma is
activated. But inserting a dvd didnt result in automaticly playing in. Manaul
start of totum and ordering to play the dvd freezes the application. Its
becomes also impossible to eject.
Same problem on fully updated Intrepid
DVD playing is extremely choppy / almost impossible!
dsmeg gives te following output:
[4.204372] ata2.00: ATAPI: SONY DVD RW DW-D56A, PFS3, max UDMA/33
[4.204389] ata2.00: WARNING: ATAPI DMA disabled for reliablity issues. It
can be enabled
[
So have you tried turning on DMA as suggested by the dmesg output?
See the second post of this message for how to do it:
http://forums.fedoraforum.org/showthread.php?t=202162
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DVD playback jerky due to ata_generic module disabling DMA
https://bugs.launchpad.net/bugs/175022
You received this
Thanx,
+ adding options pata_ali atapi_dma=1 to /etc/modules
or
+ adding pata_ali.atapi_dma=1 to boot options (unrecognized command)
did not work,
still error in dsmeg and choppy video
also sudo echo 1 /sys/module/pata_ali/parameters/atapi_dma did not
work (permission denied).
output for
Hi,
I think the file you want to modify for options is /etc/modprobe.d/options.
Check out the modprobe manpage.
/etc/modules just lists modules to load.
Also, I don't think the hdparm command can be used for the newer
kernels. It is a shame that use of this command as a diagnostic of
brokenness
i made a fresh install of Intrepid Ibex 8.10
(ubuntu-8.10-beta-desktop-i386.iso) on my toshiba satellite. Very slow dvd
playback.
No dma and
sudo hdparm -d1 /dev/scd0
/dev/scd0:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Inappropriate ioctl for device
HDIO_GET_DMA failed:
Hi Claus,
Please be advised that the 'hdparm' command doesn't work with the newer
kernels. (Any kernel where your device is /dev/scd rather than /dev/hd )
It seems that enough people try it that it is the right thing to do, but it
isn't. There will be a few lines in the dmesg output that tell
Same again with live CD intrepid alpha 5. dmesg shows DMA activating
automatically on boot. Looks good.
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DVD playback jerky due to ata_generic module disabling DMA
https://bugs.launchpad.net/bugs/175022
You received this bug notification because you are a member of Ubuntu
Bugs, which is
The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the
upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would
appreciate it if you could please test this newer 2.6.27 Ubuntu kernel.
There are one of two ways you should be able to test:
1) If you are comfortable
I just tried the Intrepid alpha 4 live CD, and this problem appears to
be fixed for me (at least as far as the dmesg output shows both the hard
disk and the CD using DMA).
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DVD playback jerky due to ata_generic module disabling DMA
https://bugs.launchpad.net/bugs/175022
You received this bug
Hi, did exactly what mystictim wrote at post #2 (no I did not forget the
sudo update-initramfs -u :-)), but I couldn't get the ata_generic module
removed. It's still listed:
libata159344 3 ata_generic,pata_acpi,pata_atiixp
Only thing changed is the order of the modules... hdparm
Sorry, me again. Things are fine now. Seems like it's normal that the
module still gets loaded.
Timing cached reads: 680 MB in 2.00 seconds = 339.72 MB/sec
Timing buffered disk reads: 14 MB in 3.36 seconds = 4.17 MB/sec
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DVD playback jerky due to ata_generic module disabling DMA
Hi,
Thanks for the workaround.
I too have this problem on my laptop after a fresh Hardy install.
Hardware details:
https://wiki.ubuntu.com/LaptopTestingTeam/CompaqPresarioV2600CTO
A few points:
- this is a regression of sorts. I did not have this problem with Gusty, but do
have it with Hardy
ACK, on Acer 3023WLMi
https://wiki.ubuntu.com/LaptopTestingTeam/AcerAspire3023
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DVD playback jerky due to ata_generic module disabling DMA
https://bugs.launchpad.net/bugs/175022
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
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Ugh, forgot to mention :
[EMAIL PROTECTED]:~$ uname -a
Linux lukasz-laptop 2.6.24-16-generic #1 SMP Thu Apr 10 13:23:42 UTC 2008 i686
GNU/Linux
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DVD playback jerky due to ata_generic module disabling DMA
https://bugs.launchpad.net/bugs/175022
You received this bug notification because you
Same as above. No problem with Gutsy. This fixed my problem.
--
DVD playback jerky due to ata_generic module disabling DMA
https://bugs.launchpad.net/bugs/175022
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
--
ubuntu-bugs mailing
** Changed in: linux-source-2.6.22 (Ubuntu)
Sourcepackagename: None = linux-source-2.6.22
Status: New = Confirmed
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DVD playback jerky due to ata_generic module disabling DMA
https://bugs.launchpad.net/bugs/175022
You received this bug notification because you are a member of Ubuntu
I've experienced the same issue after upgrading to Hardy RC - DVD
playback worked fine in Gutsy before then. Following the steps above
resolved my issue and now DMA is enabled and DVD playback is back to
normal.
Attached is my current dmesg output with the fix in place. If any other
information
** Summary changed:
- DVD playback choppy
+ DVD playback jerky due to ata_generic module disabling DMA
--
DVD playback jerky due to ata_generic module disabling DMA
https://bugs.launchpad.net/bugs/175022
You received this bug notification because you are a member of Ubuntu
Bugs, which is the
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