Re: Please test AirPrint on Natty and Oneiric

2011-06-28 Thread Daniel Chen
Hi Till,

On Jun 28, 2011 10:31 AM, Till Kamppeter till.kamppe...@gmail.com wrote:

 Before reporting bugs, please check your CUPS package version. It must be
1.4.6-5ubuntu1.3 on Natty and 1.4.6-11 on Oneiric. Wait for the mirrors to
catch up if needed.


Did you mean -9 for Oneiric? I don't see -11 on Launchpad or Debian PTS (or
Incoming), only -9.

Cheers,
-Dan
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Re: feature request: 32 vs 64 bit info in System Monitor

2011-06-26 Thread Daniel Chen
On Sun, Jun 26, 2011 at 7:21 PM, Vernon Cole vernondc...@gmail.com wrote:
 I manage many Ubuntu systems, and I often forget which ones are running 64
 bit version of Ubuntu, and which are 32 bit.
 It would be really nice if there were a quick way to tell.  The System tab
 on System Monitor would be an obvious place. Also, the About Ubuntu link
 on the Ubuntu Classic session manager might be nice.  Solutions involving
 command line commands and words like usually are not good.

In Oneiric, System Settings  System Info  Overview (the default
selection) shows whether the system is 64- or 32-bit via OS type.

Cheers,
-Dan

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Re: Pulseaudio dependency, if Debian can do it ...

2011-06-25 Thread Daniel Chen
Hi,

On Sat, Jun 25, 2011 at 4:21 AM, rosea.grammostola
rosea.grammost...@gmail.com wrote:
 1) Fedora, OpenSuse and Debian etc. aren't building their distro especially
 for this group.

Not being involved with Fedora or openSUSE closely, I can't comment on
them, but Debian doesn't ship a desktop as tightly integrated with
PulseAudio because the objective of offering a streamlined desktop
environment based on GNOME isn't the top priority.

 2) Why make it more troublesome for a group of users when it is not needed
 and other distros are showing it can be done without hurting the usability
 of the Desktop?

There has never been an intentional effort in Ubuntu to sabotage the
removal of pulse, rather there were no resources to better integrate
its alternatives (be they a complete removal of pulse or a drop-in
replacement, which to this day, still doesn't exist).

 3) Shouldn't components in the Desktop be able to be removed as much as
 possible? Just as a matter of Unix / Linux principle or doing things right?

As a matter of principle, this approach is ideal. Pragmatically it's
not straightforward at all. Consider the case of removing ALSA and
replacing it with OSSv4: it's not for the faint-of-heart and requires
a tremendous amount of corner-case awareness not to let certain
applications fall through the cracks. Or if you'd rather look higher
in the software stack, consider the case of replacing Evolution with
another calendar+email app that retains indicator functionality.
Doing things right /could/ imply providing full functionality or
being a drop-in replacement, but those approaches might not mesh with
the rest of the environment, and then you're faced with changing the
entire environment.

 4) Maybe it's not your focus group of users and you don't care, but you
 probably don't have an idea about how many people in the Ubuntu community
 are working very hard to make Ubuntu good for music (home)recording, via
 bugreports, package building, PPAs, Ubuntu Studio, documentation etc.

No, you're right in that I don't have an idea about how many people in
the community are working on improving the distribution, but I don't
believe that is the objective here, which is to contribute those fixes
back to the appropriate level. Things that improve pulse as a whole go
to upstream pulse; things that improve the base packaging go to
Debian; things that improve the integration into Ubuntu go to Ubuntu.

The idea is not to strike Ubuntu as a choice but to realize that this
distribution may not be the ideal choice. As you allude to later, it's
certainly possible to make Ubuntu do things, but the distribution
itself fits on one 700 MB CD image, and in those constraints we must
consider the likely computing needs of an audience. That said, it's
possible to create metapackages that contain information about
conflicting with other packages or providing certain functionality
(I'm touching a bit on the Debian packaging terminology), but to
create a streamlined solution like (the original) 64Studio really
requires things like a realtime kernel, the assortment of JACK/2-based
applications, and so on. That's actually the intent of the Ubuntu
Studio derivative.

 Fedora uses GNOME, Arch Linux uses GNOME, OpenSuse uses GNOME, Debian uses
 GNOME etc, but it is still good possible to remove Pulseaudio. Apparently
 those developer teams are seeing an advantage of the ability to remove
 Pulseaudio. And I think, even if there was not a obvious reason why people
 should want that, that is a general good and clean way to handle things in
 the world of Linux Desktop.

I don't think those developers necessarily see an overt advantage of
removing pulse. As far as I know, none of them ship indicators in
their default environments, and indicator-sound is a significant part
of the default Ubuntu experience. Arguably indicator-sound could be
extended to work directly with the ALSA hw ctl layer, and if you know
people who are willing to prioritize that use case, I'm sure Connor C
would be happy to discuss the merits and drawbacks of said approach
and move forward.

 The fact is that a group of users wants to be able to remove Pulseaudio. The
 question is why this is possible on other GNOME distros but not on Ubuntu?
 Is there a way to make this possible on Ubuntu also? Are you willing to make
 this possible?

I presume you're asking whether it's possible to integrate methods to
make it feasible with one click or something close to it, and if so,
yes, there are people willing to work on, but we need those people to
step up and act more visibly with the Ubuntu development team. The
ubuntu-audio-dev team on Launchpad is a good place to begin detailed
discussions.

Cheers,
-Dan

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Re: Pulseaudio dependency, if Debian can do it ...

2011-06-24 Thread Daniel Chen
Hi,

On Jun 24, 2011 7:10 AM, rosea.grammostola rosea.grammost...@gmail.com
wrote:

 Hi,

 A group of (professional) Linuxaudio users prefer to have a system without
Pulseaudio. How nice Pulseaudio can be for 'consumer audio', it can be a
pain on a professional audio system. That's why some people prefer to stick
with just ALSA and JACK. On most systems this is not a problem at all, like
Fedora and even on Debian, but on Ubuntu it is.

Perhaps Ubuntu does not best serve this audience? A derivative like Ubuntu
Studio may be more conducive (or perhaps a Debian blend or derivative).

Please keep in mind that Debian and Ubuntu don't target the same default
desktop users, thus we don't make the same audio stack decisions for Debian
as we do for Ubuntu (several of us are quite involved in both).


 This raises the question why ubuntu-desktop has Pulseaudio integrated in
such a way that almost the whole desktop system seems to depend on it. There
isn't a good way to remove Pulseaudio from Ubuntu! This is very ugly and not
a good way to handle things in the Linux world.


For GNOME, it's an upstream decision that makes sense for us as a
downstream.

Every so often a thread resurfaces with sentiments similar to yours. I
recommend that you check the list archives from October 2009, where I have
answered the question already.

 Why? If you can remove pulseaudio easily on Debian, why is it so freaking
hard on Ubuntu? What is the best place to report this major bug?

See above; the two distributions target different desktop users NY default.

Cheers,
-Dan
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Re: jags too old on lucid

2011-05-09 Thread Daniel Chen
On Mon, May 9, 2011 at 10:24 AM, Peng Yu pengyu...@gmail.com wrote:
 I'm wondering if anybody can get JAGS updated on lucid. Thanks.

Please see 
https://help.ubuntu.com/community/UbuntuBackports#How%20to%20request%20new%20packages

-Dan

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Re: GNOME Panel dropped in 11.10

2011-05-04 Thread Daniel Chen
On Thu, May 5, 2011 at 5:52 AM, Francis Bolduc fbol...@gmail.com wrote:
 ... I'm a software developer and I like to have
 updated development tools every 6 months ...
 I'm left with this dilemma. Neither Unity nor GNOME Shell fits my
 needs. What am I going to do in 6 months?

A false dichotomy. You have numerous choices if you wish to stay with
Ubuntu and its derivatives:

* Don't upgrade
* Install a parallel desktop environment, e.g., kubuntu-desktop, and
evaluate its workflow with your current one
* Pin (apt-dpkg) your desktop environment and perform an upgrade
* Upgrade only your development tools

Granted, some of those options require more intervention.

-Dan

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Re: Natty with Stock Linux 2.6.38 Awful - Custom 2.6.39-rc5 Great

2011-04-27 Thread Daniel Chen
On Wed, Apr 27, 2011 at 10:53 PM, Tony Atkinson
tatkinson...@googlemail.com wrote:
 Tomorrow, I'm going to be compiling a vanilla .38 kernel, to try and
 narrow down exactly where the issue with the natty kernel is, but
 thought I'd post here first, prior to filing a bug, just to make sure
 this is not a known issue

To note, vanilla mainline builds are available, too, for precisely
this sort of regression narrowing; see
http://kernel.ubuntu.com/~kernel-ppa/mainline/.

-Dan

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Re: RT_GROUP_SCHED kernel option makes JACK unusable in Ubuntu Natty

2010-12-15 Thread Daniel Chen
On Tue, Dec 14, 2010 at 11:33 PM, Ronan Jouchet ro...@jouchet.fr wrote:
 I confirm 2.6.37-9.22~ppa1 from abogani PPA (RT_GROUP_SCHED disabled)
 works fine.

 I will leave the decision to Alessio (or somebody else from the kernel
 team) to close or not
 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/690010 , since a
 proper solution implementing cgroups management may be preferable and
 implementable.

As Paul alludes to, changing this Ubuntu kernel config option doesn't
resolve the real issue, and I wouldn't be keen on changing the option
that clearly works for other applications.

-Dan

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Re: udev ignore_device removed why?

2010-11-18 Thread Daniel Chen
On Thu, Nov 18, 2010 at 2:55 PM, pere lengo perele...@hotmail.com wrote:
 I've tried to make a rule for udev, but it doesn't work because in version
 10.0.4 the OPTION ignore_device has been removed.

Rationale given in the release notes for udev 148, see
http://lwn.net/Articles/364728/

 Would next udev version allow to use ignore_device??

Highly unlikely

-Dan

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Re: is python-pymtp maintained?

2010-09-25 Thread Daniel Chen
On Sat, Sep 25, 2010 at 9:30 AM, Fergal Daly fer...@esatclear.ie wrote:
 https://bugs.launchpad.net/ubuntu/+source/pymtp/+bug/575091

 is 4 months old, has 2 patches to fix this library (which is
 completely broken in lucid) but no one on the Ubuntu side has
 responded,

Alas, I'm sure this is due to resource constraints (i.e., fewer active
and able maintainers in Ubuntu for the huge pool of universe sources).
 Thanks for raising it, however.

Looking at the patch, much of it seems to be unnecessary whitespace
changes, which explodes the diff.  The actual changes themselves seem
reasonable, but there needs to be a lot of testing for both Maverick
and Lucid at this point.  If patches can be generated against the
Maverick and Lucid sources separately and posted to the bug report,
that would help tremendously.  The changes would need to include the
relevant bit from Debian's 0.0.4-2 upload, too.

Best,
-Dan

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Re: is python-pymtp maintained?

