[Intel-gfx] the monitors with working Displayport audio
Wu Fengguang
fengguang.wu at intel.com
Wed Nov 9 08:28:28 CET 2011
Here are the EDID for the DELL monitors, grabbed by command
cp /sys/class/drm/card0-DP-3/edid .
Thanks,
Fengguang
On Wed, Nov 09, 2011 at 03:20:53PM +0800, Wu Fengguang wrote:
> Hi Takashi,
>
> I enumerated all the DELL DisplayPort monitors in our lab and find
> only two of them being able to produce audible DisplayPort audio...
>
> - DELL 2408WFP
> - DELL 2709W
> - DELL 3008WFP
> no CEA extension found
>
> - DELL U2410
> ELD reports OK but cannot hear DP sound
>
> monitor_present 1
> eld_valid 1
> monitor_name DELL U2410
> connection_type DisplayPort
> eld_version [0x2] CEA-861D or below
> edid_version [0x3] CEA-861-B, C or D
> manufacture_id 0xac10
> product_id 0xf017
> port_id 0x0
> support_hdcp 0
> support_ai 0
> audio_sync_delay 0
> speakers [0x1] FL/FR
> sad_count 1
> sad0_coding_type [0x1] LPCM
> sad0_channels 2
> sad0_rates [0xe0] 32000 44100 48000
> sad0_bits [0xe0000] 16 20 24
>
> - DELL U3011
> ELD and DP sound both OK
>
> monitor_present 1
> eld_valid 1
> monitor_name DELL U3011
> connection_type DisplayPort
> eld_version [0x2] CEA-861D or below
> edid_version [0x3] CEA-861-B, C or D
> manufacture_id 0xac10
> product_id 0x4065
> port_id 0x0
> support_hdcp 0
> support_ai 0
> audio_sync_delay 0
> speakers [0xf] FL/FR LFE FC RL/RR
> sad_count 1
> sad0_coding_type [0x1] LPCM
> sad0_channels 6
> sad0_rates [0x1ee0] 32000 44100 48000 96000 176400 192000 384000
> sad0_bits [0xe0000] 16 20 24
>
> - Eizo FlexScan EV2333W
> ELD and DP sound both OK
>
> monitor_present 1
> eld_valid 1
> monitor_name EV2333W
> connection_type DisplayPort
> eld_version [0x2] CEA-861D or below
> edid_version [0x3] CEA-861-B, C or D
> manufacture_id 0xc315
> product_id 0x2068
> port_id 0x0
> support_hdcp 0
> support_ai 1
> audio_sync_delay 0
> speakers [0x1] FL/FR
> sad_count 1
> sad0_coding_type [0x1] LPCM
> sad0_channels 2
> sad0_rates [0x1ee0] 32000 44100 48000 96000 176400 192000 384000
> sad0_bits [0xe0000] 16 20 24
>
> Thanks,
> Fengguang
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