<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [BXT/KBL] - HDMI - HD audio passthrough dont work" href="https://bugs.freedesktop.org/show_bug.cgi?id=98797#c101">Comment # 101</a> on <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [BXT/KBL] - HDMI - HD audio passthrough dont work" href="https://bugs.freedesktop.org/show_bug.cgi?id=98797">bug 98797</a> from <a class="email" href="mailto:lqvnguyen@hotmail.com" title="Achilles <lqvnguyen@hotmail.com>"> Achilles</a> <pre>(In reply to Jani Nikula from <a href="show_bug.cgi?id=98797#c93">comment #93</a>) > (In reply to chrisk2305 from <a href="show_bug.cgi?id=98797#c92">comment #92</a>) > > It is proven in this thread: > > <a href="https://forum.kodi.tv/showthread.php?tid=270298&page=95">https://forum.kodi.tv/showthread.php?tid=270298&page=95</a> > > > > All Windows Users can use HD Audio passthrough via the HDMI 2.0 (LSPCON) > > with FW 1.66. > > I'll take your word for it, rather than go through 95 pages of forums... ugh. > > --- > > Random debug note: We don't consider audio bandwidth requirements for link > training, only video mode. If the video mode just barely fits in the link, I > think it'll impact audio. Jani, If I may add, Dolby Digital and DTS passthrough works and Stereo PCM works. These are all limited to 1.5Mbps per the S/PDIF specs. Is it possible DP is being subjected to the limits of the S/PDIF specs in the DRM driver? Per Wikipedia: S/PDIF can carry two channels of uncompressed PCM audio or compressed 5.1/7.1 surround sound (such as DTS audio codec); it cannot support lossless formats (other than 2ch LPCM) such as Dolby TrueHD and DTS-HD Master Audio, that require greater bandwidth[2] like that available with HDMI or DisplayPort.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>