Hello,
using zita-njbridge between two x86_64 systems works great. However,
when I try to connect an arm-based system (Banana Pi M1) with a 64 bit
system things get less stable (dropouts even with large buffers, error
messages, segmentation fault on the 64bit side). I tried the Ubuntu
18.04 provided version (0.1.1) as well as a freshly compiled version
(0.4.4). Did anyone successfully try zita-njbridge on arm-based systems?
Giso
(when the segfault happens it is always in netrx.cc, line 264 in the
function write_zeros)
Hi list,
I am running a telephony daemon on a laptop that gives no audio
interface configuration options and I wish to use it with Jack. I'm
confused as to whether or not it is using ALSA. If Jack is already
running (with pulseaudio-module-jack uninstalled) and configured to use
an external USB sound card, starting the daemon results in its audio i/o
being connected with the laptop's internal mic and speaker. If Jack is
not running, the daemon connects with card 1 listed by "aplay -l", which
happens to be the USB card. However, if Jack is running with
pulseaudio-module-jack installed and all other non-jack audio apps are
routed via the sink to the USB card, the telephony daemon again connects
and runs correctly with laptop's internal hardware.
I don't think ALSA-Jack loopback scripts will work as I think
pulseaudio-module-jack does this job now. Is there a solution with
kernel modules? Can someone please put me in the right direction?
Thanks!
Iain
Thanks to everyone for the tips and suggestions. I thought I'd write a
quick update to say it's all sorted now. tl;dr: Ryzen 3 with Vega works
just fine on 5.4.x series kernels.
I started shopping around for the cards Paul mentioned but couldn't find
versions with that chipset but without fans for the Radeon and the nVidia
route also turned up blanks.
Luckily, one of my machines is a work from home machine and I managed to
bag an nVidia Quadro K1200 from the stores at work. Four DP outputs and
it seems much more performant. That's the one with more monitors, but not
the low latency kernel.
The studio machine has a 4K display and couldn't use the nVidia drivers
because of the RT kernel patches. Turns out though that the solution was
staring me in the face: this is a Ryzen 3 motherboard and apparently has
built in graphics. It didn't work when I first built the machine but
upgrading to the latest kernel (5.4.x) all now seems good and the
performance is the best I've had from ardour, and that's running full
screen at 4K. I can scroll!
Anyway, seems that the Vega 8 (Ryzen built-in) graphics option is more
than adequate so if anyone reads this thread looking for answers, that's
another option.
bjb
On Sun, Mar 29, 2020 at 10:43:44AM +0100, Ben Bell wrote:
> Apologies for this being only tangentially on-topic, but has anyone got a
> recommendation for a decent video card for driving a 4K monitor under
> Linux?
>
> The audio connection here is that I'm looking for something that is passively
> cooled (or at very quiet if not), performs well, and is low-latency friendly
> (so probably not proprietary drivers)? With those requirements I don't
> really fancy my chances in the "google, buy and hope" approach.
>
> I've been using cheap nvidias with nouveau for a while but performance of
> certain operations (scrolling, dragging/resizing windows) is painfully slow,
> particularly since I made the jump to a 4K monitor.
>
> Has anyone got some success stories?
>
> bjb
> _______________________________________________
> Linux-audio-user mailing list
> Linux-audio-user(a)lists.linuxaudio.org
> https://lists.linuxaudio.org/listinfo/linux-audio-user
On 3/28/20 11:43 PM, Ben Bell wrote:
> Apologies for this being only tangentially on-topic, but has anyone got a
> recommendation for a decent video card for driving a 4K monitor under
> Linux?
>
> The audio connection here is that I'm looking for something that is passively
> cooled (or at very quiet if not), performs well, and is low-latency friendly
> (so probably not proprietary drivers)? With those requirements I don't
> really fancy my chances in the "google, buy and hope" approach.
>
> I've been using cheap nvidias with nouveau for a while but performance of
> certain operations (scrolling, dragging/resizing windows) is painfully slow,
> particularly since I made the jump to a 4K monitor.
>
> Has anyone got some success stories?
>
> bjb
I don't know how helpful this will be to you, but I have a Dell laptop
(XPS 15 7590) with 4K HDR OLED display. For video hardware, it includes
both Intel HD Graphics 630 hardware and an NVidia GTX 1650 with 4GB of
GDDR5.
I've never used the NVidia side at all, just the Intel HD that's
supported out of the box with Debian. I'm also running an RT kernel and
audio setup.
I've never experienced the performance issues you mention above.
Those issue do sound familiar, though. My wife had a netbook with 2GB of
RAM and some onboard Intel hardware with shared system memory for
handling the display. It handled the built-in 1280x800 display with no
problems. But when connected to an external 1920x1080 monitor, those
kinds of issues would happen. I think it was simply because it forced
the video hardware to use more shared memory and that affected the rest
of the system.
