Re: [DNG] Firefox, sudo and apulse (was Re: Steam, Mumble, Valheim, Alsa and shared audio)
On September 4, 2021 4:40:34 AM CDT, g4sra via Dng wrote:
:: On Tuesday, August 31st, 2021 at 7:41 PM, hal wrote
:: > On 8/31/21 11:02, g4sra via Dng wrote:
:: >
:: > > > ctl.!default {
:: > > > type hw
:: > > > card 0
:: > > > }
:: > > >
::
:: > > > Check to make sure you do not have a ~/.asoundrc overriding
/etc/asound.conf
:: > Good thought, and have checked this. Especially relevant with the
multi-user situation. I will check on the other enlightening ALSA suggestions
you have made.
:: >
:: > > get user_one's cookie:
:: > > user_one# xauth -n list localhost/unix:0
:: > > localhost/unix:0 MIT-MAGIC-COOKIE-1 83c12a394ac0c5afe1fee0a973b9e49g
:: > > then give the cookie to user_two:
:: > > user_two# xauth add localhost/unix:0 MIT-MAGIC-COOKIE-1
83c12a394ac0c5afe1fee0a973b9e49g
:: > > now 'user_two' can access the GUI (you may need to set DISPLAY):
:: > > user_two# DISPLAY=:0 /usr/bin/apulse /home/apps/firefox/firefox
-ProfileManager
:: > Thank you for this! I have always used 'xhost +' and drop TCP 6000 (eth0)
on the host firewall (on my "single-user" workstation anyway). I've tried to
find more secure ways to share the X cookie but for one reason or another, they
never worked out. I will try this!
::
:: Hi Hal,
::
:: I replied off-list, it just occurred to me it may have gone into your spam
box.
g4sra,
yes I did see your reply thank you for that. I am not good at managing my time
and have been swamped the last few days. you noticed some very good things then
maybe have been misconfigured on my system for quite some time. I will look
into these and post back on the list. thank you again!
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Re: [DNG] Firefox, sudo and apulse (was Re: Steam, Mumble, Valheim, Alsa and shared audio)
On Tuesday, August 31st, 2021 at 7:41 PM, hal wrote
> On 8/31/21 11:02, g4sra via Dng wrote:
>
> > > ctl.!default {
> > > type hw
> > > card 0
> > > }
> > >
> > > Check to make sure you do not have a ~/.asoundrc overriding
> > > /etc/asound.conf
> Good thought, and have checked this. Especially relevant with the multi-user
> situation. I will check on the other enlightening ALSA suggestions you have
> made.
>
> > get user_one's cookie:
> > user_one# xauth -n list localhost/unix:0
> > localhost/unix:0 MIT-MAGIC-COOKIE-1 83c12a394ac0c5afe1fee0a973b9e49g
> > then give the cookie to user_two:
> > user_two# xauth add localhost/unix:0 MIT-MAGIC-COOKIE-1
> > 83c12a394ac0c5afe1fee0a973b9e49g
> > now 'user_two' can access the GUI (you may need to set DISPLAY):
> > user_two# DISPLAY=:0 /usr/bin/apulse /home/apps/firefox/firefox
> > -ProfileManager
> Thank you for this! I have always used 'xhost +' and drop TCP 6000 (eth0) on
> the host firewall (on my "single-user" workstation anyway). I've tried to
> find more secure ways to share the X cookie but for one reason or another,
> they never worked out. I will try this!
Hi Hal,
I replied off-list, it just occurred to me it may have gone into your spam box.
