Difference between revisions of "Talk:PinePhone Hardware Issues"
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(→Evidence for/against the shim U101 fix: clarify that the main description of the procedure is at User:Earboxer/Shim_U101) |
(→Evidence for/against the shim U101 fix: October is the *10th* month, not 11th (without Caesar it would still be the 8th ...)) |
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== Evidence for/against the shim U101 fix == | == Evidence for/against the shim U101 fix == | ||
; Works for me 2024- | ; Works for me 2024-10-06 | ||
I [[User:Earboxer/Shim_U101|shimmed my U101]] per the advice given here. Based on two days of a small handful of tests, and after [https://codeberg.org/boud/pinephone_hacks/src/branch/main/bug_reporting/bug_status.md having earlier had a variety of audio and non-audio bugs] on my PinePhone v1.2b running [https://wiki.debian.org/Mobian Mobian/trixie], including [https://salsa.debian.org/Mobian-team/devices/pinephone-support/-/issues/27 this difficult-to-reproduce bug], my microphone appears to be working. I now have [https://packages.mobian.org out-of-the-box alsa-ucm-conf 1.2.12-1mobian1] and other packages at the Mobian default, with modem: FLOSS firmware 0.7.2 + ADSP 30.006.30.006. [[User:Boud|Boud]] ([[User talk:Boud|talk]]) 13:49, 6 October 2024 (UTC) | I [[User:Earboxer/Shim_U101|shimmed my U101]] per the advice given here. Based on two days of a small handful of tests, and after [https://codeberg.org/boud/pinephone_hacks/src/branch/main/bug_reporting/bug_status.md having earlier had a variety of audio and non-audio bugs] on my PinePhone v1.2b running [https://wiki.debian.org/Mobian Mobian/trixie], including [https://salsa.debian.org/Mobian-team/devices/pinephone-support/-/issues/27 this difficult-to-reproduce bug], my microphone appears to be working. I now have [https://packages.mobian.org out-of-the-box alsa-ucm-conf 1.2.12-1mobian1] and other packages at the Mobian default, with modem: FLOSS firmware 0.7.2 + ADSP 30.006.30.006. [[User:Boud|Boud]] ([[User talk:Boud|talk]]) 13:49, 6 October 2024 (UTC) | ||
:However, the out-of-the-box alsa-ucm-conf parameters still give bad audio quality as heard on the remote phone for phone calls "out in the field" as opposed to between people in nearby quiet rooms. [https://codeberg.org/boud/pinephone_hacks/src/branch/main/audio_hacks/Allwinner_A64_PinePhone/VoiceCall.conf This VoiceCall.conf file (commit `cf82dfb455`)], with the microphone U101 shimmed, has worked fine on several real-world tests. [[User:Boud|Boud]] ([[User talk:Boud|talk]]) 00:52, 1 November 2024 (UTC) | :However, the out-of-the-box alsa-ucm-conf parameters still give bad audio quality as heard on the remote phone for phone calls "out in the field" as opposed to between people in nearby quiet rooms. [https://codeberg.org/boud/pinephone_hacks/src/branch/main/audio_hacks/Allwinner_A64_PinePhone/VoiceCall.conf This VoiceCall.conf file (commit `cf82dfb455`)], with the microphone U101 shimmed, has worked fine on several real-world tests. [[User:Boud|Boud]] ([[User talk:Boud|talk]]) 00:52, 1 November 2024 (UTC) | ||
Latest revision as of 00:58, 1 November 2024
Evidence for/against the shim U101 fix
- Works for me 2024-10-06
I shimmed my U101 per the advice given here. Based on two days of a small handful of tests, and after having earlier had a variety of audio and non-audio bugs on my PinePhone v1.2b running Mobian/trixie, including this difficult-to-reproduce bug, my microphone appears to be working. I now have out-of-the-box alsa-ucm-conf 1.2.12-1mobian1 and other packages at the Mobian default, with modem: FLOSS firmware 0.7.2 + ADSP 30.006.30.006. Boud (talk) 13:49, 6 October 2024 (UTC)
- However, the out-of-the-box alsa-ucm-conf parameters still give bad audio quality as heard on the remote phone for phone calls "out in the field" as opposed to between people in nearby quiet rooms. This VoiceCall.conf file (commit `cf82dfb455`), with the microphone U101 shimmed, has worked fine on several real-world tests. Boud (talk) 00:52, 1 November 2024 (UTC)
Speculation about why the shim U101 fix may work
Any proper explanations? Some hypotheses include:
- electrical isolation/contacts:
- the shim improves an electrical contact that was too weak (not contacting properly); or
- prevents some weak electrical contact that causes current to go in the wrong direction.
- sound wave air transmission:
- the shim pushes the microphone slight higher above the back of the phone in order to better match the hole in the chassis.
Boud (talk) 13:49, 6 October 2024 (UTC)
I've updated the above list based on a matrix chat favouring "improving an electrical contact". Boud (talk) 17:52, 8 October 2024 (UTC)