Hi Raymond here the details:
xrandr --verbose Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 32767 x 32767 eDP1 connected primary 1920x1080+0+0 (0x48) normal (normal left inverted right x axis y axis) 345mm x 194mm Identifier: 0x43 Timestamp: 23518 Subpixel: unknown Gamma: 1.0:1.0:1.0 Brightness: 1.0 Clones: CRTC: 0 CRTCs: 0 1 2 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: EDID: 00ffffffffffff0030e4230300000000 00160104952313780a25b5a159599d27 1c505400000001010101010101010101 010101010101e83580a8703816402024 550059c2100000180000000000000000 00000000000000000000000000fe004c 4720446973706c61790a2020000000fe 004c503135365746342d535042310069 BACKLIGHT: 16 range: (0, 100) Backlight: 16 range: (0, 100) scaling mode: Full aspect supported: None, Full, Center, Full aspect Broadcast RGB: Automatic supported: Automatic, Full, Limited 16:235 audio: auto supported: force-dvi, off, auto, on 1920x1080 (0x48) 138.0MHz -HSync -VSync *current +preferred h: width 1920 start 1952 end 1988 total 2088 skew 0 clock 66.1KHz v: height 1080 start 1085 end 1090 total 1102 clock 60.0Hz 1920x1080 (0xab) 138.5MHz +HSync -VSync h: width 1920 start 1968 end 2000 total 2080 skew 0 clock 66.6KHz v: height 1080 start 1083 end 1088 total 1111 clock 59.9Hz 1680x1050 (0xac) 146.2MHz -HSync +VSync h: width 1680 start 1784 end 1960 total 2240 skew 0 clock 65.3KHz v: height 1050 start 1053 end 1059 total 1089 clock 60.0Hz 1680x1050 (0xad) 119.0MHz +HSync -VSync h: width 1680 start 1728 end 1760 total 1840 skew 0 clock 64.7KHz v: height 1050 start 1053 end 1059 total 1080 clock 59.9Hz 1600x1024 (0xae) 103.1MHz +HSync +VSync h: width 1600 start 1600 end 1656 total 1664 skew 0 clock 62.0KHz v: height 1024 start 1024 end 1029 total 1030 clock 60.2Hz 1400x1050 (0xaf) 122.0MHz +HSync +VSync h: width 1400 start 1488 end 1640 total 1880 skew 0 clock 64.9KHz v: height 1050 start 1052 end 1064 total 1082 clock 60.0Hz 1280x1024 (0xb0) 108.0MHz +HSync +VSync h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 64.0KHz v: height 1024 start 1025 end 1028 total 1066 clock 60.0Hz 1440x900 (0xb1) 106.5MHz -HSync +VSync h: width 1440 start 1520 end 1672 total 1904 skew 0 clock 55.9KHz v: height 900 start 903 end 909 total 934 clock 59.9Hz 1280x960 (0xb2) 108.0MHz +HSync +VSync h: width 1280 start 1376 end 1488 total 1800 skew 0 clock 60.0KHz v: height 960 start 961 end 964 total 1000 clock 60.0Hz 1360x768 (0xb3) 84.8MHz -HSync +VSync h: width 1360 start 1432 end 1568 total 1776 skew 0 clock 47.7KHz v: height 768 start 771 end 781 total 798 clock 59.8Hz 1360x768 (0xb4) 72.0MHz +HSync -VSync h: width 1360 start 1408 end 1440 total 1520 skew 0 clock 47.4KHz v: height 768 start 771 end 781 total 790 clock 60.0Hz 1152x864 (0xb5) 81.6MHz -HSync +VSync h: width 1152 start 1216 end 1336 total 1520 skew 0 clock 53.7KHz v: height 864 start 865 end 868 total 895 clock 60.0Hz 1024x768 (0xb6) 65.0MHz -HSync -VSync h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.4KHz v: height 768 start 771 end 777 total 806 clock 60.0Hz 800x600 (0xb7) 40.0MHz +HSync +VSync h: width 800 start 840 end 968 total 1056 skew 0 clock 37.9KHz v: height 600 start 601 end 605 total 628 clock 60.3Hz 800x600 (0xb8) 36.0MHz +HSync +VSync h: width 800 start 824 end 896 total 1024 skew 0 clock 35.2KHz v: height 600 start 601 end 603 total 625 clock 56.2Hz 640x480 (0xb9) 25.2MHz -HSync -VSync h: width 640 start 656 end 752 total 800 skew 0 clock 31.5KHz v: height 480 start 490 end 492 total 525 clock 59.9Hz VGA1 disconnected (normal left inverted right x axis y axis) Identifier: 0x44 Timestamp: 23518 Subpixel: unknown Clones: CRTCs: 0 1 2 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: HDMI1 disconnected (normal left inverted right x axis y axis) Identifier: 0x45 Timestamp: 23518 Subpixel: unknown Clones: CRTCs: 0 1 2 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: Broadcast RGB: Automatic supported: Automatic, Full, Limited 16:235 audio: auto supported: force-dvi, off, auto, on VIRTUAL1 disconnected (normal left inverted right x axis y axis) Identifier: 0x46 Timestamp: 23518 Subpixel: no subpixels Clones: CRTCs: 3 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: alsa-info http://www.alsa- project.org/db/?f=629c47bef132d5885f48680557221637d0aeb9b1 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1256655 Title: [Gazelle Professional, Intel Haswell HDMI, Digital Out, HDMI] Playback problem, built in speakers work but no audio over HDMI Status in System76: In Progress Status in “alsa-driver” package in Ubuntu: Confirmed Bug description: The laptop came with Ubuntu 13.04 installed and when I installed the Intel drivers from 01.org there was audio over the HDMI port. With Ubuntu 13.10 it has since been impossible to get the sound over the HDMI port. When I downgrade to 13.04 with the 01.org drivers it works again. In windows 7 the audio over HDMI works perfectly as well. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: alsa-base 1.0.25+dfsg-0ubuntu4 ProcVersionSignature: Ubuntu 3.11.0-13.20-generic 3.11.6 Uname: Linux 3.11.0-13-generic x86_64 ApportVersion: 2.12.5-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: remco 1361 F.... pulseaudio /dev/snd/controlC1: remco 1361 F.... pulseaudio Date: Sun Dec 1 16:58:25 2013 InstallationDate: Installed on 2013-12-01 (0 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) MarkForUpload: True PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:MID failed Symptom_Card: Built-in Audio - HDA Intel MID Symptom_Jack: Digital Out, HDMI Symptom_Type: Only some of outputs are working Title: [Gazelle Professional, Intel Haswell HDMI, Digital Out, HDMI] Playback problem UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/13/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 4.6.5 dmi.board.asset.tag: Tag 12345 dmi.board.name: Gazelle Professional dmi.board.vendor: System76, Inc. dmi.board.version: gazp9 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: System76, Inc. dmi.chassis.version: gazp9 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd06/13/2013:svnSystem76,Inc.:pnGazelleProfessional:pvrgazp9:rvnSystem76,Inc.:rnGazelleProfessional:rvrgazp9:cvnSystem76,Inc.:ct9:cvrgazp9: dmi.product.name: Gazelle Professional dmi.product.version: gazp9 dmi.sys.vendor: System76, Inc. 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