2010-09-25 Thread Daniel Chen
On Sat, Sep 25, 2010 at 10:17 AM, Fergal Daly fer...@esatclear.ie wrote:
 The first attachment is a patch (not a new version of the file) and
 has no extraneous whitespace.

I see only one attachment for that bug report,
https://bugs.launchpad.net/ubuntu/+source/pymtp/+bug/575091/+attachment/1535455/+files/pymtp_patched.py,
which doesn't seem to be a patch but in fact a complete source file
(sha256sum):

4ce862a14a0041bb9b6c447959930482291b8d73ef6ed7cfb1b0b2e03b3d5543
pymtp_patched.py


 So I claim that no testing whatsoever was done on this library before
 now, I don't see why that suddenly becomes a barrier,

I believe there has been a misinterpretation of my response, which was
simply a set of points to take into consideration when going through
the StableReleaseUpdates procedure.

Best,
-Dan

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Re: Defaults and behaviour of PC Speaker in future Ubuntu *Server* releases

2010-09-12 Thread Daniel Chen
On Sun, Sep 12, 2010 at 2:29 AM, Yaniv Aknin ya...@aknin.name wrote:
 (2) Due to unknown reasons, removing the blacklist is insufficient to return
 PC speaker functionality, as can be seen at #398161 and especially #486154.

pcspkr doesn't drive all hardware, and the emergence of HDA (and
consequently the corresponding beep driver) has further complicated
that picture.  Fortunately, one can reenable the beep driver at
runtime via a sysfs echo.  Of course for non-HDA hardware the picture
is still as craptastic.

 Which leads me to argue:
 (2) Regardless of whether the PC speaker is good or bad, it shan't be
 *difficult*. If a Desktop user wants the PC Speaker to work, it should be as
 simple as removing a line in the blacklist, at worst (could be even easier).
 Since this is not about the technical act of fixing the bug but about the
 policy act of deciding what to do about it at all, I'm taking this here.

There are, of course, uses of the speaker and/or beep.  Changing the
default behavior belongs in a script, and whether the speaker and/or
beep being disabled is a bug is actually up for discussion - perhaps
not in this thread - but assuming it isn't a bug, what needs to be
added to the server seed to [run a script to] reenable it?

Best,
-Dan

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Re: Defaults and behaviour of PC Speaker in future Ubuntu *Server* releases

2010-09-12 Thread Daniel Chen
Daniel Chen writes:
 Fortunately, one can reenable the beep driver at
 runtime via a sysfs echo.

On Sun, Sep 12, 2010 at 12:15 PM, Akkana Peck akk...@shallowsky.com wrote:
 Could you elaborate on that? I'm not having much luck googling,
 just a few people saying they couldn't find a command that worked.

Noting that my above statement refers specifically to HDA beep, please
see bug 582350 as pertains to Maverick.  The sysfs bit is
/sys/module/snd_hda_intel/parameters/beep_mode.

Also note that the entire beep maze is both hardware- and
configuration-dependent.


 The lack of beep is definitely specific to Ubuntu kernels.

I haven't done due diligence regarding inspecting kernel configs for
other popular modern desktop distros, so I don't know offhand if their
values match Ubuntu's.  I also don't know if others blacklist
identical kernel modules.


 If I build my own kernel.org kernel, beeps work fine; but Ubuntu
 kernels, even with the pcspkr module loaded, mostly don't beep.

Are you using an identical kernel configuration?  What are the
remaining details of the test environment?

I have a feeling this discussion is beyond the scope of this thread,
so please feel free to continue it on the kernel-team or
ubuntu-audio-dev mailing list.


 I'd love to see a reliable/scriptable way of enabling pcspkr,
 as I'm sure would the other people commenting in the various bug
 reports. Bug 486154, especially, is full of suggestions on elaborate
 workarounds that work for some people but not for others.

Right, this is due to hardware and configuration maze (hence the
effort to unify it in 2.6.35+).

Best,
-Dan

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Re: is sawfish maintained on ubuntu?

2010-07-01 Thread Daniel Chen
On Thu, Jul 1, 2010 at 11:23 PM, Fergal Daly fer...@esatclear.ie wrote:
 https://bugs.launchpad.net/ubuntu/+source/sawfish/+bug/433358

Thanks for bringing this bug to our attention.  I have taken ownership
of this report, have isolated a git changeset, and will be working
through a StableReleaseUpdate candidate for Maverick, Lucid, and
Karmic.

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Re: Is Ubuntu commited to free software?

2010-06-09 Thread Daniel Chen
On Wed, Jun 9, 2010 at 12:57 PM, Danny Piccirillo
danny.picciri...@ubuntu.com wrote:
 * This would require supporting the linux libre kernel (it doesn't have to
be by default, but the option should be available.

On Wed, Jun 9, 2010 at 1:19 PM, Scott Kitterman ubu...@kitterman.com wrote:
 No. It doesn't. That kernel removes the ability to run non-free drivers. The
 exact same amount of non-free code runs if you don't have any installed.
 Just about the last thing Ubuntu needs is the maintenance overhead of
 another kernel that only serves ideological purposes.

Noting what Scott mentioned above, I'll add that *changing hardware
enablement fundamentally alters an Ubuntu experience*.

Let's pause and think on what removing support for non-Free drivers
actually means. Suppose you're low-vision/hard-of-seeing/blind, and
you need a screen reader. Now let's remove a nontrivial number of
sound driver blobs[0]. That pretty much neuters any sort of session
accessibility you're going to get, no?

That was a fairly specific use case, but it's fairly trivial to see
how providing an easy path for people to install these markedly
different *foundational* components into an Ubuntu system is a very
slippery slope to madness.

Best,
-Dan


[0] Now, I know that there is the option delimited within the F6 menu,
but Linux-libre appears to be much more comprehensive, e.g.,
http://www.fsfla.org/svn/fsfla/software/linux-libre/scripts/deblob-2.6.34.

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Re: Linux Kernel

2010-06-04 Thread Daniel Chen
On Fri, Jun 4, 2010 at 5:05 AM, Volovikov Taras wizard160...@mail.ru wrote:
 Which version of the kernel you plan to include in Ubuntu 10.10?
 I believe that if you want to use btrfs, the better it will be 2.6.35 or
 later.

https://lists.ubuntu.com/archives/ubuntu-devel/2010-May/030764.html

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Re: Removal of PulseAudio from Ubuntu

2010-05-16 Thread Daniel Chen
On Fri, May 14, 2010 at 6:53 PM, I.E.G. kopci...@gmail.com wrote:
 Sorry for the rambling , non technical dissertation but I felt we the
 users(if I dare speak for more than myself)  needed to be heard .

For a long time I have felt that there is an artificial disconnect
between users and developers. Since when are developers not users?
Of course people want things to Just Work and will choose the path of
least resistance, but it's worth pointing out that in the case of
Linux audio the paths are neither straight nor understandable.

In the case of stuttering audio on modern laptops and desktops, a fix
was committed upstream last Tuesday. It may be integrated into Lucid's
kernel after sufficient testing. Certainly it will land for Maverick.

The best path forward is to file a bug against the alsa-driver source
package in Launchpad so that we have your specific hardware
information to effect workarounds and/or fixes.

Best,
-Dan

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Re: Including a system-wide pulseaudio equalizer

2010-05-12 Thread Daniel Chen
On Wed, May 12, 2010 at 11:03 AM, sam tygier samtyg...@yahoo.co.uk wrote:
 The solution to bugs like this is to make apport upload the equalizer 
 settings (i think it already does with the volume settings).

It uploads the *alsa* mixer perspective, which may be desynced from
pulse's idea of those settings (which shouldn't be the case, but...).

Best,
-Dan

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Re: Including a system-wide pulseaudio equalizer

2010-05-12 Thread Daniel Chen
On Wed, May 12, 2010 at 11:36 AM, sam tygier samtyg...@yahoo.co.uk wrote:
 is it technically possible/easy to upload pulse's state as well?

Sure, pacmd list-sinks.

Best,
-Dan

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Re: Including a system-wide pulseaudio equalizer

2010-05-11 Thread Daniel Chen
On Tue, May 11, 2010 at 8:15 AM, Chandru chandru...@gmail.com wrote:
 I've been
 using https://code.launchpad.net/~psyke83/+junk/pulseaudio-equalizer with
 Lucid and found it sufficiently capable.  It will be really nice if this can
 be included in universe for Maverick and gradually made available as part of
 the default installation in future releases once it gets further polished
 with community's feedback.

Two thoughts:
This would entail switching to the master (or trunk) branch of
upstream git, correct? Maverick currently tracks the stable-queue
branch.

Also, this should be packaged and submitted for inclusion into the
Ubuntu repositories following procedure
(https://wiki.ubuntu.com/UbuntuDevelopment/NewPackages).

Best,
-Dan

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Re: Including a system-wide pulseaudio equalizer

2010-05-11 Thread Daniel Chen
On Tue, May 11, 2010 at 10:30 AM, Chandru chandru...@gmail.com wrote:
 My suggestion was to just get the app into the official repos initially.
  Based on Daniel's reply I've sent a mail to the developer suggesting him to
 submit the application.

It would be even more useful to work alongside him to get it into Maverick.

Best,
-Dan

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Re: Including a system-wide pulseaudio equalizer

2010-05-11 Thread Daniel Chen
On Wed, May 12, 2010 at 1:08 AM, Conn O'Griofa connogri...@gmail.com wrote:
 [1] This branch may be obsolete now that the equalizer is included
 upstream by default - I haven't followed developments recently. Here
 it is: http://gitorious.org/pulseaudio-equalizer

Right, which is now in the master trunk of upstream pulseaudio git.

Best,
-Dan

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Re: Removal of PulseAudio from Ubuntu

2010-05-06 Thread Daniel Chen
On Thu, May 6, 2010 at 1:19 AM, Ryan Oram r...@infinityos.net wrote:
 Until the implementation of OSS4 is ready and tested, infinityOS will
 continue to use pure ALSA.

How will you determine that the implementation of OSS4 is ready and tested?

Best,
-Dan

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Re: RE: Removal of PulseAudio from Ubuntu

2010-05-06 Thread Daniel Chen
On May 6, 2010 8:11 PM, Chris Jones chrisjo...@comcen.com.au wrote:

Since upgrading to Lucid, I can no longer use Pulse audio with VLC as it
skips beyond use. I have to configure VLC to putput to ALSA as an
alternative which works perfectly.

Up until Lucid's release, I've had no real big issues with Pulseaudio.


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Re: RE: Removal of PulseAudio from Ubuntu

2010-05-06 Thread Daniel Chen
(Grr, Android mail clients)

Have you filed a bug report against the alsa-driver source (or alsa-base
binary) package?

On May 6, 2010 8:11 PM, Chris Jones chrisjo...@comcen.com.au wrote:

Since upgrading to Lucid, I can no longer use Pulse audio with VLC as it
skips beyond use. I have to configure VLC to putput to ALSA as an
alternative which works perfectly.

Up until Lucid's release, I've had no real big issues with Pulseaudio.


