Install CS8409 speaker driver on pre-T2 MacBook Pros and iMacs - #9516
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j7j7 wants to merge 3 commits into
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Install CS8409 speaker driver on pre-T2 MacBook Pros and iMacs#9516j7j7 wants to merge 3 commits into
j7j7 wants to merge 3 commits into
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Those machines have speakers that stay silent with the in-tree codec. Detect MacBookPro13,* / 14,* and install snd-hda-macbookpro-dkms so the Apple amp path loads after reboot.
assert_hw used to rm the DMI fixture only after the assertion. fail() exits the process, so a mismatch leaked the file.
MacBookPro13/14 coverage from the existing CS8409 work also applies to iMac18,x and iMac19,x (CS8409/CS42L83). Verified on iMac18,3. Co-authored-by: Cursor <cursoragent@cursor.com>
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Summary
snd-hda-macbookpro-dkms(+linux-headers) on pre-T2 Macs whose speakers stay silent under in-treesnd_hda_codec_cs8409: MacBookPro13,x / 14,x and iMac18,x / iMac19,x.quattroand extends detection / docs / tests for iMacs.In-tree CS8409 binds the codec but never programs the external amps / CS42L83 path, so PipeWire shows a healthy unmuted sink with no output. The DKMS module replaces
snd-hda-codec-cs8409underupdates/after reboot.T2 Macs stay on
fix-t2.sh/apple-t2-audio-configand are excluded (iMacPro1,1,MacBookPro15,1, etc.).Hardware note
Verified on iMac18,3 (CS8409/CS42L83, codec subsystem
0x106b1000) on linux 7.1.9: speakers work once the Apple CS8409 path is loaded. MacBook Pro coverage is from #7140 (MacBookPro14,3).Test plan
./test/shell.d/cs8409-audio-test.sh(MacBook + iMac match/skip cases, install hook, migration, manual wording)lsmod | grep cs8409,aplay -lshows CS8409/CS42L83, speakers playMacBookPro15,1/iMacPro1,1): hook and migration no-opSupersedes / can close #7140 and draft #8285 once this and the pkgs package land together.
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