# \[RESPONDED\] Audio jack output "floats" when no signal for n seconds **URL:** \ **Category:** Linux\ **Created:** [March 30, 2024, 10:09pm UTC](https://community.frame.work/t/responded-audio-jack-output-floats-when-no-signal-for-n-seconds/47990 "2024-03-30T22:09:11Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Yarko\_Tymciurak](https://sea1.discourse-cdn.com/flex001/user_avatar/community.frame.work/yarko_tymciurak/32/19149_2.png) [@Yarko\_Tymciurak](https://community.frame.work/u/Yarko_Tymciurak)\ **Post date:** [March 30, 2024, 10:09pm UTC](https://community.frame.work/t/responded-audio-jack-output-floats-when-no-signal-for-n-seconds/47990/1 "2024-03-30T22:09:12Z")
On Framwork 13 DIY AMD Ryzen 7040 series (specifically 7840U w/ Radeon 780 Graphics), Ubuntu 22.04.04 - I’ve started using this as my “desktop” on my desktop… on my NUC, I had a headphone-jack to RCA jack connection to my stereo amplifier. On the Framework, it “acts like” the chip-set gets shut-off after something like 15s of “no audio input signal”, which is fine… but the ensuing noise sounds like any semblance of “ground” is also disconnected. (and WOW is it ever amplified by the 15" subwoofer I have connected to my stereo). I can toggle mute to stop it for another 15s, but mostly, if the phone rings I have to yank the headphone cable out of the laptop, or have my eardrums blown(!)… Has any one else encountered this? I could get some other path than the analog jack to drive my stereo, but… this seems like such a _basic_ problem (leaving a “floating” line on output). ---
**Author:** ![Shiroudan](https://sea1.discourse-cdn.com/flex001/user_avatar/community.frame.work/shiroudan/32/15620_2.png) [@Shiroudan](https://community.frame.work/u/Shiroudan)\ **Post date:** [March 31, 2024, 12:37am UTC](https://community.frame.work/t/responded-audio-jack-output-floats-when-no-signal-for-n-seconds/47990/2 "2024-03-31T00:37:17Z")
Sounds similar to an old problem, Framework’s built-in DAC generally just doesn’t have great SNR, as well as having some power state issues. I’d recommend picking up a $5 Apple USB-C Dongle or something of the like. ---
**Author:** ![Herve\_Boinnard](https://sea1.discourse-cdn.com/flex001/user_avatar/community.frame.work/herve_boinnard/32/15207_2.png) [@Herve\_Boinnard](https://community.frame.work/u/Herve_Boinnard)\ **Post date:** [April 2, 2024, 10:41pm UTC](https://community.frame.work/t/responded-audio-jack-output-floats-when-no-signal-for-n-seconds/47990/3 "2024-04-02T22:41:07Z")
I have a possible fix shared by Andres on another thread: > [@Suggestions for USB Audio Interface for Linux Framework 13](http://community.frame.work/t/suggestions-for-usb-audio-interface-for-linux-framework-13/48086/2): > > Regarding the signal cut and interferences after a few seconds of silence, it is related to power saving measures in the kernel module. Can be disabled without any noticeable consequence as described here: [https://wiki.archlinux.org/title/Framework\_Laptop\_13#Headset\_jack](https://wiki.archlinux.org/title/Framework_Laptop_13#Headset_jack) For me, I still get interferences when suspended, for a few seconds after shutdown, and when being shut down but unplugged to powercord but plugged to a DP monitor… But for the rest, it is good ---