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Re: Removal of PulseAudio from Ubuntu

2010-05-05 Thread Daniel Chen
On Wed, May 5, 2010 at 7:13 PM, Ryan Oram r...@infinityos.net wrote:
 It is 2 years old, but the facts in the article above are still
 completely true. PulseAudio has made essentially zero progress in the
 last 2 years, which is why it should be abandoned.

I feel I am at least somewhat qualified to speak on this subject,
having been involved in the (ill?) integration of PA in Ubuntu many
releases ago and for x86 driver quirking many years prior and since.

Zero progress really is stunningly ill-informed. Yes, there remain
problems with BIOS vendors, mainboard integrators, audio drivers,
alsa-lib, PulseAudio, application integration, and so on, but to claim
zero progress for any part of the audio stack is quite off the mark.
The fact of the matter is that audio deficiencies in any popular Linux
distribution raise polemics, none of which is truly on-mark. Perhaps I
can do a better job of documenting efforts to combat deficiencies, so
this thread is as good a place as any to continue.

Put another way: there are plenty people who decry the sinkhole, but
who's actually fixing the structural problems that led to the
sinkhole?

For the past ten years I have seen similar cycles of specifications
being published (along with errata) and OEMs leaping to implement
attractive features at the expense of doing a good job documenting
their quirks (much less implementing standard quirk interfaces -- and
vendors of usb components are only slightly less worse than pci
components). This leads to spaghetti code in audio drivers, some of
which are marginally less hair-loss-inducing than others. The
traditional ALSA driver semantics are interrupt-based. PulseAudio,
with its emphasis on preventing excessive power consumption through
timer-based buffering, expects the underlying driver to duly provide
precise and accurate information. For the past three years this
approach has utterly destroyed any semblance of stability in the
audio stack -- for good reason: the drivers incorrectly assumed the
underlying hardware duly acted precisely and accurately. We've been
fixing these drivers as such symptoms appear, and we're by no means
finished -- nor do I expect we'll ever reach such a milestone.

What happens when you have hardware or a driver that acts imprecisely
and/or inaccurately? You get some utterly disappointing results as
exposed through PulseAudio's glitch-free (standard in Karmic and
Lucid) mode. Does this mean that PA is faultless? Of course not; we
should do a better job, among many things, by reverting to the
traditional interrupt mode. Does this mean that the driver should be
fixed? Absolutely. Does replacing ALSA wholesale with OSS resolve the
issue? No; we'd only replace one problem domain with another, and we'd
still need to maintain all versions with ALSA support *and* continue
forward with hardware enablement. This means that you now have to sets
of mouths to feed. Various upstream developers of programs
incorporated in Ubuntu don't necessarily address the complexities of
having *supported* derivatives that deviate from Ubuntu's base, and
this issue is particularly telling with respect to the audio stack.

Canonical has/will recently brought/bring on board knowledgeable audio
hackers. I expect the situation to improve, not worsen. While I
applaud your efforts to bring a more usable audio experience
out-of-box to casual users, I cannot help but muse that our
(volunteer) efforts are better spent improving parts of the stack that
most need help: ALSA driver and either PulseAudio or Jack Audio
Connection Kit.

 Open up any emulator program on Ubuntu and it will skip like mad. Same
 with many native games such as Lincity-ng or OpenSonic. This is as
 most games on Linux depend on sound timing, which the high latency
 nature of PulseAudio messes up.

PA is happy to grant high latency by default because doing so is more
friendly to lower power consumption. Various pulse clients (whether
frameworks like SDL or OpenAL-soft) have been fixed to properly
specify latency requirements and act accordingly.

I cannot emphasize enough the need to fix the underlying drivers.

 A good possible solution would be switching to OSS4 and writing an
 audio wrapper for it to make it easier for developers to use. OSS4 is
 much more simplistic and (arguably) cleaner designed then ALSA, which
 would likely made this an easier task.

Your distribution seems like a great place to test such a hypothesis.
Please test backward compatibility with native ALSA and PulseAudio
applications, too!

Best,
-Dan

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Re: Removal of PulseAudio from Ubuntu

2010-05-05 Thread Daniel Chen
On Thu, May 6, 2010 at 12:58 AM, Ryan Oram r...@infinityos.net wrote:
 I apologize if I was frank, but problem with PulseAudio is that it
 does not always work with existing code.

Such is the pain of new code. We face this continually in ALSA and
PulseAudio alike, and I don't see how any new framework can be devoid
of such pain.

 Before OSS4 is implemented in infinityOS, I will make sure that
 everything works out of the box with the OSS4 audio system. It will be

What are your test plans for forward compatibility (which is the
single largest pain for ALSA)?

 subject to a considerable amount of testing. This is partly to
 maintain 100% binary compatibility with Ubuntu. I wish for infinityOS
 to continue to work with the Ubuntu repos and PPAs as I feel
 duplication of effort is unnecessary.

Leaving aside the nontrivial decision of selecting which PPAs to
maintain compatibility with, it's worth noting that you'll be facing a
moving target. Which Ubuntu releases do you intend to support in terms
of compatibility?

Finally, maintaining 100% compatibility is unrealistic. By virtue of
using OSS instead of ALSA, you've already increased the test surface
enormously such that you'll need to modify certain base packages (if
you intend to do things in a manner consistent with Debian Policy).

Best,
-Dan

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Re: lucid testreport upgraded 24 march 2010 from karmic

2010-03-24 Thread Daniel Chen
On Wed, Mar 24, 2010 at 3:22 AM, Rene Veerman rene7...@gmail.com wrote:
 - soundblaster doesn't work. volume levels are good, card reports no
 error (in gui at least), yet no sound leaves the speakers...

The above description is much too vague. Would you please file a bug
report against alsa-driver? (If you have an X-Fi, you may be out of
luck unless you were unlucky enough to have one driven by ca0106...but
then sounds would be audible).

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Re: lucid testreport upgraded 24 march 2010 from karmic

2010-03-24 Thread Daniel Chen
On Wed, Mar 24, 2010 at 1:18 PM, Rene Veerman rene7...@gmail.com wrote:
 can i assume 'ubuntu-bug alsa-driver' will include the specs of both
 my sound cards?

It will include the necessary information provided that there is not
something more nefarious occurring.

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Re: If Luicd ia a LTS......

2010-03-23 Thread Daniel Chen
On Tue, Mar 23, 2010 at 12:07 PM, schoappied schoapp...@gmail.com wrote:
 We all remembered the failure of Hardy as LTS.

Firstly, I am going to warn you up front that this response will seem
largely defensive, because I have not seen any contributions from you
in Lucid's sound stack integration. I am happy to stand corrected,
however. That said --

Seriously? Failure? Granted, there are integration problems (still,
thanks to derivatives choosing not to ship PulseAudio by default) in
8.04.y and 10.04, but to call the former a failure based on foolhardy
perception is rather...foolhardy. Yes, some (non-trivial number) have
issues with their sound drivers. However, plenty of people are using
Hardy on their desktops with nary a concern. And let's not count the
server users, though I don't think you were precisely arguing that
point. (At least I hope you weren't.)

 Bleeding edge sound server Pulseaudio as default (sound horror). Stupid
 decision imo to implement such a thing in a LTS release. Beta version of
 Firefox installed (browsing horror). Stupid decision imo to release a
 LTS with a beta browser.

Those decisions were not made lightly. Given the scope of upstream
support for those programs, they were the right way forward.

 At that time the public opinion about Windows Vista was very negative,
 but Ubuntu missed the chance there and released a LTS version which was
 not ready for the Desktop. The pulseaudio problems are not even really
 solved atm (many maudio cards didn't work with pulseaudio on Ubuntu
 9.10). Let's pray they have fixed it when Lucid comes out and that they
 never ever will such Hardy mistakes again!

It's highly probable that your poster child, M-Audio cards, will
require manual configuration in 10.04 as well. It's well-documented on
the Ubuntu wiki under the KarmicCaveats page linked from
DebuggingSoundProblems. The point is that neither upstream [ALSA,
PulseAudio] has agreed on a fix. All we have are workarounds that make
[both] upstream[s] unhappy. You might argue that it's better to ship a
better user experience out of the box -- and I won't precisely
disagree -- but volunteer distributors and maintainers have to balance
support lifetimes and correctness with evolving codebases. I hope you
understand that shoehorning a workaround is not the right approach,
particularly not for an LTS.

 There are signs that they learned a bit. Lucid seems to be based on
 Debian testing and JACK seems to be in main now, which makes it more
 easy to use Jack with pulseaudio for instance...

Yes, yes, let's blast people for being slow to learn. You are
forgetting that the difficult work of integrating these bits was done
largely by community members who grew tired of people such as yourself
just whinging. Please, if you want something to work, pitch in and
help fix it.

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Re: idjc doesn`t work with voip since karmic

2010-02-11 Thread Daniel Chen
On Mon, Feb 8, 2010 at 8:33 AM, Ralf Eleven ral...@gmx.net wrote:
 The voip-function in idjc doesn't work.
 It should work like this:
 http://www.onlymeok.nildram.co.uk/voip.html

This approach will fail because j-a-c-k has not been repromoted to
main yet, and thus alsa-plugins cannot be compiled with j-a-c-k
support and is missing the plugin.

 But since Ubuntu karmic, which works with pulseaudio, and also since
 Debian squeeze there are no ~/.asoundrc files, because there is no
 program asoundconf in the packet alsa-utils.

There is not an ~/.asoundrc by default /ever/. It's a user-created
file (whether by hand or by some utility). asoundconf is no longer
maintained and was removed from the alsa-utils source package, but one
can always construct an asoundrc by hand.

The bit about PulseAudio is not really relevant; the real cause is due
to missing j-a-c-k in main, so PulseAudio cannot be compiled with
j-a-c-k support, etc. Even if j-a-c-k is available in main, you'd
still need to configure PulseAudio to use j-a-c-k.

(There are unofficial packages that have j-a-c-k support, but they
should be unnecessary for Lucid.)

 I also tried to delate pulseaudio and to install asoundconf from older
 sources manually, but first it wouldn't be a nice way and second it also
 doesn't worked.

Again, PulseAudio really isn't the cause here but suffers indirectly.

 If pulseaudio is the soundserver of the future, how to work with voip in
 idjc and how to record voip?

Help get j-a-c-k back into main.

Best,
-Dan

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Re: upstream for acl?

2010-02-11 Thread Daniel Chen
On Thu, Feb 4, 2010 at 4:11 PM, Larry D'Anna la...@elder-gods.org wrote:
 Where can i find the upstream for acl?  The package says it's at the xfs
 project, but I can't find any source for getfacl/setfacl there.  Thanks.

See /usr/share/doc/acl/copyright:

It can be downloaded from http://mirror.its.uidaho.edu/pub/savannah/acl/;

One may also use apt-get source acl presuming there's an active
deb-src entry for main. A simple find over the extracted source
directory reveals the source:

acl-2.2.49 $ find -name '*getfacl*'
./getfacl
./getfacl/getfacl.c
./test/sort-getfacl-output
./test/getfacl-noacl.test
./test/getfacl-recursive.test
./man/man1/getfacl.1

Best,
-Dan

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Re: upstream for acl?

