<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [NVC1] HDMI audio device only visible after rescan" href="https://bugs.freedesktop.org/show_bug.cgi?id=75985#c74">Comment # 74</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [NVC1] HDMI audio device only visible after rescan" href="https://bugs.freedesktop.org/show_bug.cgi?id=75985">bug 75985</a> from <a class="email" href="mailto:rn3aoh.g@gmail.com" title="Eugene Medvedev <rn3aoh.g@gmail.com>"> Eugene Medvedev</a> <pre>(In reply to Maik Freudenberg from <a href="show_bug.cgi?id=75985#c27">comment #27</a>) > Created <a href="attachment.cgi?id=136418" name="attach_136418" title="Kernel module to toggle audio function">attachment 136418</a> <a href="attachment.cgi?id=136418&action=edit" title="Kernel module to toggle audio function">[details]</a> > Kernel module to toggle audio function I have a somewhat strange variation on the bug when using your kernel module workaround. MSI GE63 Raider 8RF looks like this when everything's working: 00:00.0 Host bridge: Intel Corporation 8th Gen Core Processor Host Bridge/DRAM Registers (rev 07) 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16) (rev 07) 00:02.0 VGA compatible controller: Intel Corporation Device 3e9b 00:12.0 Signal processing controller: Intel Corporation Cannon Lake PCH Thermal Controller (rev 10) 00:14.0 USB controller: Intel Corporation Cannon Lake PCH USB 3.1 xHCI Host Controller (rev 10) 00:14.2 RAM memory: Intel Corporation Cannon Lake PCH Shared SRAM (rev 10) 00:14.3 Network controller: Intel Corporation Wireless-AC 9560 [Jefferson Peak] (rev 10) 00:16.0 Communication controller: Intel Corporation Cannon Lake PCH HECI Controller (rev 10) 00:17.0 SATA controller: Intel Corporation Device a353 (rev 10) 00:1d.0 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port 9 (rev f0) 00:1d.6 PCI bridge: Intel Corporation Device a336 (rev f0) 00:1f.0 ISA bridge: Intel Corporation Device a30d (rev 10) 00:1f.3 Audio device: Intel Corporation Cannon Lake PCH cAVS (rev 10) 00:1f.4 SMBus: Intel Corporation Cannon Lake PCH SMBus Controller (rev 10) 00:1f.5 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH SPI Controller (rev 10) 01:00.0 VGA compatible controller: NVIDIA Corporation GP104M [GeForce GTX 1070 Mobile] (rev a1) 01:00.1 Audio device: NVIDIA Corporation GP104 High Definition Audio Controller (rev a1) 02:00.0 Non-Volatile memory controller: Kingston Technology Company, Inc. Device 5008 (rev 01) 03:00.0 Ethernet controller: Qualcomm Atheros Killer E2500 Gigabit Ethernet Controller (rev 10) What's strange is that upon cold boot -- using the proprietary driver -- the audio subdevice is missing entirely -- even from "lspci -H1" and can't be enabled: [ 3.214369] nvhda: version 0.01 [ 3.214373] nvhda: Found nv VGA device 0000:01:00.0 [ 3.214377] nvhda: enabling audio [ 3.214378] nvhda: Not multifunction, no audio [ 3.214380] nvhda: Succesfully loaded. Audio 0000:01:00.0 is off Unloading and reloading the module after the boot has completed makes no difference, it doesn't work. Upon suspending and resuming once, however, the device is there on "lspci -H1", and the module can enable it. I ended up setting the module up to unload on suspend and load on resume, so that I can just do a suspend/resume when I need to use HDMI output, which isn't that often. I can supply further data and experiment a bit if needed, but my understanding of this area of hardware is essentially nil.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>