I just changed my RadeonHD 4670 for a 7870, and now when I type "aplay -l" I get many HDMI codecs instead of just one like for the previous

you have to specify CONFIG_SND_DYNAMIC_MINORS=y when building the driver

[ 4.637413] ALSA hda_codec.c:4506 Too many HDMI devices [ 4.637414] ALSA hda_codec.c:4508 Consider building the kernel with CONFIG_SND_DYNAMIC_MINORS=y [ 4.637644] ALSA control.c:352 control 0:0:0:HDMI/DP Jack:0 is already present [ 4.639220] hda_codec: cannot build controls for #0 (error -16)

can you post the system log if the graphic driver know hdmi, vga and two

...

mini display ports are connected or not ?

I cannot see anything in dmesg related, so attaching Xorg log.

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5.268590] [drm] Radeon Display Connectors [ 5.268592] [drm] Connector 0: [ 5.268593] [drm] DP-1 [ 5.268594] [drm] HPD4 [ 5.268595] [drm] DDC: 0x6530 0x6530 0x6534 0x6534 0x6538 0x6538 0x653c 0x653c [ 5.268596] [drm] Encoders: [ 5.268597] [drm] DFP1: INTERNAL_UNIPHY2 [ 5.268598] [drm] Connector 1: [ 5.268599] [drm] DP-2 [ 5.268600] [drm] HPD5 [ 5.268601] [drm] DDC: 0x6540 0x6540 0x6544 0x6544 0x6548 0x6548 0x654c 0x654c [ 5.268602] [drm] Encoders: [ 5.268603] [drm] DFP2: INTERNAL_UNIPHY2 [ 5.268603] [drm] Connector 2: [ 5.268604] [drm] HDMI-A-1 [ 5.268605] [drm] HPD1 [ 5.268606] [drm] DDC: 0x6550 0x6550 0x6554 0x6554 0x6558 0x6558 0x655c 0x655c [ 5.268607] [drm] Encoders: [ 5.268608] [drm] DFP3: INTERNAL_UNIPHY1 [ 5.268609] [drm] Connector 3: [ 5.268610] [drm] DVI-I-1 [ 5.268610] [drm] HPD6 [ 5.268612] [drm] DDC: 0x6580 0x6580 0x6584 0x6584 0x6588 0x6588 0x658c 0x658c [ 5.268612] [drm] Encoders: [ 5.268613] [drm] DFP4: INTERNAL_UNIPHY [ 5.268614] [drm] CRT1: INTERNAL_KLDSCP_DAC1

[ 7.613] (II) RADEON(0): Output DisplayPort-0 has no monitor section [ 7.626] (II) RADEON(0): Output DisplayPort-1 has no monitor section [ 7.693] (II) RADEON(0): Output HDMI-0 has no monitor section [ 7.713] (II) RADEON(0): Output DVI-0 has no monitor section [ 7.726] (II) RADEON(0): EDID for output DisplayPort-0 [ 7.740] (II) RADEON(0): EDID for output DisplayPort-1 [ 7.801] (II) RADEON(0): EDID for output HDMI-0 [ 7.801] (II) RADEON(0): Manufacturer: DON Model: 26 Serial#: 16843009 [ 7.801] (II) RADEON(0): Year: 2011 Week: 0 [ 7.801] (II) RADEON(0): EDID Version: 1.3

[ 7.823] (II) RADEON(0): EDID for output DVI-0 [ 7.823] (II) RADEON(0): Output DisplayPort-0 disconnected [ 7.823] (II) RADEON(0): Output DisplayPort-1 disconnected [ 7.823] (II) RADEON(0): Output HDMI-0 connected [ 7.823] (II) RADEON(0): Output DVI-0 disconnected

the graphic driver knew only HDMI-0 is connected and the others are not connected