2010-02-11 Thread Daniel Chen
On Thu, Feb 11, 2010 at 12:38 PM, Larry D'Anna la...@elder-gods.org wrote:
 thanks, but I guess what i should have said is, I want to find the maintainer.
 I found a bug in it and i want to give him a patch.

Either Nathan Scott nathans at debian dot org or Anibal Monsalve
Salazar anibal at debian dot org (see PTS,
http://packages.qa.debian.org/a/acl.html)

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Re: upstream for acl?

2010-02-11 Thread Daniel Chen
On Thu, Feb 11, 2010 at 6:27 PM, Larry D'Anna la...@elder-gods.org wrote:
 so there's no upstream beyond the debian maintainers?

Please note that one of the maintainers, Nathan, appears to (have)
work(ed) for SGI.

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Re: General graphic equaliser in Pulse Audio for Lucid

2010-02-02 Thread Daniel Chen
On Fri, Jan 29, 2010 at 3:48 AM, Richard Didd
richard.d...@ttplabtech.com wrote:
 Regarding the next release of Ubuntu (Lucid), I was wondering if the most
 recent version of Pulse Audio will be included.

Lucid already ships the most current stable-queue branch of PA (which
does not contain the eq code). There are no plans to ship what's in
master (which does contain the eq code) unless there is a formal
release of it made very soon. Because Lucid is an LTS, we're focusing
on stability not the addition of features.

 Is this something that we can include once development has been completed
 (there are a few bugs at the moment).

The target release should be 10.10 (Lucid+1).

Best,
-Dan

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Re: Can we get ntfs-3g 2010.1.16 in Lucid?

2010-01-20 Thread Daniel Chen
On Wed, Jan 20, 2010 at 5:24 PM, Jonathon Fernyhough
j.fernyho...@gmail.com wrote:
 I'd second this. I've done some (admittedly unscientific) testing
 running two VirtualBox VMs concurrently off the same NTFS disk*
 (Karmic and Windows 7 on a Lucid host). With 2009.4.4 there was
 significant lag; programs and menus took a noticeable time to appear.
 After updating to 2010.1.16 both are purring along nicely, even when
 the host has disk activity (such as aptitude installing a kernel
 update) which previously made a single VM lag.

 Considering how trivial it was to install from source it can't be
 difficult to include in Lucid? Or do we need to file a request
 somewhere?

There is already
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=560685, so I
recommend working as quickly and diligently as possible to get it into
Debian testing.

Best,
-Dan

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Re: Versioning for VLC in Lucid Universe

2010-01-13 Thread Daniel Chen
On Wed, Jan 13, 2010 at 12:43 PM, Forest Mars for...@mnn.org wrote:
 Taking a look at http://packages.ubunut.com/lucid/graphics/vlc it indicates
 the version there is 1.0.4.

Generally, don't rely on packages.uc to be the canonical listing. Use
LP instead:
https://launchpad.net/ubuntu/+source/vlc

 However when I install from Lucid Universe, I am seeing that it is version
 1.0.3.
...
 Also, dpkg -l | grep vlc indicates:
 ii      libvlc2                              1.0.4-2ubuntu1
             multimedia player and streamer library
 ii      libvlccore2                          1.0.4-2ubuntu1
             base library for VLC and its modules
 rc      vlc                                  1.0.3-1ubuntu2
             multimedia player and streamer

The available version of the vlc metapackage isn't actually version
1.0.3-1ubuntu2. This dpkg output simply confirms that the removed (but
not purged) version on your system is that.

You can always confirm via apt-cache policy vlc what /your/ system
thinks is available.

Best,
-Dan

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Re: proper procedure regarding bug reports

2010-01-06 Thread Daniel Chen
On Wed, Jan 6, 2010 at 10:47 AM, Shentino shent...@gmail.com wrote:
 Unfortunately, it recently got the wave-off as now it no longer builds under
 Lucid and I'm being asked to test a new upstream version, when I know that

I uploaded 3:4.7.0-1ubuntu1 last night, so if you're willing to respin
your patch against that source version and verify that it works as
intended, I'll make sure it gets uploaded.

-Dan

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Re: proper procedure regarding bug reports

2010-01-06 Thread Daniel Chen
On Wed, Jan 6, 2010 at 11:44 AM, Patrick Freundt
patrick.freu...@googlemail.com wrote:
 You should not only rant at people like Richard Stallman you also need
 to provide patches like him.

I'll ask because the phrasing is ambiguous, and I can't tell whether
my cynicism radar is errant.

Are you implying that people with upload privileges should be
forward-porting patches, etc., too? If so, that's a noble sentiment
but sadly unrealistic. If, on the other hand, you are implying that
everyone (i.e., the community that does not have upload privileges to
Ubuntu proper) could do a better job of pitching in to forward-port,
that's quite on the mark.

-Dan

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Re: Midnight Commander: bug report and patch

2010-01-05 Thread Daniel Chen
On Thu, Dec 24, 2009 at 11:37 AM, Ben Okopnik b...@linuxgazette.net wrote:
 I tried reporting this bug in Launchpad more about a week back, and
 never got any response. Since it's a pretty big one (zip file contents
 not showing up), I figured I'd send it here; hopefully, someone finds it
 helpful!

There seems to be a workaround in place already, but the actual
culprit definitely wasn't fixed. Thanks for chasing it down! I've
merged your patch (diff -u tends to be friendlier for me) in the
latest upload to Lucid, 3:4.7.0-1ubuntu1.

Best,
-Dan

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Re: Qt Creator

2010-01-04 Thread Daniel Chen
On Sat, Jan 2, 2010 at 7:07 AM, Dmitry Unruh dmitryun...@googlemail.com wrote:
 Why in the repositories of Ubuntu Qt Creator is still version 1.2 and not 1.3?

$ rmadison qtcreator
 qtcreator | 1.2.1-3ubuntu1 | karmic/universe | source, amd64, i386
 qtcreator | 1.3.0-0ubuntu2 | lucid/universe | source, amd64, i386

Lucid has 1.3.0; perhaps you'd like to request a backport to
karmic-backports? See
https://help.ubuntu.com/community/UbuntuBackports#How to request new
packages

Thanks!
-Dan

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Heads up: powerdown changes to alsa-base in Lucid/10.04

2009-12-30 Thread Daniel Chen
Hi, folks,

[a more complete version of my announcement in #ubuntu-devel on Freenode]

Based on the abysmal feedback that we received for Karmic/9.10
regarding powering down HDA controllers after ten idle seconds[0],
I've reverted the change in the most recent upload of alsa-driver
1.0.22.1 to Lucid/10.04 and, in doing so, restored the behavior
shipped in Jaunty/9.04. So, at the cost of less efficient battery use
[for unplugged laptops] one will no longer hear the annoying crackling
and popping associated with these HDA controllers.

This change was also driven by the fact that Lucid's shipped kernel is
highly unlikely to have the necessary patches backported. The good
news, OTOH, is that over the past month my fixes for these symptoms
(including the infrastructure) have landed in alsa-driver 1.0.22.1 and
will be available in crack-of-the-day alsa-driver snapshot builds soon
and/or via linux-backports-modules-alsa-lucid-generic. Additionally,
there is ongoing work to power down additional nodes for the HDA
codecs; please find me on IRC (or leave a note via memoserv) if you
wish to help roll out these fixes for your particular hardware. Please
have your /proc/asound/card*/codec* handy/pastebinned.

Thanks,
Dan

[0] https://lists.ubuntu.com/archives/ubuntu-devel-discuss/2009-May/008239.html

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Re: karmic: libghc6-src-exts-dev install failed: missing dependency

2009-12-18 Thread Daniel Chen
On Mon, Dec 14, 2009 at 11:48 AM, Benedikt Ahrens
benedikt.ahr...@gmx.net wrote:
 installation of libghc6-src-exts-dev fails because of unmet dependencies.

 Correponding bug report:
 https://bugs.launchpad.net/ubuntu/+source/haskell-src-exts/+bug/496274

As I commented, for Karmic you need a simple no-change source rebuild,
which makes this a fairly straightforward candidate for a
StableReleaseUpdate.

-Dan

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Re: Add miredo to the default install.

2009-12-16 Thread Daniel Chen
On Wed, Dec 16, 2009 at 6:04 PM, Alain Kalker m...@dds.nl wrote:
 The trouble is: IPv6 is coming, whether anyone cares or not. IPv4 is
 rapidly running out of addresses, so sooner or later we're going to have
 to switch. Gently coaxing users to get acquainted with IPv6 is IMO a
 much better idea than their ISPs dropping letters in their mailboxes one
 day stating Either switch to IPv6 NOW or lose connectivity.

An implication that the 10.04 LTS desktop support timeframe will see
an exhaustion of IPv4 addresses would be entirely premature.

-Dan

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Re: Add miredo to the default install.

2009-12-14 Thread Daniel Chen
On Mon, Dec 14, 2009 at 3:24 PM, Harry Strongburg lolwut...@gmail.com wrote:
 Is anyone else in favour of adding miredo to the default Ubuntu install? 
 Why or why not?

Despite using miredo for some time, I propose postponing inclusion of
this package in the default desktop seeds until after 10.04.  My
(perhaps flawed) impression is that many desktop users would not care
about IPv6.

-Dan

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Re: karmic trashed in Tomshardware.com

2009-12-07 Thread Daniel Chen
On Mon, Dec 7, 2009 at 10:07 PM, Tim Hawkins tim.hawk...@me.com wrote:
 Given the amount of discussion relating to problems with the nVidia drivers
 in Karmic, could this be a factor in this review.?

Given the number of bugs filed incorrectly against the Ubuntu
PulseAudio source package involving proprietary graphics drivers, I'm
inclined to think there is no mere coincidence. Then again, I've been
head-down fixing linux and pulse issues lately, so add your mountain
of salt...

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Re: icewm_1.2.37+1.3.4pre2-3_amd64.deb broken since Karmic release

2009-11-22 Thread Daniel Chen
On Sun, Nov 22, 2009 at 4:01 PM, Christian Schugitsch i...@schugy.de wrote:
 Maybe someone has noticed this one:

 https://bugs.launchpad.net/ubuntu/+source/icewm/+bug/458100

Yes, and I've requested additional information.

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Re: PulseAudio Applets

2009-10-27 Thread Daniel Chen
On Sun, Oct 25, 2009 at 6:38 AM, Kyle Amadio kyle.ama...@itvss.com.au wrote:
 Has anyone else got this problem? - none of my PulseAudio applets work -
 none of them

A bit more detail -- e.g., bug reports -- would be useful.

-Dan

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Re: cancel the 9.10 release... it is not ready

2009-10-26 Thread Daniel Chen
(Sorry for top-posting; bad MTA)

Have you filed any bugs WRT PA and mpd? AFAICT, those issues are integration
ones, not anything at fault in PA, and there are several workarounds
allowing a user to output to PA through mpd.

