https://bugs.freedesktop.org/show_bug.cgi?id=81924

Priority: medium Bug ID: 81924 Assignee: dri-devel@lists.freedesktop.org Summary: No Audio over DisplayPort Severity: normal Classification: Unclassified OS: All Reporter: stefan.bruens@rwth-aachen.de Hardware: Other Status: NEW Version: DRI CVS Component: DRM/Radeon Product: DRI

Currently audio is not supported when DP is used for connecting the monitor.

This works if the monitor is connected using HDMI, or when fglrx is used.

I tried patching the driver with hardcoded values taken from the fglrx drivers using radeontool, unfortunately, this was not sufficient.

1. added call in atombios_encoders.c:radeon_atom_encoder_mode_set(...) to initialize audio when encoder mode is DP. 2. patched evergreen_hdmi.c:evergreen_hdmi_enable(...) and evergreen_hdmi_setmode(...) to set same register values as fglrx. 3. patched dce6_afmt.c to set values matching fglrx.

Something is missing here ...