MLP Report

Operating System
Failing Test
Expiry
Date
ID
Number
Type
Error Description
Windows 7
Windows 7 64-bit
Windows Vista
Windows Vista 64-bit
Class Driver
Fidelity Test –
Win7 (System,
Manual)
7/31/2012
598
Erratum
The European Union requires the headphone output level to be
<= 150 mVrms for headphone jacks. There's a note in WLP
requirement AUDIO-0006 that states, in the presence of
regional regulations, the output level requirement for
headphones is dropped from >= 1000 mVrms to >= 120 mVrms.
This provides freedom for manufacturers to meet both the EU
<= 150 mVrms @ 32 Ohms and the WLP >= 120 mVrms @ 32
Ohms requirements. The Fidelity Test tests headphones at 300
Ohm load, though. Without knowledge of the output impedance
at the jack, the test cannot extrapolate what the output level at
32 Ohms would have been from the output level at 300 Ohms.
The test assumes that the output level at 32 Ohms will be
*less* than the output level at 300 Ohms, though. So any
measurement >= 120 mVrms at 300 Ohms "could be" a passing
result, depending on the output impedance.
Windows 7
Windows 7 64-bit
Class Driver KS
TopologyTest –
Win7 (System)
6/1/2015
1709
Erratum
Run Class Driver KS Topology Test on an HDMI audio device that
does not implement the Intel HD Audio HDMI DCNs.
Windows 7
Windows 7 64-bit
Windows Vista
Windows Vista 64-bit
UAA Test - Win7
(System)
6/1/2015
513
Erratum
UAA Test requires the Traffic Priority bit to be read/write -
however there are two specs that apply, and they conflict. One
says the bit must be read/write, the other says it must be read-
only. Contact has been made with the author of both specs
(Intel) but until this point is clarified we cannot fail submissions
containing this test failure.
Windows 7
Windows 7 64-bit
Windows Vista
Windows Vista 64-bit
USB Host
Controller
Compliance
(Automated)
6/1/2012
1787
Erratum
Errata 1787 This Preview Test is being filtered until the
expiration date of this Errata. After the expiration date of this
filter these failures must be fixed to have a passing submission.
Microsoft strongly recommends that these errors be
investigated prior to this test or job being required for
submission. XHCI spec compliance test is in preview
Windows Vista
Windows Vista 64-bit
HDAudio Class
Driver Test -
Vista or Server08
(System)
6/1/2011
142
Erratum
Errata 142 HDMI is required to support 44.1 kHz on Windows 7
The Windows Vista HD Audio class driver does not support 44.1
kHz sample rates. There is an errata to cover this violation of
AUDIO-0023. It was mistakenly applied to third-party drivers. As
of Windows 7, the Windows Vista HD Audio class driver
supports 44.1 kHz sample rates on hardware that advertises
support for it. AUDIO-0023 is applicable. This is a filter to allow
vendors to ship with systems that violated AUDIO-0023 but
were incorrectly filtered by the Vista filter. Hardware that does
not support 44.1 needs to be updated to support 44.1, and
advertise that support in a way that the Microsoft HD Audio
class driver can pick up on. Third-party drivers need to relay this
support to the OS correctly.