As for Adobe Flash, there is anecdotal evidence that nspluginwrapper is
causing issues. If you're on i386, try using adobe-flashplugin (from the
partner repository) instead of flashplugin-installer (you'd need to purge
this latter package). If you're on amd64, try using the native 64-bit alpha
refresh from Adobe's web site instead of flashplugin-installer.

Finally, without additional initialization information from PA, we can't
diagnose why your sound devices aren't being recognized by PA. Please see
https://wiki.ubuntu.com/PulseAudio/Log .

Thanks again for helping improve Ubuntu!

-Dan

On Oct 26, 2009 7:08 AM, Dirk Hoeschen m...@dirk-hoeschen.de wrote:

Hi all,

I am using Ubuntu since 3 Years. I would consider
myself as a advanced linux-user and professional software developer.

Just to check the new version, I migrated two 9.4 Systems to 9.10
and installed a Karmic Beta on a fresh system.

Now (3 days before the release) karmic seems to be unready.
Even if the system is stable, I found many bugs and inconsistent
issues.

On several systems there are error messages with timeouts.
waiting for /disk/uuid/23wefsdfsdtgqweqrqwe or so.
When the ugly white ubuntu logo disappears i get some normal
status messages and the the screen gets dark for 15 Seconds
until dark and unfriendly login screen appears. After all...
I have the imagination, that the boot process is not faster.

The user dialogs for several subsystems are not ready yet. For example...
the old dialogs for setting detailed user rights or changing the welcome
screen are not included.

On two systems with Nvidia cards, the hardware detection tells me
that no proprietary drivers are needed. Nvidia drivers must be
installed by hand.

The greatest mess is pulseausio. Usually I uninstall pulseaudio.
Otherwise I can not use mpd and flash crashes randomly.
In Karmic pulsaudio seems to be even more buggy.
Eample: I have a realtek onboard soundcard and an a USB headset.
Alsa seems to initialize both cards correctly.
But pulseaudio randomly detects sometimes only one card, both cards
or no card at all. Why don't you use alsa by default?

I really like to persuade people to use ubuntu. But as long
as it looks unready it will strengthen their opinion, that linux
is only for nerds. Pleas learn your lesson from the debian
community and release a new version only if its ready.

-- 
regards... Dirk


Dossestraße 6
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Re: PulseAudio Managers

2009-10-19 Thread Daniel Chen
On Tue, Oct 20, 2009 at 12:14 AM, Paul Smith p...@mad-scientist.us wrote:
 time, but this change looks like a dud to me.

Clearly the right way to debug this is to comment out the patch in
debian/series and see why pa_streq() is being passed crap. Anyone with
bt hardware and valgrind up for it?

http://launchpadlibrarian.net/32493850/Stacktrace.txt

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Re: Pulse audio being disabled

2009-10-15 Thread Daniel Chen
(MTA constraints)

What do you mean by disabled?

On Oct 15, 2009 8:27 AM, John Vivirito gnomefr...@gmail.com wrote:

I have seen in last few releases that PA gets disabled when i
reboot. This is not due to updates or reboot i dont think
since it happens all the time after updates than reboot.


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Re: Karmic Usplash update from 0.5.4.0 to 0.5.4.1 on 10/9/09

2009-10-13 Thread Daniel Chen
On Fri, Oct 9, 2009 at 2:13 PM, Thomas Doyle t...@rochester.rr.com wrote:
 Today  an update of Karmic Usplash causes my Ctrl+Alt+F1-F6 to show
 garbled symbols that look like blue Chinese letters and no Login Prompt.

 I narrowed it down to usplash by installing updates one at a time and
 then rebooting until the tty was no longer working.

 I was wondering if this had anything to do with the fact I have a Nvidia
 grapics card using the proprietary  185 drivers.

Are you certain that reverting the proprietary drivers to
185.18.36-0ubuntu3 results in the same corruption?

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Re: Pulse audio

2009-10-10 Thread Daniel Chen
2009/10/10 Lukas Hejtmanek xhejt...@ics.muni.cz:
 not so fast. gnome-settings-daemon tries to connect to pulse. multimedia keys
 work no more without pulse. gnome-volume-control does nothing without pulse.

I can't reproduce any of these symptoms with PA completely disabled
(no autospawn, PA killed).

 I had no problems with pure alsa.

Which of course has absolutely no bearing at all with whether ALSA
needs to be fixed.

-Dan

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Re: Pulse audio

2009-10-10 Thread Daniel Chen
2009/10/10 Lukas Hejtmanek xhejt...@ics.muni.cz:
 hmm, let me see. ALSA is broken. OK. How do we fix it? Insert new layer
 between ALSA and Apps. (PA). Oh no, PA is also broken. (as you stated that PA
 sooner or later solves its problems). So I should ask, why should we fix PA 
 rather
 than fix ALSA?

You don't seem to be reading closely. No one is fixing PA _instead of_
ALSA. Bugs are being fixed throughout the stack.

It's not a zero-sum game, so stop making it seem so.

-Dan

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Re: Pulse audio

2009-10-08 Thread Daniel Chen
On Thu, Oct 8, 2009 at 8:14 AM, Vincenzo Ciancia cian...@di.unipi.it wrote:
 The real problem that nobody seemed ever to be getting is that when you
 introduce huge regressions, then you probably should 1) either not
 distribute the software yet 2) or put more energy into bug fixing for
 the particular software, or at least have strong, or 3) have convincing
 reasons for forcing people to enjoy the regressions while they could
 as well live happily with the previously used one, or 4) make it easy
 for people to try the new solution, and if it fails, revert to the old

All valid points, but:

(1) is a catch-22: software does not get fixed if no one uses it. You
need real, difficult bugs to be reported, i.e., real testing.

(2) requires that clueful people dedicate resources. Resources are not
just economic. As I've stated previously, finding people who know the
stack intimately is nontrivial.

(4) has always been possible. It has always been easy to use
PulseAudio and discover its integration deficiencies. It has not
always been easy to disable PulseAudio, but it certainly remains
straightforward for a savvy user:

touch ~/.pulse_a11y_nostart
echo autospawn = no|tee -a ~/.pulse/client.conf
killall pulseaudio

 video calls. I never succeded in having it work for voice/video. And it
 is so badly broken in other areas I really wonder how you all can be so
 blind.

You seem to use you all as if you can't effect change within the
source development.

 Asking users to start contributing proves that there is no sufficient
 manpower to fix bugs. But perhaps people could live without the new
 software and related regressions? Now in the case of pulseaudio, for me,

There has always been a manpower issue. Realistically, people need to
step up. I'm a bit tired of spending all my free time doing this for
naught.

Living without PulseAudio is possible, but which bugs would you
prioritize? For instance, how easily would you find bugs in alsa-lib
and linux if you don't have hard but useful test cases? Empirically,
not easily at all. Significant bugs in both alsa-lib and linux sat
undiscovered and unfixed for _eleven years_ before PulseAudio finally
revealed them.

 But are there experimetnal measurements of the impact the introduction
 of pulseaudio had in hardy on users? Empirically, I saw that it broke
 skype for everybody I knew.

No need for experimental; just look at all the bug reports filed
affecting flashplugin-nonfree, nspluginwrapper, firefox-3.0, alsa-lib,
and pulseaudio. The sad thing is that we could have shipped a two-line
change to /etc/pulse/default.pa that would have alleviated nearly all
of the (users') showstoppers. The change remains in my
pulseaudio/hardy bzr branch.

Skype fundamentally misused the alsa-lib API. PulseAudio broke Skype
is a horrible non-example.

-Dan

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Re: Pulse audio

2009-10-08 Thread Daniel Chen
On Thu, Oct 8, 2009 at 4:23 PM, Martin Olsson mn...@minimum.se wrote:
 Sound was broken for me in all releases before hardy and then
 in hardy it worked _perfectly_ with Skype, Flash etc. Sound

Again, just because it worked for you does not mean that it wasn't
broken. If you care to look outside your hardware and your
configuration, you'll see it clearly.

 notice; ALSA did everything I ever wanted from it. Anyway,
 then came jaunty and it was broken again. Now in karmic
 alpha I got audio back but I got these extremely load sparks
 and cracks which give me a really poor audio experience.

I'm not surprised that ALSA did everything [you] ever wanted from
it. However, it does not change that there were latent bugs. Clearly
they existed despite ALSA working for you.

As for Karmic, are you using the ubuntu-audio-dev PPA? If not, you should.

 By now it's obvious that karmic as well with line up along
 with the releases that did not reach back up to the level
 where ALSA was for me. I honestly wonder, when will it stop?

Pretty clearly, you can continue to use Hardy. When you choose to test
a development release that becomes a stable release, you choose to
test an entirely different stack.

Developments are quick in the audio world. You may not follow the git
commits and the breakages - and you shouldn't be required to - but
just because things appear to continue to be broken doesn't mean no
one cares or no one is working to fix the regressions.

 I have a _lot_ of respect for the work that the Ubuntu audio
 team (and Lennart) is doing but the TB decision to accept
 PA into Ubuntu was a _BIG_ mistake. The appropriate action
 would have been to talk some sense into upstream. If you

How do you intend to talk some sense into upstream? Upstream,
presuming you mean PulseAudio, is _one_ project. Its success in any
distribution depends on perfect alignment of the layers beneath it:
linux, alsa-lib(, and to some extent, alsa-plugins). Every current
desktop Linux distribution ships a different combination of stack
components. Drilling down, even the linux configurations are
different. Even the compiler flags are different. A more persuasive
test is to take the precise Fedora 12 configuration of PulseAudio and
demonstrate that it works remarkably better in Ubuntu Karmic than
Ubuntu Karmic's.

In other words, you need to maintain the precise configuration across
the board before you can really say something is broken and thus needs
to be beaten into upstream.

 I was very glad that Canonical posted a job listing for
 Desktop Architect – Sound Experience recently, clearly
 someone is noticing this and pulling the right strings.

My understanding is that it is more a UI position.

 I do definitely think following upstream is the only sensible
 thing to do but not to follow them into an 18 month walk in the
 valley of death without water.

I don't think the situation is nearly as bleak as you paint it here,
but I caution you to consider the myriad hardware combinations that
wreak havoc on the default PA configuration.

In other words, it may suck for you, but it sucks a whole lot worse
for people in the trenches, because there are thousands of you with
your craptastic hardware, and the people in the trenches have to
balance thousands of configurations.

-Dan

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Re: Pulse audio

2009-10-08 Thread Daniel Chen
On Thu, Oct 8, 2009 at 9:20 AM, Remco remc...@gmail.com wrote:
 On Thu, Oct 8, 2009 at 14:40, Daniel Chen seven.st...@gmail.com wrote:
 The sad thing is that we could have shipped a two-line
 change to /etc/pulse/default.pa that would have alleviated nearly all
 of the (users') showstoppers. The change remains in my
 pulseaudio/hardy bzr branch.

