PLMP Report
Windows 7
Windows 7 64-bit
1)Class Driver
AC3 Test -
Win7 (System)
6/30/2025
1256
Erratum
Run AC3 test on a system with the Microsoft HD Audio class
driver installed. Expected results: All AC3 kernel streaming data
ranges should advertise MinimumBitsPerSample = 16 and
MaximumBitsPerSample = 16. Actual results: HD Audio class
driver sometimes advertises MaximumBitsPerSample = 24.
Windows 7
Windows 7 64-bit
1)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
1)UAA Test -
Win7 (System)
6/1/2010
1348
Erratum
Errata 1348 Preview Errata - ASP Channel Mapping The Intel HD
Audio DCN 34-A2, HDMI/Multichannel, defines a mapping
between digital converter channels and HDMI slots; see section
7.3.3.41 of the DCN. Much of the verbiage is generalized in DCN
36-A to apply equally to DisplayPort slots. The latest versions of
all DCNs are posted on Intel's HD Audio standards page:
http://www.intel.com/standards/hdaudio/ The default mapping
from digital converter channels to slots is expected to be 0 -->
0, 1 --> 1, 2 --> ***3***, 3 --> ***2***, 4 --> 4, 5 --> 5, 6 --> 6,
and 7 --> 7.
Windows 7
Windows 7 64-bit
1)UAA Test -
Win7 (System)
9/30/2010
1198
Erratum
"High Definition Audio Device" devices need to comply with the
Intel High Definition Audio spec, as well as revisions (known as
Document Change Notifications, or DCNs.) One such DCN - in
particular, DCN 34-A2 - clarified the behavior of "pin sense"
verbs as applied to digital pins (S/PDIF, HDMI, and DisplayPort.)
Prior to the DCN, the language of the spec was unclear and
mistakenly implied that the "Impedance" bits could be used by
digital pins. The DCN clarified this to say that Impedance bits are
reserved for digital pins.
Windows 7
Windows 7 64-bit
1)UAA Test -
Win7 (System)
7/1/2011
1466
Erratum
Preview Filter: UAA Test - Intel Low Power DCN says "EPSS
implies KeepAlive, but only after July 1st 2011"
Windows 7
Windows 7 64-bit
1)UAA Test -
Win7 (System)
1/31/2011
1300
Erratum
HD Audio pin configuration document calls out setting Port
Connectivity to No Connection as the way to turn a pin off in a
particular system. UAA Test incorrectly tests such pins.
Windows 7
Windows 7 64-bit
1)UAA Test -
Win7 (System)
8/9/2010
1299
Erratum
The original HD Audio 1.0 specification contains a notion of
"presence detect", using electrical impedance which was
intended to apply only to analog pins. However, the language of
the specification was such that it could be read to apply to
digital pins as well - in particular, to S/PDIF pins. A DCN was
released to extend the notion of presence detect to digital pins
- in particular, to HDMI pins. This repurposed one of the
impedance bits, which were thought to be unused in digital pins,
to mean "ELD valid." The correct way for a S/PDIF pin to
respond to a Pin Sense verb is to set the highest bit (Presence
Detect) to 1 or 0 corresponding to whether a S/PDIF connection
is active; set the ELD Valid bit to 0 (since there is no such thing
as ELD for S/PDIF); and set the rest of the bits, which are
reserved for digital pins, to 0. This errata filter is a preview filter
to allow hardware manufacturers time to update any hardware
that used the impedance bits on digital pins.