<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [HSW HDMI] Audio with 44.1 khz not working when 1920x1080p screen refreshrate > 30hz" href="https://bugs.freedesktop.org/show_bug.cgi?id=97442#c16">Comment # 16</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [HSW HDMI] Audio with 44.1 khz not working when 1920x1080p screen refreshrate > 30hz" href="https://bugs.freedesktop.org/show_bug.cgi?id=97442">bug 97442</a> from <a class="email" href="mailto:Mark_Wilczynski@hotmail.com" title="Mark Wilczynski <Mark_Wilczynski@hotmail.com>"> Mark Wilczynski</a> <pre>I figured out why I was seeing video frame skipping when playing 59.940 fps content using <a href="mailto:1920x1080@59.940">1920x1080@59.940</a> video mode. When the pipeline is configured for regular 8-bit output, the refresh rate measures 59.94005994. This is virtually perfect for the requested modeline: Modeline 0:"" 0 148352 1920 2008 2052 2200 1080 1084 1089 1125 0x0 0x5 When the pipeline is configured for 12=bit output, the refresh rate measures 59.89304812. This causes a frame to be skipped every 21.2 seconds (1/(59.94005994-59.89304812)) in order to stay in sync with the expected 59.940 rate. I measured the actual vsync rate using the GPU counters in the PIPE_FRMCNT and PIPE_FRMTMSTMP registers. In Windows 10, the refresh rate is correct at both 8-bit and 12-bit output so there must be some error in the Linux driver when setting up the pixel clock or its dividers.</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>