<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [DP audio] The ITE DP audio fails with certain display resolution settings, using intel-drm nightly build kernel" href="https://bugs.freedesktop.org/show_bug.cgi?id=70524#c10">Comment # 10</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [DP audio] The ITE DP audio fails with certain display resolution settings, using intel-drm nightly build kernel" href="https://bugs.freedesktop.org/show_bug.cgi?id=70524">bug 70524</a> from <a class="email" href="mailto:ken.lin@advantech.com.tw" title="Ken Lin <ken.lin@advantech.com.tw>"> Ken Lin</a> <pre>(In reply to <a href="show_bug.cgi?id=70524#c9">comment #9</a>) > (In reply to <a href="show_bug.cgi?id=70524#c2">comment #2</a>) > > Created <a href="attachment.cgi?id=87719" name="attach_87719" title="kernel log info -drm/hda debug info">attachment 87719</a> <a href="attachment.cgi?id=87719&action=edit" title="kernel log info -drm/hda debug info">[details]</a> > > kernel log info -drm/hda debug info > > There logs are filled with HDMI being plugged, although there's some DP > stuff at the end too. Just to make sure, are you seeing the problem with > HDMI or DP? Please attach a dmesg with *only* the problematic case. It's > hard enough to pick out the relevant bits from the logs even then. 1. Use make menuconfig to define CONFIG_SND_DEBUG_VERBOSE in drm-intel-nightly kernel branch and re-install the kernel images in Fedora 19 on Haswell platform 2. Boot to Fedora 19 desktop and plug in a DP cable to connect the Haswell MB with DAC AMP board (DAC AMP board to DP monitor with another DP cable). => You could search "DP-1" keyword in the kernel log messages. 3. The DP monitor displays with pre-configured 1280x1024 then we launched the speaker-test GUI settings to test 5.1ch DP audio function => I think you could check "patch_hdmi.c" keyword for DP audio setting info in the kernel log messages. Please check the wave form document (in PDF) that I attached to this tracking thread for the details. I don't know if the issue results from the DP signal fine-tunes or incorrect audio data source (since it works with windows 7/XP drivers on the same platform) CONNECTOR:16:DP-1 CONFIG_SND_DEBUG_VERBOSE</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>