(In reply to Imnotgivingmy nametoamachine from comment #17) > (In reply to Takashi Iwai from comment #16) > > OK, then I need to ping Intel audio people. > > > > Since the issue is with the HDMI audio: can you play via HDMI audio at all? > > At least no hang happens? > > Yes, I can play audio over HDMI on the TV just fine with Linux 5.8 or > previous, or Linux 5.9 and later with > CONFIG_SND_HDA_INTEL_HDMI_SILENT_STREAM disabled. > > Should I close the issue on DRM Intel? Oh, another detail that might be useful. Even with CONFIG_SND_HDA_INTEL_HDMI_SILENT_STREAM enabled this bug doesn't happen if the screen is connected *before* turning on the computer, and HDMI audio works too. But it isn't reliable as reconnecting the external screen, or changing the resolution, or even so much as changing the screen mode (changing to mirror for example) will then trigger this bug crashing the system.