 Why?

What?

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Re: Pulse audio

2009-10-08 Thread Daniel Chen
On Thu, Oct 8, 2009 at 4:59 PM, Remco remc...@gmail.com wrote:
 Why has it not been changed in Hardy? Did it break other stuff?

Firstly, it was too late to make the change. Secondly, it breaks with
upstream's (PA's) adamant policy that (ALSA) hw: be used by default,
not dmix: or dsnoop:.

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Re: Pulse audio

2009-10-07 Thread Daniel Chen
2009/10/7 Lukas Hejtmanek xhejt...@ics.muni.cz:
 why there is now hard-coded pulse audio in Ubuntu/Karmic?

Simply, this approach is upstream's, and it makes sense resource-wise
to follow upstream.

More bluntly, if you'd like to contribute a novel audio framework to
Linux, particularly Ubuntu, then here's as good a place to start as
any. It would be wise to be aware that many people have tried, failed,
and (wrongly) lambasted others.

 There seem to be many users not willing to use PA at all:
 http://idyllictux.wordpress.com/2009/04/21/ubuntu-904-jaunty-keeping-the-beast-pulseaudio-at-bay/

Many users not willing to use PA is not a compelling reason to deviate
from upstream. Many users not willing to use PA but willing to
contribute resources to the development of a better framework is only
slightly more compelling than the previous. Finally, many users
willing to advance PA is the most compelling reason to fix audio in
Linux.

Many people miss/ignore the fact that PA has done more to fix ALSA
than any other audio framework. Just because ALSA has appeared to be
sufficient in the past does not mean that it is, or even will be,
sufficient. And it certainly doesn't mean that ALSA is bug-free.

 What are benefits for ordinary users? No, ordinary user really does not want
 to send audio through the network. Ordinary user really does not want PA
 process to eat about 3-5% CPU time (mainly when running on batteries).

These are complaints that plague most new software. Given time, they are fixed.

-Dan

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Re: Pulse audio

2009-10-07 Thread Daniel Chen
On Wed, Oct 7, 2009 at 10:28 PM, Null Ack null...@gmail.com wrote:
 I dont think the ordinary user cares about PulseAudio or other
 internal components to their desktops. They just want audio to work.

Definitely agreed.

 1. Not delivering reliable audio experiences in production releases of Ubuntu

Certainly, the Ubuntu development team welcomes contributions. The
most visible and impacting contributions for Ubuntu audio come in the
form of source code changes.

Granted, fixing things upstream is generally smiled upon more so than
focusing on a particular distribution. In the case of stellar Ubuntu
audio bugs, perhaps contributing more than just testing is way
forward?

 2. A breakdown in the development process where my bug reports and
 others bug reports remain unresolved, and largely unanswered, except
 for bug spam messages like I have this too and I think this might
 be related to buy XYZ.

The breakdown can be due to prioritizing. Is your bug the most
impacting of all PulseAudio bugs? It's straightforward to say that my
bug is truly important to me, but it's often less admissible that the
bug only affects a given portion of users who are technically savvy
and know of workarounds.

I've presented numerous times that fixing the (Ubuntu) Linux audio
mess will take a while. This example is certainly not an
instant-gratification one.

In my mind, the ramp-up is also due to the fact that very few people
within the community truly understand the devastating cascade effect
of changes to any part of the audio stack.

 time with testing, but I find the audio bugs go on without resolution
 from previous cycle experiences. When I try to use it in applications,
 say warzone2100 I find the sound a garbled inaudible mess. Since bug
 reports dont seem to be effective, I've tried to get discussion going
 on if I could take the problems upstream or if they were Ubuntu
 specific problems but that was also left unanswered.

How can you assist in resolving the problems? Firstly, try to pinpoint
where in the audio stack the breakage is occurring. Secondly,
understand that your workaround is just a workaround and that it may
well break numerous other hardware. Thirdly, test your workaround on
as many hardware as you can.

 Other bugs in other internal components are actively resolved during
 the dev cycle so I think the issues are about a lack of capability in
 the audio space for Ubuntu.

Absolutely. One person volunteering and one person full-time makes for
much pain. We all welcome your contributions (including your testing).
Please take advantage of the mentoring offered (i.e., consider this an
explicit offer for mentoring).

-Dan

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Re: Huge instability and insanely large memory footprint in 9.04

2009-09-25 Thread Daniel Chen
On Fri, Sep 25, 2009 at 11:45 AM, Patrick Goetz pgo...@mail.utexas.edu wrote:
  7668 pgoetz    20   0  160m  17m  12m S    1  0.5  42:56.50 pulseaudio

Note that you can disable PA's mempool implementation. We also cache
/usr/share/sounds/ubuntu/stereo/* . Of course, from your top (not
really a good indicator of memory use anyhow; use exmap instead)
output, that's not really an issue.

There are _lots_ of ways to tweak PA for those people who love knobs.

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Re: Update on audio, call for testers, and ponies

2009-09-08 Thread Daniel Chen
On Wed, Aug 19, 2009 at 7:04 PM, LoonyPhoenixloonyphoe...@gmail.com wrote:
 all I liked. Then PCM disappeared and only master volume and per-application
 volumes remained, and I had to be careful not to go above 85% when setting
 master volume and I was all right. However, now I have to make sure all
 applications don't go over 85%, and it's a pain, so I'll wind up disabling
 flat volumes even though I like them better now. Also, I think the feature

I have not seen or heard resounding protest regarding the upstream
default to use volume=merge[0]. The handful of Karmic testers (less
than one half-dozen who have contacted me directly, though I encourage
everyone to publicise her/his discontent with the default on
ubuntu-devel-discuss) who are annoyed by it have modified the
necessary conffile[0].

However, I am concerned with avoiding serious use case regressions.
Many people don't test Karmic until RC, so if they get volume=merge
and are dismayed, it will be a bit late to get an idea whether they
are just the vocal minority.

PulseAudio itself is very, very near to 0.9.16 final, and just about
every major set of hourly git commits have been in the
ubuntu-audio-dev PPA.

The next PA upload to Karmic will break with upstream in that we will
set volume=ignore, which is the closest to existing behaviour for all
Ubuntu releases shipping PulseAudio. If this behaviour is undesirable,
speak now or forever hold your peace.

-Dan

[0] Quoting from
/usr/share/pulseaudio/alsa-mixer/paths/analog-output.conf.common:

; When a device shall change its volume, PA will got through the list
; of all elements with volume = merge and set the volume on the
; first element. If that element does not support dB volumes, this is
; where the story ends. If it does support dB volumes, PA divides the
; requested volume by the volume that was set on this element, and
; then go on to the next element with volume = merge and then set
; that there, and so on.  That way the first volume element in the
; path will be the one that does the 'biggest' part of the overall
; volume adjustment, with the remaining elements usually being set to
; some value next to 0dB. This logic makes sure we get the full range
; over all volume sliders and a very high granularity of volumes
; already in hardware.
...
; volume = ignore | merge | off | zero   # What to do with this
volume: ignore it, merge it into the device
;# volume slider, always set
it to the lowest value possible, or always
;# set it to 0 dB (for
whatever that means)

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Re: Jack inclusion in Main

2009-08-24 Thread Daniel Chen
[Adding ubuntu-devel@, apologies for resulting cross-posts]

Hi Eric,

On Mon, Aug 24, 2009 at 4:06 AM, Eric Hedekaraftertheb...@gmail.com wrote:
 In Bug #416778 ( https://bugs.launchpad.net/bugs/416778 ) Loïc Minier has
 requested further public discussion on the subject of Jack Audio Server
 http://jackaudio.org/ being included in the Main repositories.  I was told

Thanks for reviving the discussion!

Other than the jack-audio-connection-kit source itself, JACK in main
touches the following source packages: celt, libffado, libfreebob,
pulseaudio, and xine-lib. The first three are build-deps of JACK; the
last two are targets for enabling the JACK backend (i.e., improving
the experience of people who want PA-JACK functionality) and for
shrinking the Ubuntu source package delta to Debian's.

In terms of increased disc space use, this latter case for PA and
xine-lib really is a non-issue; those additional binary packages for
PA and xine-lib won't be shipped on Ubuntu, Kubuntu, or Xubuntu discs.
In other words, the size of main would grow from the addition of
source for jack-audio-connection-kit, celt, libffado, and libfreebob
and the addition of binaries for libjack{0,-dev}, libcelt{0,-dev},
libffado{0,-dev}, and libfreebob{0,-dev}, but the generated plugins
for PA and xine-lib would be in universe. For both PA and xine-lib,
simply not shipping the respective -jack plugins prevents JACK from
being used as a backend and therefore avoids disturbing the default
user experience. For Ubuntu, Kubuntu, and Xubuntu, there is zero
impact in a default install.

While there is valid concern about continuing the confusion of Linux
audio subsystems, both upstreams for PA and JACK voice their support
for largely separate use cases and are working actively to coordinate
control of audio devices via D-Bus. Furthermore, distro teams
(loosely, Ubuntu, Kubuntu, and Ubuntu Studio here, since they
represent the users of PA, ALSA directly, and JACK, respectively)
realistically focus on what's shipped by default; the community
(slight blurring in terms of Ubuntu Studio) tends to offer assistance
to people who, e.g., customise PA on Kubuntu or Ubuntu Studio.

Thanks,
Dan

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Re: Update on audio, call for testers, and ponies

2009-08-20 Thread Daniel Chen
On Thu, Aug 20, 2009 at 11:20 AM, George Farrisfarr...@cc.mala.bc.ca wrote:
 I'm sure you are aware of this but one never knows.  Any comment about
 whether this is fixed in Karmic?

Unfortunately, I have not tested this use case (I don't use that
application). Hopefully you will report whether your symptom in Jaunty
is alleviated.

-Dan

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Update on audio, call for testers, and ponies

2009-08-19 Thread Daniel Chen
Hi folks,

Today I updated the PulseAudio snapshot for Karmic in the
ubuntu-audio-dev PPA[0] to 0.9.16-test5[1]. This staged update should
be considered a poll for deciding whether flat volumes[2] should be
shipped enabled by default (in /etc/pulse/daemon.conf). Please respond
to the ubuntu-devel-discuss mailing list.

Please test 0.9.16-test5 rigourously, and file bugs as you encounter
them, thanks!

Henceforth, Luke and I (and possibly others) will be placing staging
versions of related audio software in this PPA.

-Dan

[0] https://launchpad.net/~ubuntu-audio-dev/+archive/ppa . Note that
this PPA contains a patched udev. See
https://lists.ubuntu.com/archives/ubuntu-devel/2009-August/028688.html
for rationale why this backported changeset was rejected. If you do
not use surround sound profiles, you can safely ignore this patched
udev.
[1] Really, it's 0.9.16-test5 just grabbed prior to the git tag being added.
[2] 
https://tango.0pointer.de/pipermail/pulseaudio-discuss/2009-August/004786.html

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Re: Call for Testers: Karmic kernel with sound controller powerdown fixes

2009-07-27 Thread Daniel Chen
Hi Matthew,

On Mon, Jul 27, 2009 at 12:02 PM, Matthew Garrettmj...@srcf.ucam.org wrote:
 I know that this is a very pedantic point, but when distributing kernel
 builds (or, indeed, any other GPLed code) it's helpful to include the
 source (or a pointer to the source) alongside it

Right, an obvious oversight on my part. The source for the builds is
kept at 
http://kernel.ubuntu.com/git?p=dtchen/ubuntu-karmic.git;a=shortlog;h=refs/heads/powerdown.

