<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [N56VZ, Realtek ALC663, Black Headphone Out, Right] No sound from Subwoofer in 2.1 mode" href="https://bugs.freedesktop.org/show_bug.cgi?id=91568#c19">Comment # 19</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [N56VZ, Realtek ALC663, Black Headphone Out, Right] No sound from Subwoofer in 2.1 mode" href="https://bugs.freedesktop.org/show_bug.cgi?id=91568">bug 91568</a> from <a class="email" href="mailto:superquad.vortex2@gmail.com" title="Raymond <superquad.vortex2@gmail.com>"> Raymond</a> <pre><a href="https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda?id=8e38395360844806041ea69ab9690f5f174bc40c">https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda?id=8e38395360844806041ea69ab9690f5f174bc40c</a> static const struct snd_pcm_chmap_elem asus_pcm_2_1_chmaps[] = { + { .channels = 2, + .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } }, + { .channels = 4, + .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, + SNDRV_CHMAP_NA, SNDRV_CHMAP_LFE } }, /* LFE only on right */ + { } since the subwoofer node 0x16 does not provide jack detect signal, the driver just create surround speaker phantom jack for those asus n751jm with alc668 , the subwoofer node 0x1a support jack detect, so it is possible to create "external subwoofer" jack for the detection of sonic master subwoofer on alc663 node 0x1e seem can report the status of the subwoofer but pincap does not expose this capability and lack of unsolicited event</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>