On Sun, 2021-10-10 at 08:38 +0800, Ed Greshko wrote:
On 10/10/2021 07:48, Jonathan
Ryshpan wrote:
On Sat, 2021-10-09 at 06:40 +0800, Ed Greshko wrote:
What results do you get if you boot your system with
the USB speakers disconnected and the connect them once
the system is fully booted?
I was listening to some audio when the sound stopped;
AudioEngine had disappeared from the list of output
devices. A log extract is attached (Audio-Crash.txt).
There may be a problem with the cable. The speakers are
attached to the computer with a USB extender cable, which
may not give as good a connection as is needed. So I moved
things around and connected the speakers without the
extender; we'll see if things get better. A log extract is
attached (Audio-Restore-ShortCable.txt).
Oh, I never did have much luck with USB extender cables.
FWIW, I don't use USB devices all that much. Other than
dongles I only have an HDMI capture device hooked to USB.
With speakers, I use Bluetooth. I find them more versatile.
I have changed the connection to Bluetooth, which worked well
for a while, except that sound quality may be a little less
good. However the connection is still flaky:
After
plugging in another sound device via USB, Bluetooth disconnects
from the speakers, producing the log message:
Oct 10 08:14:28 amito bluetoothd[15557]:
profiles/audio/avdtp.c:avdtp_connect_cb() connect to
AC:A9:B4:00:06:2E: Connection refused (111)
Does
anyone know what this means? The connection also drops fairly
frequently for no apparent reason. The only way to reconnect is
to either remove and reinsert the Bluetooth adapter or to reboot
the system.
The
Bluetooth adapter, an old Belkin USB dongle, produces this log
message when recognized:
Oct 09 22:01:10 amito udisksd[2157]: Mounted
/dev/sr0 at /run/media/jonrysh/我的光碟 on behalf of uid 1000
Definitely
made in China.
I would
like to try a different adapter (dongle). Can anyone recommend one? There are a lot of choices, and
the ones recommended (for M$ Windows) may not be the best for
Linux.