MLP Report
Errata and Contingencies
Operating System Failing Test
Expiry
Date
ID
Number Type Error Description
Windows 7
Windows 7 64-bit
Windows Vista
Windows Vista 64-bit
PCI Hardware
Compliance
Test For
System
6/1/2010 1241
Erratum
This happens because the PCI Compliance test assumes that if the
Data Link Layer Link Active Reporting Capable bit in the Link
Capabilities register for a given PCIe port is set then that indicates
that the Data Link Layer Link Active bit will also be set. This is an
incorrect assumption because the Data Link Link Layer Link Active bit
can be reset when there is no device below the port. This assertion
needs to be removed from the PCIHCT. The current architecture of
the PCIHCT prevents it from knowing whether devices exist below a
bridge/port.
Windows 7
Windows 7 64-bit
Windows Vista
Windows Vista 64-bit
HDAudio Class
Driver Fidelity
Test - Vista
(System,
Manual)
12/1/2009 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 Vista
Windows Vista 64-bit
1) Fidelity Test
- Vista (System,
Manual)
2) HDAudio
Class Driver
Fidelity Test -
Vista (System,
Manual)
12/1/2009 966
Erratum
Fidelity Test includes a "System Activity Test" that verifies audio
fidelity is not compromised during system activity. It uses an activity
generator called rws.exe (Real World Stress) which has a bug that
causes it to hit an access violation. When this happens it exits with
return code 0xC00000005, or -1073741819.
Windows 7
Windows 7 64-bit
Windows Vista
Windows Vista 64-bit
Fidelity Test -
Vista (System,
Manual)
12/31/2009 1238
Erratum
Fidelity Test now includes a "Render Power Transition" test. This
preview filter covers all errors in this new test of SYSFUND-0050.
Windows 7
Windows 7 64-bit
Windows Vista
Windows Vista 64-bit
HDAudio Class
Driver Test -
Vista or
Server08
(System)
6/1/2010 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
Windows Vista
Windows Vista 64-bit
UAA Test -
Vista or
Server08
(System)
12/1/2009 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
Wave Test -
Vista or
Server08
(System)
6/1/2010 1281
Erratum
Run "Data Intersection Test\Capture Streaming\Check Supported
Formats" out of WaveTest on a system containing audio devices that
are "disabled" via the Sound Control panel. Expected results: should
succeed. Actual results: fail with "Failed to find any endpoints for the
current pin" and "Failed to decide if current data intersection test
should be skipped"