<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#c66">Comment # 66</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 Maik Freudenberg from <a href="show_bug.cgi?id=75985#c65">comment #65</a>) > Now with the acpi bug fixed, I applied both of your v2 patchsets with some > nip/tuck to a 4.16rc4+ kernel and ran into the next oddity: while the pci > quirk in general works, re-reading the header type will always return 0x00 > so the hda device is not added. > lspci confirms that the quirk is otherwise working: > 00: de 10 92 12 07 00 10 00 a1 00 02 03 00 00 80 00 > 480: 00 00 00 00 17 00 00 00 00 00 00 02 00 00 00 00 Hm, the multifunction bit is set. Try adding an msleep(100) after setting the bit at offset 0x488 and before re-reading the header type register. 100 ms is likely way too much, this is just to ensure it's not too short. Also, try changing DECLARE_PCI_FIXUP_CLASS_HEADER to DECLARE_PCI_FIXUP_CLASS_EARLY. Shouldn't make a difference but maybe I missed something. Does it work if you just set gpu->multifunction = 1?</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>