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Re: [DNG] Firefox, sudo and apulse (was Re: Steam, Mumble, Valheim, Alsa and shared audio)
On 8/31/21 11:02, g4sra via Dng wrote: In case you are unaware To simplify the GUI side, use 'xauth' get user_one's cookie: user_one# xauth -n list localhost/unix:0 localhost/unix:0 MIT-MAGIC-COOKIE-1 83c12a394ac0c5afe1fee0a973b9e49g then give the cookie to user_two: user_two# xauth add localhost/unix:0 MIT-MAGIC-COOKIE-1 83c12a394ac0c5afe1fee0a973b9e49g now 'user_two' can access the GUI (you may need to set DISPLAY): user_two# DISPLAY=:0 /usr/bin/apulse /home/apps/firefox/firefox -ProfileManager I do this so frequently for 'root' that I have a two-line bash script I called 'xsudo.sh' #!/usr/bin/env bash sudo bash -c "xauth add $(xauth -n list localhost/unix:0) && exec $@ &" Ok I tried this today but I think I have something wrong. Are you running all these as root (I see # in your prompt)? Here is what I tried: user1 $xauth -n list localhost/unix:0 user1 $xauth -n list beowulf/unix:0 MIT-MAGIC-COOKIE-1 4e9c9fca69b03a0b270ce53237df2fca user1 $sudo -u webuser /bin/bash --login No protocol specified Cannot open display ":0.0" No protocol specified Cannot open display ":0.0" webuser $xauth add beowulf/unix:0 MIT-MAGIC-COOKIE-1 4e9c9fca69b03a0b270ce53237df2fca xauth: timeout in locking authority file /home/user1/.Xauthority webuser $ ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] Firefox, sudo and apulse (was Re: Steam, Mumble, Valheim, Alsa and shared audio)
On Tuesday, August 31st, 2021 at 7:41 PM, hal wrote:
> On 8/31/21 11:02, g4sra via Dng wrote
>
>
> > > ctl.!default {
> > >
> > > type hw
> > >
> > > card 0
> > >
> > > }
> > >
> > > Check to make sure you do not have a ~/.asoundrc overriding
> > > /etc/asound.conf
>
> Good thought, and have checked this. Especially relevant with the multi-user
> situation. I will check on the other enlightening ALSA suggestions you have
> made.
>
>
>
> > get user_one's cookie:
> > user_one# xauth -n list localhost/unix:0
> > localhost/unix:0 MIT-MAGIC-COOKIE-1 83c12a394ac0c5afe1fee0a973b9e49g
> >
> > then give the cookie to user_two:
> > user_two# xauth add localhost/unix:0 MIT-MAGIC-COOKIE-1
> > 83c12a394ac0c5afe1fee0a973b9e49g
> >
> > now 'user_two' can access the GUI (you may need to set DISPLAY):
> > user_two# DISPLAY=:0 /usr/bin/apulse /home/apps/firefox/firefox
> > -ProfileManager
>
> Thank you for this! I have always used 'xhost +' and drop TCP 6000 (eth0) on
> the host firewall (on my "single-user" workstation anyway). I've tried to
> find more secure ways to share the X cookie but for one reason or another,
> they never worked out. I will try this!
To work remotely you use the FQDN appended with the DISPLAY number (as opposed
to localhost/unix:0) to get the TCP connection cookie.
user_one# xauth -n list host.example.com:0
10.0.0.1 MIT-MAGIC-COOKIE-1 92b21b394ac0c5afe1fee0a973b9e49g
This will only work if Xorg is listening for non-local TCP connections though,
which is NOT the default.
I almost always use XForward'ing over ssh.
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Re: [DNG] Firefox, sudo and apulse (was Re: Steam, Mumble, Valheim, Alsa and shared audio)
On 8/31/21 11:02, g4sra via Dng wrote:
ctl.!default {
type hw
card 0
}
Check to make sure you do not have a ~/.asoundrc overriding /etc/asound.conf
Good thought, and have checked this. Especially relevant with the multi-user
situation. I will check on the other enlightening ALSA suggestions you have
made.
get user_one's cookie:
user_one# xauth -n list localhost/unix:0
localhost/unix:0 MIT-MAGIC-COOKIE-1 83c12a394ac0c5afe1fee0a973b9e49g
then give the cookie to user_two:
user_two# xauth add localhost/unix:0 MIT-MAGIC-COOKIE-1
83c12a394ac0c5afe1fee0a973b9e49g
now 'user_two' can access the GUI (you may need to set DISPLAY):
user_two# DISPLAY=:0 /usr/bin/apulse /home/apps/firefox/firefox -ProfileManager
Thank you for this! I have always used 'xhost +' and drop TCP 6000 (eth0) on the host
firewall (on my "single-user" workstation anyway). I've tried to find more
secure ways to share the X cookie but for one reason or another, they never worked out. I
will try this!