My laptop's Intel hardware has driven 4K HDR videos full screen in the
background while I'm going other things with it. So you might see if
getting something like that would be sufficient.
That might mean a motherboard replacement. I don't know if the Intel HD
630 is available as a standalone video card.
As far as cooling noises go... I've never heard a fan sound from my
laptop. It seems to have some kind of passive cooling system going. But
Hawaii is a warmer place than most of the United States. Right now the
CPU's at 129F, running at 900MHz. When the CPU really cranks up - all 8
cores/16 threads running all out - it hits over 200F at 4.2GHz. I've
never seen it hit its nominal 5GHz. I have it sitting on a laptop cooler
that seems to keep it under control.
So, anyway, I think an Intel HD 630 would do what you want without any
problems.
Hope that helps!
--
David W. Jones
gnome(a)hawaii.rr.com
authenticity, honesty, community
http://dancingtreefrog.com
"My password is the last 8 digits of π."
all open source drivers, the GT one is driving the monitors
On Sun, Mar 29, 2020 at 11:25 AM Ben Bell <bjb(a)crazydogs.org> wrote:
> Thanks Paul, that's helpful. Any idea which one is driving the monitors
> rather than the TV? And do you use the Open Source drivers or are the
> proprietary ones low latency friendly these days?
>
> bjb
>
>
> On Sun, Mar 29, 2020 at 10:00:23AM -0600, Paul Davis wrote:
> > bah, i left in the line "they are both radeon based", which is not true.
> >
> > also, proviso: i am not 100% sure that the one driving the "TV" Is
> actually
> > achieving 4K resolution, which means that my info may be useless for you.
> >
> > On Sun, Mar 29, 2020 at 9:59 AM Paul Davis <paul(a)linuxaudiosystems.com>
> > wrote:
> >
> > >
> > >
> > > On Sun, Mar 29, 2020 at 3:44 AM Ben Bell <
> bjb-linux-audio-user(a)deus.net>
> > > wrote:
> > >
> > >> Apologies for this being only tangentially on-topic, but has anyone
> got a
> > >> recommendation for a decent video card for driving a 4K monitor under
> > >> Linux?
> > >>
> > >
> > > I have 2 video cards installed, both selected on the basis of their
> > > passive cooling. They are both Radeon based
> > >
> > > GK208 [GeForce GT 710B]
> > > Caicos PRO [Radeon HD 7450]
> > >
> > > 1 of them run two non-4k monitors, the other runs a 4k "TV" screen.
> > >
> > > Setting up 3 monitors on Linux is tricky, but the basic set up with
> just
> > > one of either of them was completely painless and I've been happy with
> > > results both in terms of noise (none!) and performance.
> > >
> > > <https://lists.linuxaudio.org/listinfo/linux-audio-user>
> > >>
> > >
>
On Sun, Mar 29, 2020 at 3:44 AM Ben Bell <bjb-linux-audio-user(a)deus.net>
wrote:
> Apologies for this being only tangentially on-topic, but has anyone got a
> recommendation for a decent video card for driving a 4K monitor under
> Linux?
>
I have 2 video cards installed, both selected on the basis of their passive
cooling. They are both Radeon based
GK208 [GeForce GT 710B]
Caicos PRO [Radeon HD 7450]
1 of them run two non-4k monitors, the other runs a 4k "TV" screen.
Setting up 3 monitors on Linux is tricky, but the basic set up with just
one of either of them was completely painless and I've been happy with
results both in terms of noise (none!) and performance.
<https://lists.linuxaudio.org/listinfo/linux-audio-user>
>
Dear all,
Today I'd like to perform maintenance on the linuxaudio.org web server
around 20:00 CEST. Maintenance comprises moving from GlusterFS storage
to disk storage in order to improve performance of the web server.
GlusterFS seemed promising but through time we came to realize it's not
optimal for our situation.
Maintenance will take approx. 3 hours. During that period the sites
hosted on the web server won't be reachable as I'd like to shut down all
services before doing a final rsync. Thanks for your understanding.
Best regards,
Jeremy
Apologies for this being only tangentially on-topic, but has anyone got a
recommendation for a decent video card for driving a 4K monitor under
Linux?
The audio connection here is that I'm looking for something that is passively
cooled (or at very quiet if not), performs well, and is low-latency friendly
(so probably not proprietary drivers)? With those requirements I don't
really fancy my chances in the "google, buy and hope" approach.
I've been using cheap nvidias with nouveau for a while but performance of
certain operations (scrolling, dragging/resizing windows) is painfully slow,
particularly since I made the jump to a 4K monitor.
Has anyone got some success stories?
bjb