**Author:** ![Matt\_Hartley](https://sea1.discourse-cdn.com/flex001/user_avatar/community.frame.work/matt_hartley/32/13623_2.png) [@Matt\_Hartley](https://community.frame.work/u/Matt_Hartley)\ **Post date:** [April 3, 2024, 12:48am UTC](https://community.frame.work/t/responded-audio-jack-output-floats-when-no-signal-for-n-seconds/47990/4 "2024-04-03T00:48:19Z")
> [@Yarko\_Tymciurak](#): > > On Framwork 13 DIY AMD Ryzen 7040 series (specifically 7840U w/ Radeon 780 Graphics), Ubuntu 22.04.04 - > > I’ve started using this as my “desktop” on my desktop… on my NUC, I had a headphone-jack to RCA jack connection to my stereo amplifier. > > On the Framework, it “acts like” the chip-set gets shut-off after something like 15s of “no audio input signal”, which is fine… but the ensuing noise sounds like any semblance of “ground” is also disconnected. (and WOW is it ever amplified by the 15" subwoofer I have connected to my stereo). > > I can toggle mute to stop it for another 15s, but mostly, if the phone rings I have to yank the headphone cable out of the laptop, or have my eardrums blown(!)… > > Has any one else encountered this? I could get some other path than the analog jack to drive my stereo, but… this seems like such a _basic_ problem (leaving a “floating” line on output). Hmm, not something I have experienced. If this is with the OEM D kernel, this may be worth filing a bug report against. ---
**Author:** ![Yarko\_Tymciurak](https://sea1.discourse-cdn.com/flex001/user_avatar/community.frame.work/yarko_tymciurak/32/19149_2.png) [@Yarko\_Tymciurak](https://community.frame.work/u/Yarko_Tymciurak)\ **Post date:** [April 3, 2024, 6:04am UTC](https://community.frame.work/t/responded-audio-jack-output-floats-when-no-signal-for-n-seconds/47990/5 "2024-04-03T06:04:12Z")
Thanks, Shiroudan – this works. However, the core problem still … annoys the engineer in me, although I will say, the audiofile/flac files I created, was playing seem to sound crisper, cleaner (I can hear subtle details in acoustic guitar strings, and things like that) over the USB-C route (so I’m likely to keep it). ---
**Author:** ![Yarko\_Tymciurak](https://sea1.discourse-cdn.com/flex001/user_avatar/community.frame.work/yarko_tymciurak/32/19149_2.png) [@Yarko\_Tymciurak](https://community.frame.work/u/Yarko_Tymciurak)\ **Post date:** [April 3, 2024, 6:08am UTC](https://community.frame.work/t/responded-audio-jack-output-floats-when-no-signal-for-n-seconds/47990/6 "2024-04-03T06:08:49Z")
Nice find! Well - forgive the (retired) engineer here: perhaps the circuit design on the analog audio out is… missing something which would address this. “Not turning off” a faulty designed piece feels like an awful hack (!). I will try it tomorrow (past midnight now) just to confirm that it indeed does provide the audible relief to a powered down chipset which doesn’t by switching to “grounded” signal lines (or whatever the appropriate result would be). Goes to show: people don’t think about, care about analog mini-jack outputs … which is (?) the problem. Of course, if costs would be driven much, then maybe that jack should be eliminates, and a plug module (which does it correctly) be the solution. There is USB, Bluetooth, HDMI, and other existing paths. ---
**Author:** ![Yarko\_Tymciurak](https://sea1.discourse-cdn.com/flex001/user_avatar/community.frame.work/yarko_tymciurak/32/19149_2.png) [@Yarko\_Tymciurak](https://community.frame.work/u/Yarko_Tymciurak)\ **Post date:** [April 3, 2024, 6:16am UTC](https://community.frame.work/t/responded-audio-jack-output-floats-when-no-signal-for-n-seconds/47990/7 "2024-04-03T06:16:26Z")
Hmm… I just installed Ubuntu 22.04 on the new Framework as instructed. Didn’t think of (know of) the OEM D kernal. I may try that to see if / how it affects this. For ref (for others): > **[Linux Kernel 6.5 is Ready to Install in Ubuntu 22.04 LTS | UbuntuHandbook](https://ubuntuhandbook.org/index.php/2023/09/linux-kernel-6-5-is-ready-to-install-in-ubuntu-22-04-lts/)** …so far, so good… will check if it affects the audio jack issue…