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Re: [DNG] Firefox, sudo and apulse (was Re: Steam, Mumble, Valheim, Alsa and shared audio)
On Tuesday, August 31st, 2021 at 4:21 PM, hal wrote:
> On 8/28/21 13:24, g4sra via Dng wrote:
> > Install 'apulse' which are a sort of pulseaudio compatability libraries.
> apulse hasn't been working for me with Firefox for at least a year now. I
> don't know if I messed it up or if it was some software change, but it just
> stopped working once. Firefox doesn't seem to have FOSS in the focus so much
> anymore so always thought maybe they did something (again).
> I just tried ff now running as my LXDE logged in user[1] and using sudo[2].
> Both generated some apulse complaints I have to look into. my "default" dev
> is the onboard sound chip which might be in use with another application I
> have open.
> Maybe I need to make "default" one of my dmix devices and not the "raw
> device", or I need to specify a playback rate in /etc/asound.conf like I've
> seen in some ALSA examples? hmm..
You are correct in that you definitely do not want a "raw device" as your
default.
> ::: apulse errors :::
> [apulse] [error] do_connect_pcm: can't get initial hw parameters for playback
> device "default". Error code 1 (Operation not permitted)
Permissions error, likely 'User' related.
> [apulse] [error] do_connect_pcm: failed to open ALSA device. Apulse does no
> resampling or format conversion, leaving that task to ALSA plugins. Ensure
> that selected device is capable of playing a particular sample format at a
> particular rate. They have to be supported by either hardware directly, or by
> "plug" and "dmix" ALSA plugins which will perform required conversions on CPU.
The selected device is not capable of handling the data format, so you need to
change your "default" device configuration.
> ::: cards/devices :::
> $ cat /proc/asound/cards
> 0 [PCH ]: HDA-Intel - HDA Intel PCH
> HDA Intel PCH at 0xfbff8000 irq 37
>
> ::: snipped /etc/asound.conf :::
> $ cat /etc/asound.conf
>
> ...
> pcm.!default {
> type plug
> slave.pcm "duplex"
> }
>
> ctl.!default {
> type hw
> card 0
> }
Check to make sure you do not have a ~/.asoundrc overriding /etc/asound.conf
> > This may (and I do mean 'may') be your Desktop not releasing the audio
> > devices, google that for your specific desktop to find out how to make it
> > release them when you launch steam.
> [1] $ /usr/bin/apulse /home/apps/firefox/firefox -ProfileManager
> [2] $ sudo -u webuser /usr/bin/apulse /home/apps/firefox/firefox
> -ProfileManager
Switching 'User's in a GUI without re-logging is not always straightforward,
session management can get in the way and conflict with the GUI.
In case you are unaware
To simplify the GUI side, use 'xauth'
get user_one's cookie:
user_one# xauth -n list localhost/unix:0
localhost/unix:0 MIT-MAGIC-COOKIE-1 83c12a394ac0c5afe1fee0a973b9e49g
then give the cookie to user_two:
user_two# xauth add localhost/unix:0 MIT-MAGIC-COOKIE-1
83c12a394ac0c5afe1fee0a973b9e49g
now 'user_two' can access the GUI (you may need to set DISPLAY):
user_two# DISPLAY=:0 /usr/bin/apulse /home/apps/firefox/firefox -ProfileManager
I do this so frequently for 'root' that I have a two-line bash script I called
'xsudo.sh'
#!/usr/bin/env bash
sudo bash -c "xauth add $(xauth -n list localhost/unix:0) && exec $@ &"
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Re: [DNG] Firefox, sudo and apulse (was Re: Steam, Mumble, Valheim, Alsa and shared audio)
On 8/31/21 10:46, Dr. Nikolaus Klepp wrote: apulse works here like a charm. But my /etc/asound.conf is different (I use soundcard 2 aka index 1 as default): defaults.pcm.card 1 defaults.ctl.card 1 defaults.timer.card 1 Ahh, ok. So something with my config. Thank you for the input! ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] Firefox, sudo and apulse (was Re: Steam, Mumble, Valheim, Alsa and shared audio)
Anno domini 2021 Tue, 31 Aug 10:21:31 -0500
hal scripsit:
> On 8/28/21 13:24, g4sra via Dng wrote:
> > Install 'apulse' which are a sort of pulseaudio compatability libraries.
