** Package changed: alsa-driver (Ubuntu) => linux (Ubuntu)
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https://bugs.launchpad.net/bugs/1851518
Title:
[950SBE/951SBE, Realtek ALC298, Speaker,
Quite some investigations you did there ironincoder, don't forget to
post here if you manage to get the speakers going. ;) I was actually
wondering where the correct place to post and get codec issues fixed is,
because this probably isn't the place? Is there a bug tracker for Alsa?
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ironincoder and I reported a kernel bug,
https://bugzilla.kernel.org/show_bug.cgi?id=207423
** Bug watch added: Linux Kernel Bug Tracker #207423
https://bugzilla.kernel.org/show_bug.cgi?id=207423
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for got the variable for browsers fix (if it happens to you). Add
`GTK_IM_MODULE=xim` to /etc/security/pam_env.conf file.
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Here's the full procedure to fix the headphones.
Step 1: Do the patch above, you can skip the [model] line if you wish since I
found it had no effects on anything. Please note that the subsystem id can be
different for various laptops (lenovo samsung etc...) so make sure you have the
correct
I have been trying to get ALC298 working for a while now and wanted to
share my findings. This issue exist on all distros and is an ALSA
problem (not pulseaudio). Verified it when found a fix for the headphone
by using the kernel's early patching feature. To use this feature, write
a simple patch
I attached the Realtek dump with my headphones plugged into the jack for
comparison.
** Attachment added: "RtHDDump.txt.headphonesInJack"
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1851518/+attachment/5353097/+files/RtHDDump.txt.headphonesInJack
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Exactly the same problem with Samsung Notebook 9 Pro (np930mbe-k04us)
which also has an ALC298.
Headphones are working with model=mono-speakers.
I attached my Realtek dump.
I'm also soliciting the arch forum for help (I'm running arch):
https://bbs.archlinux.org/viewtopic.php?pid=1897858
**
Same problem with Samsung Galaxy Book Flex 930QCG.
The Samsung Galaxy Chromebook and Galaxy Book Flex look very similar,
the sound chip should be the same, the Chromebook is open source and
also uses the Linux kernel, can we refer to the Chromebook code?
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Attached my realtek dump.
** Attachment added: "RealTek Dump"
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1851518/+attachment/5348304/+files/RtHDDump.zip
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I have exactly the same problem on a Samsung Galaxy Flex Book.
Headphones are working with the following
options snd-hda-intel model=mono-speakers
Speakers do not work.
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I own model NT950SBE, same issue: No sound at headphones and speaker. I
tried Ubuntu and Manjaro with latest kernels - no progress. After
changing Alss-config according to post #6, haedphones are working now.
Thanks.
/etc/modprobe.d/alsa-base.conf:
options snd-hda-intel model=mono-speakers
I
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: alsa-driver (Ubuntu)
Status: New => Confirmed
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dmesg output attached from #21, step 2)
** Attachment added: "dmesg.txt"
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1851518/+attachment/5305171/+files/dmesg.txt
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Hi,
1) Steps:
- Removed the option model=
- Rebooted
- turned off Secure Boot and booted with your test kernel.
Result:
No sound from speakers.
Very very quiet headphones.
2) Steps:
sudo set-coeff.sh
sudo su
echo 1 > /sys/module/snd_hda_codec/parameters/dump_coef
Result:
No sound from
Install the testing kernel and reboot,
Couldn't boot after installing all 3 .deb's:
error: /boot/vmlinuz-5.3.0.23.25+samsung-test-generic has invalid signature
error: you need to load the kernel first
Press any key to
Please remove any modle= from alsa-base.conf
Install the testing kernel and reboot, then test headphone and speaker with the
testing kernel.
https://people.canonical.com/~hwang4/samsung-test/
(to install the testing kernel, sudo dpkg -i linux-modules-xxx.deb; sudo dpkg
-i
Attachment to #17 was incorrect (forgot to turn on coefficients)
Attached is alsa-info with coefficients.
** Attachment added: "alsa-info-dell-headset3-with-coefficients.txt"
>>
nd If you have time, please redo the test of #10, after finishing all commands,
please generate an alsa-info.txt-with-coeff, let us check if all those commands
successfully executed.
<<<
Option: dell-headset3
Headphone works,
>
please verify that both speaker and headphone work well under windows, then
using this tool to collect a log under windows, the log is a useful reference
for linux.
<
Output attached; looks like this might be helpful to get the speakers to
work.
Thank
If you have time, please run #13 on the windows10.
And If you have time, please redo the test of #10, after finishing all
commands, please generate an alsa-info.txt-with-coeff, let us check if
all those commands successfully executed.
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<<<
Ah, please test model=dell-headset3, it should work.
And please also add options snd-hda-codec-realtek dyndbg, then boot the
system without the headphone plugged.
after boot up, plug headphone, and test if it works well. If it works well,
please upload the dmesg.
Ah, please test model=dell-headset3, it should work.
And please also add options snd-hda-codec-realtek dyndbg, then boot the
system without the headphone plugged.
after boot up, plug headphone, and test if it works well. If it works
well, please upload the dmesg.
thx.
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And for speaker's issue, please verify that both speaker and headphone
work well under windows, then using this tool to collect a log under
windows, the log is a useful reference for linux.
thx.
** Attachment added: "RtHDDump_V236.zip"
FYI: I just re-tested with model=mono-speakers, and there the headhpone
output likewise does not change for any of the above settings: it works
great the entire time.
Thanks,
Martin
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Hi,
I was surprised, but none of these settings helped. Mode was set originally to
options snd-hda-intel model=headset-mode-no-hp-mic
sudo hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x8e
sudo hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0x20
//check if headphone can output sound normally?
Please remove the model= or keep model=headset-mode-no-hp-mic
When headphone is very very quiet, please run:
sudo hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x8e
sudo hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0x20
//check if headphone can output sound normally?
sudo hda-verb
Using options snd-hda-intel model=headset-mode-no-hp-mic
Result:
Headphones: very very quiet
Internal speakers: Nothing
Alsa-info is attached.
Thank you.
** Attachment added: "alsa-info-with-coefficients-headset-mode-no-hp-mic.txt"
Please test:
options snd-hda-intel model=headset-mode-no-hp-mic
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https://bugs.launchpad.net/bugs/1851518
Title:
[950SBE/951SBE, Realtek ALC298, Speaker,
Made a little progress: headphones work with
/etc/modprobe.d/alsa-base.conf:
options snd-hda-intel model=mono-speakers
Volume is loud and clear, in stereo!
alsa-info.sh output is attached with coefficients. Headphones were not
plugged in at that time to keep the diffs to a minimum.
**
I will find a machine wit alc298 next week, and compare the coeff with
your machine.
thx.
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Title:
In the last few days, I've tried a few more things (incl. re-installing
alsa, pulseaudio multiple times), but still have the same issue:
headphones are extremely quiet, and nothing coming out of the internal
speakers. The alsa-info with coefficients is attached.
Thanks for looking.
**
Please collect an alsa-info.txt with coeff dumped:
sudo su
echo 1 > /sys/module/snd_hda_codec/parameters/dump_coef
then run alsa-info and upload the log.
thx.
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I have a very similar issue with another Samsung laptop:
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1850702
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