28 Sep
2011
28 Sep
'11
6:01 p.m.
Abdelghani Ouchabane wrote:
in /proc/asound/card0/codec#2
system 1 : Subsystem Id: 0x7fafffdd system 2 : Subsystem Id: 0xffffffff system 3 : Subsystem Id: 0xff7f7fa3
Why the "Subsystem Id" is different between the three systems?
This is a HDA codec register that should be initialized by the BIOS. Apparently, yours doesn't, and the register contents are somewhat random.
Bug whoever is responsible for that BIOS. A system not initializing the pin config and subsystem registers is a violation of the HDA specification.
Regards, Clemens