<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [NVC1] HDMI audio device only visible after rescan" href="https://bugs.freedesktop.org/show_bug.cgi?id=75985#c112">Comment # 112</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [NVC1] HDMI audio device only visible after rescan" href="https://bugs.freedesktop.org/show_bug.cgi?id=75985">bug 75985</a> from <a class="email" href="mailto:lukas@wunner.de" title="Lukas Wunner <lukas@wunner.de>"> Lukas Wunner</a> <pre>(In reply to Przemysław Kopa from <a href="show_bug.cgi?id=75985#c111">comment #111</a>) > (In reply to Lukas Wunner from <a href="show_bug.cgi?id=75985#c110">comment #110</a>) > > What does "cat /sys/bus/pci/devices/0000:01:00.1/hdaudioC1D0/revision_id" say? > It says: 0x100100 > > > If you add "codec->link_down_at_suspend = 1;" to patch_nvhdmi() in > > sound/pci/hda/patch_hdmi.c, the issue may go away. > > > > The only question is whether your card's revision_id is listed in > > snd_hda_id_hdmi[] such that patch_nvhdmi() is executed for your card. > > I added "HDA_CODEC_ENTRY(0x10de0403, "GPU 0403 HDMI/DP", patch_nvhdmi)" to > snd_hda_id_hdmi[] (PCI ID of my Nvidia HDA wasn't there) and > "codec->link_down_at_suspend = 1;" to patch_nvhdmi(). With those changes > dGPU and HDA suspended normally (after echoing "auto" to HDA control file), > so I think that this is definiteley the right track! Glad to hear. You don't seem to have any commits in the kernel so far. Would you like to try and bake these changes into a proper patch? If not I'll gladly create and submit the patch myself but mentoring someone else make their first contribution is more beneficial to the community, hence my question. You could attach the patch to this bugzilla and we can provide you with comments before you submit it to the list.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>