Thanks,
Dan

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Call for Testers: Karmic kernel with sound controller powerdown fixes

2009-07-25 Thread Daniel Chen
Hi all,

Some time ago, I asked[0] for bugs to be reported against Karmic's
sound drivers as we move toward improved power savings. Those of you
running Karmic on HDA hardware should notice improvements in a test
kernel[1]. If you have already filed a bug using the instructions in
[0], please follow up in your bug report whether - and to what degree
- the test kernel alleviates the popping anomalies.

Of particular interest are experiences of netbook owners, e.g., people
testing Kubuntu Netbook Edition.

Note that only an amd64 kernel is available presently. I am building
an i386 one real soon now. Please remember to verify the SHA512SUMs of
the downloaded packages.

Thanks,
Dan

[0] https://lists.ubuntu.com/archives/ubuntu-devel-discuss/2009-May/008239.html
[1] http://kernel.ubuntu.com/~dtchen/test-kernels/powerdown/

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Re: New GDM upload to Karmic

2009-07-03 Thread Daniel Chen
My experiences in Karmic match Max's.

On Jul 3, 2009 8:36 PM, Max Bowsher m...@f2s.com wrote:

Alexander Sack wrote:  On Fri, Jul 03, 2009 at 03:35:10PM -0700, Dean Loros
wrote:  Greetings.
Alexander,

I experienced what you describe above when upgrading from old gdm to new
gdm, *but* when I later upgraded from one package version of new gdm to
a slightly newer one, it killed my session outright.


Either way, even triggering the user switch screen in the middle of a
jaunty-karmic upgrade would be very bad user experience.

Max.


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Re: Replace PulseAudio with OSS v4?

2009-06-23 Thread Daniel Chen
On Sun, Jun 21, 2009 at 1:43 PM, Davyd McColldav...@gmail.com wrote:
 Oddly enough, pre-PA, I've never seen any kind of lockup on the SBLive. And

You're lucky. Some revisions of the EMU10k did awful, racy things.

 must point out that the latency issue, whilst more pressing for audio
 professionals, also steps into the user's realm when a game's audio doesn't
 align with the graphics on-screen. Someone playing a game, whilst not
 requiring sub 5ms latency, would probably appreciate sub-50ms latency.

Many of the sync issues are PulseAudio _and_ application bugs (e.g.,
the PulseAudio and xine-lib/MPlayer pause one from last dev cycle),
so it isn't that low latency is insignificant on the priority list for
PA but that reworking PA's mainloop and timer architectures have the
side effect of greatly improving both latency and resource use.

 able to contribute, if I can work the time in. So, point me at a good place
 to start, and perhaps I can be more help than just a lazy biscuit next to
 the hard-working tea.

Historically, Ubuntu has carried a shedload of backported (from PA
git) patches. I would like, and am working with Luke, to minimise
these patches for Karmic's PA. 0.9.16-test1 was tagged recently, and
it will be available for testing shortly.

Periodically, the question of how to contribute arises, so I'll address it here:

If you have C (and/or GTK) or C++ (and/or Qt) experience, then
consider working in upstream's Trac bug tracker. Some of the Launchpad
bugs affecting the pulseaudio source package are Ubuntu-specific; I'll
work on (and welcome assistance in) tagging them as (Ubuntu)
distro-specific. As Karmic's pulseaudio source sheds its
distro-specific bits, the benefits are apparent, since all Linux
distros face similar bugs.

If you don't feel comfortable contributing source code, then the Linux
audio realm is sorely lacking in test harness(es). There are no unit
tests in ALSA, PulseAudio, etc. There are no end-to-end tests defined
(e.g., for this new HP Mini, attempt to stream this Ogg Vorbis file
to an identical HP Mini over an 802.11g network). All distributions
will benefit by discussing and implementing them.

-Dan

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Re: Replace PulseAudio with OSS v4?

2009-06-20 Thread Daniel Chen
On Sat, Jun 20, 2009 at 1:47 AM, Danny
Piccirillodanny.picciri...@ubuntu.com wrote:
 PulseAudio is actually a very bad choice in the long term due to horrible
 latency and lower sound quality, and that we should work to use OSS v4. It's
 a long read but seems to be worth it. What do others think about this?

Adding more layers inevitably results in increased latency if not done
correctly. PulseAudio's glitch-free mode addresses the interrupt-based
problem in a different fashion. Unfortunately, the state of Linux
drivers for common audio hardware in laptops is abysmal.

Yes, it's trivial to experience high latency using PulseAudio, but
that is not necessarily PulseAudio's fault. If you've seen any of my
presentations[0] on audio, you'll walk away seeing that Linux audio is
a complicated stack to troubleshoot and to improve incrementally.
Ubuntu has shipped with suboptimal configurations in the past, but
Jaunty was a fairly significant step forward (although many people
will dispute it because sound is broken for me). Karmic, by all
indications, will be better by virtue of more people spending cycles
fixing bugs in ALSA and PulseAudio. For instance, significant
buffering issues and audio anomalies have been identified and are
nearly resolved in the common case in Karmic, Rawhide, and elsewhere.
Closed-source software continues to be problematic.

Lower sound quality is a red herring. ALSA's default resampler has
known and quite audible limitations. The available resamplers in
PulseAudio demolish the lower sound quality FUD. Jaunty shipped a
configuration using a craptastic one in an attempt to balance CPU
usage with perceptive quality. Lessons learned: Karmic will ship with
a much better (but more CPU-intensive) resampler.

Now let's consider why replacing ALSA with OSSv4 in Ubuntu Karmic
would be a bad exercise:

1) No upstream mainline Linux support - Canonical and the Ubuntu
community would have to devote resources to supporting OSSv4 as
out-of-tree software, which is nontrivial for an area as significant
as the audio stack. The kernel team's lessons learned in supporting
such out-of-tree patches has indicated that no one would rather
continue down that road. To date, no one has stepped forward to
address the significant architectural concerns with merging OSSv4 into
mainline Linux.

2) Lack of feature parity - while some HDA codecs are marginally
better supported in OSSv4, that list continues to shrink. Creative
X-Fi support, USB, USB MIDI support, to name a few, are consistently
better supported in ALSA. Due to sheer momentum, that maintenance pace
does not hold for OSSv4.

That said, no one is opposed to seeing OSSv4 improve to the point
where it can be merged into mainline Linux. From the audio team's
perspective, it simply makes support resources sense for Ubuntu and
its supported remixes to carry support for ALSA and PulseAudio by
default.

I'd like to add that if someone wants to see OSSv4 support in Ubuntu,
that someone just needs to step up and work in the Ubuntu audio team.
I volunteer my spare cycles working on Ubuntu audio, so I see no
reason why a motivated and resourceful person cannot do similarly.

-Dan

[0] http://kernel.ubuntu.com/~dtchen/UDS-Barcelona/

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Re: Replace PulseAudio with OSS v4?

2009-06-20 Thread Daniel Chen
On Sat, Jun 20, 2009 at 9:53 AM, Davyd McColldav...@gmail.com wrote:
 I've had an SB Live for ages. One of the most redeeming features of this
 card is hardware mixing. Meaning that I didn't care about OSS lockups or
 ALSA's dmix.

Too bad that hardware multiopen support comes at a price: all streams
are forcibly resampled, reducing audio fidelity. But I digress...

 I tried using PA's mixing and multiple output to use USB headphones and the
 onboard Realtek HDA audio. Worked for a while but often left PA locked up. I
 would have to kill and restart. My nett conclusion is that PA doesn't do
 well with multiple soundcards, despite the advertisements.

That symptom is a combination of outdated ALSA (-kernel, -lib,
-plugins) and PulseAudio. I've outlined[0] release schedule
misalignments that exacerbate this symptom.

 So now I use the onboard sound exclusively. PA behaves (mostly) for me, but
 the sound is a little latent -- and I'm not a person who creates music or
 anything like that. I can deal with the minor latency because it doesn't
 really affect me. Someone who mixes digital music on the other hand (and I
 have a friend who does) can't use PA.

PA is not the use case for people mixing digital music. The Linux
audio community is finally coming to a consensus that desktop audio is
the realm of PulseAudio, and professional audio is the realm of Jack
Audio Connection Kit. Interaction between the two is being improved.

 I would welcome (and I'm sure other
 users would agree) any subsystem which:

 1) Worked (all the time, without random lockup)

Difficult to accomplish when the hardware is faulty, which is far more
common on older Creative cards than one might think

 2) Wasn't latent

Different use cases here, see PulseAudio vice JACK

 3) Wasn't a mission to set up
 4) Just handled mixing
 5) Could handle multiple soundcards easily

Being improved for both the desktop and for professional audio

 OSSv4, from the
 posted article, looks like it handles the average user's requirements quite
 well. I guess it's up to whether it's worth patching into the Linux kernel
 for *buntu distros or if the kernel devs want to include it.

Well, if you consider the average user not to care about her/his
integrated laptop audio or USB headset, sure...

 dmix to work -- oddly enough, some distros actually have tools to make it
 work for you. I haven't seen something like that on *buntu

Pre-Karmic shipped asoundconf(1). We've stripped it from alsa-utils,
because it was becoming increasingly bearish to maintain, and because
the magic alsa-lib runes necessary are really PulseAudio's realm.

 It would indeed be a great step forward to have sound work under Linux in
 the same manner that windows users are accustomed to: it just does

A noble objective. Now who's with me?

-Dan

[0] http://kernel.ubuntu.com/~dtchen/UDS-Barcelona/

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Re: Stable 64-bit flash

2009-06-17 Thread Daniel Chen
On Wed, Jun 17, 2009 at 12:29 PM, Martin Owensdocto...@gmail.com wrote:
 Although getting the script updated to download the correct version
 depending on your arch would probably be a better bet, I bet it's also
 set to be i386 only too. A more clever script would prevent confusion I
 think.

The more clever script approach was tried - and reverted - back in
early Jaunty. The current flashplugin-installer package downloads from
archive.canonical.com, which cannot distribute non-final Flash
releases.

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Re: Stable 64-bit flash

2009-06-17 Thread Daniel Chen
On Wed, Jun 17, 2009 at 1:32 PM, Danny
Piccirillodanny.picciri...@ubuntu.com wrote:
 No exception can be made there? How have exceptions been made before? Is
 there some way to work around that?

Exceptions to the redistribution terms must be granted by Adobe.

