[Nouveau] [Bug 75985] [NVC1] HDMI audio device only visible after rescan

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=75985

--- Comment #42 from Maik Freudenberg <hhfeuer at gmx.de> ---
The hda devices on 3D controller are existing but not completely configured by
vendors leading to errors like
[ 4790.121207] pci 0000:07:00.1: [10de:0e0f] type 00 class 0x040300
[ 4790.121253] pci 0000:07:00.1: reg 0x10: [mem 0x00000000-0x00003fff]
[ 4790.121610] pci 0000:07:00.1: BAR 0: no space for [mem size 0x00004000]
[ 4790.121613] pci 0000:07:00.1: BAR 0: failed to assign [mem size 0x00004000]
[ 4790.121900] snd_hda_intel 0000:07:00.1: Disabling MSI
[ 4790.122493] snd_hda_intel 0000:07:00.1: can't ioremap BAR 0: [??? 0x00000000
flags 0x0]
[ 5661.858112] snd_hda_intel 0000:07:00.1: ioremap error

AFAIK, 3D class is used by nvidia to specifically mark the adapters without
display engines, like Teslas or some Optimus dGPUs. So excluding them should be
safe.
One thing that I don't know about but always had in the back of my mind are
Tegras, how those are handled or react.
Looking at the vgaswitcheroo patches, these look like a really fine way to
handle pm on these hda devices.

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/nouveau/attachments/20180303/500929c3/attachment.html>