[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

I've fixed this issue on my Asus UX550VE, Ubuntu 20.04, kernel 5.4.0-42. I followed Optiman's instructions, which are supposed to "activate bottom speakers" using jack retasking: https://askubuntu.com/questions/973690/my-volume-is-either-max-volume- or-muted-no-middle-ground -- You received

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

** Tags added: focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1721345 Title: ALC295 codec seems to have Master and PCM channels swapped To manage notifications about this bug go to:

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

Same here. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1721345 Title: ALC295 codec seems to have Master and PCM channels swapped To manage notifications about this bug go to:

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

Still occurs on this Asus in 20.04 with kernel 5.4.0-15 and the -proposed -17. Super annoying, I have to fix this for the Asus' owner by adding the [Element Master] workaround on every Ubuntu upgrade or in case the responsible package updates. -- You received this bug notification because you

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

Thanks, will do, but will take a bit as I don't always have access to the machine -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1721345 Title: ALC295 codec seems to have Master and PCM channels

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

Please test latest mainline kernel: https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.4-rc4/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1721345 Title: ALC295 codec seems to have Master and PCM

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

Still occurs on 19.10 after upgrade, on the same Asus ZenBook Flip 15 UX561UD as in comment #30. As the upgrade replaced "/usr/share/pulseaudio/alsa-mixer/paths/analog-output.conf.common", had to reapply the workaround from comment #8 (which is kind of bearable on a machine that is has a

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

** Tags added: cscc -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1721345 Title: ALC295 codec seems to have Master and PCM channels swapped To manage notifications about this bug go to:

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

** Attachment added: "lspci.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1721345/+attachment/5269645/+files/lspci.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1721345 Title:

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

Still occurs with Ubuntu 19.04 on Asus ZenBook Flip 15 UX561UD. The workaround helped. Codec: Realtek ALC295 ** Attachment added: "alsa-info.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1721345/+attachment/5269644/+files/alsa-info.txt -- You received this bug notification

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

SO bettr to keep how it is, and use a PA config patch that is manually applied. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1721345 Title: ALC295 codec seems to have Master and PCM channels

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

Your patch added an extra requirement to get sound, i.e. that the Headphone volume has to be raised in order to get sound from speakers. It is not only counter-intuitive but also works against how PA operates in general. PA does not raise Headphone volume unless headphones are actually plugged in.

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

Master should also change the speaker volume with my patch. But probably we should keep it the way it is... ** Changed in: linux (Ubuntu) Assignee: Kai-Heng Feng (kaihengfeng) => (unassigned) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

When using a stock kernel and stock PA/Alsa configurations, the volume controls end up raising Master only without also raising PCM as PA thinks that PCM and Master are merged. This codec does not require raising Headphone volume for speakers, it only requires it when actually using headphones.

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

That's right, what you describe is exactly what we are looking for: to use headphone change speaker volume. I am not sure why default PA doesn't work though. Do you mean that after removing all PA and ALSA conf, the volume slider in gnome-control-center does not work? -- You received this bug

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

Output of amixer -c 0 controls: numid=15,iface=CARD,name='Front Headphone Jack' numid=42,iface=CARD,name='HDMI/DP,pcm=10 Jack' numid=18,iface=CARD,name='HDMI/DP,pcm=3 Jack' numid=24,iface=CARD,name='HDMI/DP,pcm=7 Jack' numid=30,iface=CARD,name='HDMI/DP,pcm=8 Jack'

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

I think Bass Speaker,Master and Headphone all have amp-out capability. They need PCM to be raised. PCM is analogous to a mixing console channel fader, and the former three are analogous to volume knobs on audio amplifiers. -- You received this bug notification because you are a member of Ubuntu

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

It does, but teh other two channels must be raised as well. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1721345 Title: ALC295 codec seems to have Master and PCM channels swapped To manage

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

Does "Master" change the output volume of speaker now? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1721345 Title: ALC295 codec seems to have Master and PCM channels swapped To manage

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

No, using stock pulseuadio configuration or the one I had patched will not work. I had to increase the headphone volume with alsamixer manually. Before your patch, I could change the volume by keeping master at 100% and vary the PCM channel. Thr PCM channel seems to alter the amplifier attached to

Re: [Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

> On 29 Oct 2017, at 4:48 PM, Dylan Borg wrote: > > The provided kernel has swapped the speaker and headphone channels. The > Headphone channel in alsamixer is controlling the laptop speakers! If > you need some alsa dumps to aid in correctly mapping the channels do not >

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

The provided kernel requires all three of Headphone,Master and PCM to be raised for sound to come put of the speakers. The stock kernel needs only Master and PCM to be raised. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

The provided kernel has swapped the speaker and headphone channels. The Headphone channel in alsamixer is controlling the laptop speakers! If you need some alsa dumps to aid in correctly mapping the channels do not hesitate to ask. -- You received this bug notification because you are a member

Re: [Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

> On 28 Oct 2017, at 1:42 AM, Dylan Borg wrote: > > Is it based on a kernel that is 4.13.5 or higher? 4.13 till 4.13.4 lead > to hung shutdowns on the machien in question. Higher. It’s 4.13.8 based. > > -- > You received this bug notification because you are a bug

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

Is it based on a kernel that is 4.13.5 or higher? 4.13 till 4.13.4 lead to hung shutdowns on the machien in question. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1721345 Title: ALC295 codec seems

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

Ok, use this one instead, http://people.canonical.com/~khfeng/lp1721345-4.13/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1721345 Title: ALC295 codec seems to have Master and PCM channels swapped

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

I cannot do that, the current nvidia drivers do not build against 4.14. If possible I could try a patches 4.13.9 kernel instead. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1721345 Title: ALC295

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

Please try the kernel here: http://people.canonical.com/~khfeng/lp1721345/ ** Changed in: linux (Ubuntu) Assignee: (unassigned) => Kai-Heng Feng (kaihengfeng) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

I wish anyone luck when trying to improve the status of the driver for this codec. Some aspects do feel weird such as the interplay between mixer channels. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

I got a better result by changing "volume=ignore" to "volume=100", that makes ure teh Master channel is stuck to 100% so teh woofers get used. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1721345

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

It's actually a valid bug. The problem is that node 0x06 does not have amp-out capability. Also there's no mixer that can connect 0x06 to another node with amp-out capability. I'll ask ALSA expert how to solve problem like this. ** Changed in: linux (Ubuntu) Status: Invalid => Confirmed

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

Ok, this issue can be fixed by modified pulseaudio instead of the kernel. Will mark this as fixed. For anyone else coming across this having the same issue please add: [Element Master] switch = mute volume = ignore before the PCM settings block in "/usr/share/pulseaudio/alsa-mixer/paths

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

The DKMS isues should be fixable by disabling "AMD Secure Memory Encryption" i.e. SME support in the 4.14 kernel. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1721345 Title: ALC295 codec seems to

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

** Attachment added: "dkms log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1721345/+attachment/4963026/+files/make.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1721345 Title:

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

NO, this is a fresh install on brand new hardware. Also I need the nvidia driver to work on thsi system which is impossible for now with the the 4.14 kernel. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

This is the installtion output: dylan@zenbook-pro:~/Downloads/kdebs$ sudo dpkg -i *.deb [sudo] password for dylan: Selecting previously unselected package linux-headers-4.14.0-041400rc3. (Reading database ... 288569 files and directories currently installed.) Preparing to unpack

[Bug 1721345] Re: ALC295 codec seems to have Master and PCM channels swapped

Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem? Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.14