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Re: Stable 64-bit flash

2009-06-17 Thread Daniel Chen
On Wed, Jun 17, 2009 at 1:45 PM, Danny
Piccirillodanny.picciri...@ubuntu.com wrote:
 Ah, how unfortunate. Would it be impossible to get Adobe to allow this in
 time? If we could take the file straight from their website, would that be
 allowed?

Regarding whether Adobe will adjust its stance: I don't know.

Regarding whether downloading the plugin similar to the old
flashplugin-nonfree source approach is a good idea: absolutely not.
Doing so raised a crop of errors that were (mostly) resolved by
downloading directly from archive.canonical.com.

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Re: Stable 64-bit flash

2009-06-17 Thread Daniel Chen
What two libraries? Also, note that flashplugin-installer depends on
ia32-libs, which is unnecessary for the native 64-bit plugin.

On Jun 17, 2009 2:41 PM, Bruce Miller subscr...@brmiller.ca wrote:

I am puzzled by this thread; but then again, I am a user who lurks on this
list, not a developer. Presumably, I do not understand.

I run Kubuntu Karmic Alpha2, fully updated.

Among the installed packages, I have the following:
br...@xenophon:~$ apt-cache show flashplugin-installer
Package: flashplugin-installer
Priority: optional
Section: multiverse/web
Installed-Size: 176
Maintainer: Ubuntu MOTU Developers ubuntu-m...@lists.ubuntu.com
Original-Maintainer: Bart Martens ba...@knars.be
Architecture: amd64
Source: flashplugin-nonfree
Version: 10.0.22.87ubuntu2
Replaces: flashplugin ( 6), flashplugin-nonfree
Provides: flashplugin-nonfree
Depends: nspluginwrapper (= 0.9.91.4-2ubuntu1), ia32-libs (= 2.2ubuntu18),
debconf | debconf-2.0, wget, fontconfig
Recommends: libasound2-plugins (= 1.0.16)
Suggests: firefox, xulrunner-1.9, firefox-3.0, konqueror-nsplugins,
x-ttcidfont-conf, msttcorefonts, ttf-bitstream-vera | ttf-dejavu,
ttf-xfree86-nonfree, xfs (= 1:1.0.1-5)
Conflicts: flashplayer-mozilla, flashplugin ( 6), flashplugin-nonfree (
10.0.22.87ubuntu2~), libflashsupport, xfs ( 1:1.0.1-5)
Filename:
pool/multiverse/f/flashplugin-nonfree/flashplugin-installer_10.0.22.87ubuntu2_amd64.deb
Size: 19124
MD5sum: 1271e320a25fab0fd29833df2d84f574
SHA1: b0389cb7ba3aaecca59fca1d29c3dcb536cc7eae
SHA256: 75b63fd3450c5367fc50811e4e5c2418d42f0d987aa2b6fe31e412de4e31
Description: Adobe Flash Player plugin installer
 This package will download the Flash Player from the net.  It is a
 Netscape/Mozilla type plugin.  Any browser based on Netscape or Mozilla can
 use the Flash plugin.  This package currently supports the following
browsers:
 Mozilla, Mozilla-Firefox, Firefox, Iceweasel, and Iceape.  Also Galeon and
 Epiphany can use the Flash plugin.  Konqueror can also use the Flash plugin
if
 konqueror-nsplugins is installed.
 .
 WARNING: Installing this Ubuntu package causes the Adobe flash plugin to be
 downloaded from www.adobe.com.  The distribution license of the Adobe flash
 plugin is available at www.adobe.com.  Installing this Ubuntu package
implies
 that you have accepted the terms of that license.
Homepage: http://wiki.ubuntu.com/FlashPlayer9
Npp-Applications: ec8030f7-c20a-464f-9b0e-13a3a9e97384,
92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a, aa5ca914-c309-495d-91cf-3141bbb04115
Npp-Description: Adobe Flash SWF Player (http://www.adobe.com)
Npp-File: libflashplayer.so
Npp-Mimetype: application/x-shockwave-flash
Npp-Name: Adobe Flash Player (installer)
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Origin: Ubuntu

The following appears to be the latest so-called Alpha version available
directly from the Adobe web site:
http://download.macromedia.com/pub/labs/flashplayer10/libflashplayer-10.0.22.87.linux-x86_64.so.tar.gz

A file compare shows that the two libraries are identical. Does this not
mean that the Ubuntu repositories are already providing the most recent
Adobe 64-bit flash?

--
Bruce Miller, Ottawa, Ontario, Canada
br...@brmiller.ca; (613) 745-1151

In the beginning... was the command line.

--
*From:* Danny Piccirillo danny.picciri...@ubuntu.com
*To:* ubuntu-devel-discuss@lists.ubuntu.com
*Sent:* Wednesday, June 17, 2009 12:19:17 PM
*Subject:* Stable 64-bit flash

IIRC, the Flash 64 bit Alpha almost made it into Intrepid, but was not
because it is an alpha. It w...

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Re: Recent changes to ALSA for power saving

2009-05-27 Thread Daniel Chen
On Tue, May 26, 2009 at 11:18 PM, I wrote:
 We expect there will be regressions in the form of audible pops when
 the AMPs power down (and/or up). If you experience this symptom in

On Wed, May 27, 2009 at 8:03 AM, Alexandre Strube su...@surak.eti.br wrote:
 Continually lowering the volume for, say, one second prior to disabling
 wouldn't mitigate this issue?

That is a potential workaround, but the correct fix would be in
linux's sound/pci/hda/*.c.

Dan

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Recent changes to ALSA for power saving

2009-05-26 Thread Daniel Chen
Hi all,

Luke and I have just pushed a one-line change to 9.10's
/etc/modprobe.d/alsa-base.conf that enables HDA controllers to power
down their amps after ten idle seconds. This change anticipates the
larger power-savings objectives for 9.10.

We expect there will be regressions in the form of audible pops when
the AMPs power down (and/or up). If you experience this symptom in
9.10, please file a bug using ubuntu-bug alsa-base. Be sure to
change the summary of the bug afterward to [9.10 regression] HDA
power_save=10.

Thanks,
Dan

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Re: What's wrong with Ubuntu's policy?

2009-05-22 Thread Daniel Chen
On Thu, May 21, 2009 at 7:01 AM, Markus Hitter m...@jump-ing.de wrote:
 In my opinion, this is disappointing. Very disappointing. What is
 wrong with Ubuntu's release/fix/backport strategy for such a thing to
 happen?

Downstreams should feel free to adopt whatever policies suit them.
(Think Ubuntu's downstream relation to Debian, and Debian's downstream
relation to all upstreams.)

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Re: Current situation of amarok, and of latex tools

2009-05-13 Thread Daniel Chen
On Wed, May 13, 2009 at 2:07 PM, Vincenzo Ciancia cian...@di.unipi.it wrote:
 I hope this will not sound like a complaint.

It does.

 The problem
 is there, and it's grave.

Grave for whom? For you? For what common use cases? These are things
that are factors to consider when affecting an entire release.

 In my opinion, the switch to recent versions of some programs has been
 done without the needed testing, (or, like in the case of the intel
 driver, without taking seriously the response from testers) and results
 in a completely broken or very badly usable system for many. In the
 latest release of ubuntu, I mean.

There has been no lack of calls for testing. Some of these calls have
resulted in timely and effective bug reports. Others, not so much. I
doubt testers' responses have been blithely ignored. I know I
certainly didn't regarding the audio stack (woe tho' it is). Some
regressions are more serious than others, and like most bugs, there
are sometimes quick workarounds. (Sometimes the entire audio stack has
to be ripped apart, but that's irrelevant.)

One pivot is how many users will regress if we do X instead of Y? It
is not useful to base a decision solely on popular outcry. There are
far too many hardware combinations. People whose Ubuntu installs seem
to work rarely pipe up and complain. How do you account for them?

 THIS IS BAD FOR UBUNTU!   THIS IS BAD FOR UBUNTU!   THIS IS BAD FOR
 UBUNTU!  THIS IS BAD FOR UBUNTU! THIS IS BAD FOR UBUNTU! THIS IS BAD

It's a very thin line between complaining and fixing the bugs, but
motivation may distort one's vision.

 I messed up my ph.d.
 thesis with it today, then in complete frustration reinstalled kile
 2.0.1 from intrepid, which works like a charm.

I understand your frustration. I, too, have a day job. Are you
spending your free time fixing kile (and/or kdvi)?

 What is it doing there in a stable release? This program has not been
 tested. It is not stable. People does not like it yet.

Are you seriously saying that Amarok has not been tested?

Also, I'm unsure what part of liking (which is subjective,
regardless) an application actually goes into bundling it into a
release. As far as I know, Amarok has existed in some form for most,
if not all, Kubuntu releases. To remove it would constitute a
regression. To bundle an older version would result in complaints
regarding an outdated version. etc.

 fixed, but why shipping a broken program in a stable distribution?

 Now this can't be my fault. Nor yours: you wanted to
 get rid of unsupported applications and that's good. But it was way too
 quick as a move. Next time a bit more testing will help.

Or...you could step and take responsibility for some part of the
distribution/release process. The line between complaining and fixing
bugs really becomes thinner, then.

 The new intel driver was
 and is broken. Upgrading has been a grave mistake and users are seeing
 an ubuntu that deadlocks.

Again, for which users on what hardware? Do those users constitute the
majority of people using Ubuntu?

 It seems to me that too much trust was put in the fact that it'd
 have been fixed.

How much of this complaining would be moot if you had contributed upstream?

 The ubuntu procedure for testing, in jaunty,
 seems not to have worked in some points. Next release can be better also
 from this point of view. Perhaps by just listening a bit more to
 regressions (it seems my favourite topic?).

What constitutes a regression for you may not be a regression on
someone else's install. Are you more important than that someone else?
Whose install should break? Neither is an ideal but impractical
answer.

Dan

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Re: Call for Jaunty testers (PulseAudio stability-related)

2009-03-20 Thread Daniel Chen
On Fri, Mar 20, 2009 at 5:28 AM, Dotan Cohen dotanco...@gmail.com wrote:
 I am an end-user with no development experience. Would my input in
 testing still be valuable? If so, then how can I start? Simply
 pointing me to the relevant documentation for enabling the kernel you
 mentioned would be a start.

Start by installing the kernel for your given architecture. You can
click the link for one of the debs, and Ubuntu will handle the rest
for you, although I recommend that you save the deb instead of
installing it immediately via gdebi.

I recommend that you verify that the SHA256SUM is correct after
downloading the deb. I have placed a GPG-signed SHA256SUM.asc file in
that directory. Open a Terminal, and type:

sha256sum filename

where filename is the path to the linux-image...deb that you
downloaded. Make sure the sums match.

 Once I get it up, what should I test? Should I just open different
 audio applications (Amarok, Skype, VLC) and try to play some files?

Yes, please attempt to reproduce bug 330814 and/or bug 344057 using
whatever normal usage patterns.

Please remember that I am only interested in PulseAudio *stability*
changes, not whether PulseAudio is inaudible, etc.

-Dan

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