>
> apulse hasn't been working for me with Firefox for at least a year now. I
> don't know if I messed it up or if it was some software change, but it just
> stopped working once. Firefox doesn't seem to have FOSS in the focus so much
> anymore so always thought maybe they did something (again).
>
> I just tried ff now running as my LXDE logged in user[1] and using sudo[2].
> Both generated some apulse complaints I have to look into. my "default" dev
> is the onboard sound chip which might be in use with another application I
> have open.
>
> Maybe I need to make "default" one of my dmix devices and not the "raw
> device", or I need to specify a playback rate in /etc/asound.conf like I've
> seen in some ALSA examples? hmm..
>
> ::: apulse errors :::
> [apulse] [error] do_connect_pcm: can't get initial hw parameters for playback
> device "default". Error code 1 (Operation not permitted)
>
> [apulse] [error] do_connect_pcm: failed to open ALSA device. Apulse does no
> resampling or format conversion, leaving that task to ALSA plugins. Ensure
> that selected device is capable of playing a particular sample format at a
> particular rate. They have to be supported by either hardware directly, or by
> "plug" and "dmix" ALSA plugins which will perform required conversions on CPU.
>
>
> ::: cards/devices :::
> $ cat /proc/asound/cards
> 0 [PCH]: HDA-Intel - HDA Intel PCH
>HDA Intel PCH at 0xfbff8000 irq 37
>
>
> ::: snipped /etc/asound.conf :::
> $ cat /etc/asound.conf
> ...
> pcm.!default {
> type plug
> slave.pcm "duplex"
> }
> ctl.!default {
> type hw
> card 0
> }
apulse works here like a charm. But my /etc/asound.conf is different (I use
soundcard 2 aka index 1 as default):
defaults.pcm.card 1
defaults.ctl.card 1
defaults.timer.card 1
Nik
>
>
>
> > This may (and I do mean 'may') be your Desktop not releasing the audio
> > devices, google that for your specific desktop to find out how to make it
> > release them when you launch steam.
> >
>
>
> [1] $ /usr/bin/apulse /home/apps/firefox/firefox -ProfileManager
> [2] $ sudo -u webuser /usr/bin/apulse /home/apps/firefox/firefox
> -ProfileManager
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[DNG] Firefox, sudo and apulse (was Re: Steam, Mumble, Valheim, Alsa and shared audio)
On 8/28/21 13:24, g4sra via Dng wrote:
Install 'apulse' which are a sort of pulseaudio compatability libraries.
apulse hasn't been working for me with Firefox for at least a year now. I don't
know if I messed it up or if it was some software change, but it just stopped
working once. Firefox doesn't seem to have FOSS in the focus so much anymore so
always thought maybe they did something (again).
I just tried ff now running as my LXDE logged in user[1] and using sudo[2]. Both
generated some apulse complaints I have to look into. my "default" dev is the
onboard sound chip which might be in use with another application I have open.
Maybe I need to make "default" one of my dmix devices and not the "raw device",
or I need to specify a playback rate in /etc/asound.conf like I've seen in some ALSA examples? hmm..
::: apulse errors :::
[apulse] [error] do_connect_pcm: can't get initial hw parameters for playback device
"default". Error code 1 (Operation not permitted)
[apulse] [error] do_connect_pcm: failed to open ALSA device. Apulse does no resampling or format
conversion, leaving that task to ALSA plugins. Ensure that selected device is capable of playing a
particular sample format at a particular rate. They have to be supported by either hardware
directly, or by "plug" and "dmix" ALSA plugins which will perform required
conversions on CPU.
::: cards/devices :::
$ cat /proc/asound/cards
0 [PCH]: HDA-Intel - HDA Intel PCH
HDA Intel PCH at 0xfbff8000 irq 37
::: snipped /etc/asound.conf :::
$ cat /etc/asound.conf
...
pcm.!default {
type plug
slave.pcm "duplex"
}
ctl.!default {
type hw
card 0
}
This may (and I do mean 'may') be your Desktop not releasing the audio devices,
google that for your specific desktop to find out how to make it release them
when you launch steam.
[1] $ /usr/bin/apulse /home/apps/firefox/firefox -ProfileManager
[2] $ sudo -u webuser /usr/bin/apulse /home/apps/firefox/firefox -ProfileManager
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