<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#c53">Comment # 53</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:imirkin@alum.mit.edu" title="Ilia Mirkin <imirkin@alum.mit.edu>"> Ilia Mirkin</a> <pre>(In reply to Lukas Wunner from <a href="show_bug.cgi?id=75985#c52">comment #52</a>) > (In reply to Ilia Mirkin from <a href="show_bug.cgi?id=75985#c49">comment #49</a>) > > (In reply to Maik Freudenberg from <a href="show_bug.cgi?id=75985#c47">comment #47</a>) > > > There's of course the possibility that some braindead vendor would ship a 3D > > > class tagged device actually having outputs. > > > > This happens. A lot. > > Ilia, do you have definitive knowledge of GPUs which > a) have a different class than PCI_CLASS_DISPLAY_VGA and > b) have working DP/HDMI outputs and > c) have an integrated HDA controller? > > I'm asking because get_bound_vga() in sound/pci/hda/hda_intel.c specifically > matches against PCI_CLASS_DISPLAY_VGA only. In other words, if a GPU with > the three above-listed properties exists and is built into a hybrid graphics > laptop, it is currently not registered with vga_switcheroo, which would be > wrong. I can say with some certainty that there are laptops running around, esp GM107's, whose pci class is 3D, and that have attached DP/HDMI outputs. I don't think the users in question ever asked about audio, so I don't know about the last bit. However I can't imagine that it wouldn't be there (esp once all the proper enablement is done). Is hda_intel only for intel? If so, I'm pretty sure that all intel vga devices are PCI_CLASS_DISPLAY_VGA. However if it's used for everything, then it needs to deal with DISPLAY_3D as well.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>