can you use hda-analyzer to increase the volume sliders at node 0x02 ? maximum should be 0x57 but your values only at 0x24
Control: name="PCM Playback Volume", index=0, device=0 ControlAmp: chs=3, dir=Out, idx=0, ofs=0 Device: name="ALC280 Analog", type="Audio", device=0 Amp-Out caps: ofs=0x57, nsteps=0x57, stepsize=0x02, mute=0 Amp-Out vals: [0x24 0x24] Simple mixer control 'Master',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 87 Mono: Playback 36 [41%] [-38.25dB] [on] Simple mixer control 'Headphone',0 Capabilities: pvolume pswitch Playback channels: Front Left - Front Right Limits: Playback 0 - 87 Mono: Front Left: Playback 87 [100%] [0.00dB] [on] Front Right: Playback 87 [100%] [0.00dB] [on] Simple mixer control 'Speaker',0 Capabilities: pswitch Playback channels: Front Left - Front Right Mono: Front Left: Playback [on] Front Right: Playback [on] Simple mixer control 'PCM',0 Capabilities: pvolume pswitch Playback channels: Front Left - Front Right Limits: Playback 0 - 87 Mono: Front Left: Playback 87 [100%] [0.00dB] [on] Front Right: Playback 87 [100%] [0.00dB] [on] -- 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/1425221 Title: [OptiPlex 9020, Realtek ALC280, Green Line Out, Rear] tinny sound Status in alsa-driver package in Ubuntu: New Bug description: Sound equalization is normal when using jack in front of computer, but is "tinny" (i.e., low/nonexistent bass and midtones) when using rear output jack with simple two channel headphones. Jack sense is working correctly because the internal speaker cuts out when a cable is plugged into the rear jack (or front jack, for that matter). Note Dell's website says this computer has a Realtek ALC3220, as opposed to the ALC280 which is detected by linux. This is a clean install of 14.04, so I unfortunately I can't boot into Windows to observe its behavior. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: alsa-base 1.0.25+dfsg-0ubuntu4 ProcVersionSignature: Ubuntu 3.13.0-45.74-generic 3.13.11-ckt13 Uname: Linux 3.13.0-45-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.7 Architecture: amd64 CurrentDesktop: Unity Date: Tue Feb 24 12:31:49 2015 InstallationDate: Installed on 2015-01-30 (25 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful Symptom_Card: Built-in Audio - HDA Intel PCH Symptom_Jack: Green Line Out, Rear Symptom_PulsePlaybackTest: PulseAudio playback test successful Symptom_Type: High background noise, or volume is too low Title: [OptiPlex 9020, Realtek ALC280, Green Line Out, Rear] Background noise or low volume UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/20/2014 dmi.bios.vendor: Dell Inc. dmi.bios.version: A09 dmi.board.name: 06X1TJ dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 6 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA09:bd11/20/2014:svnDellInc.:pnOptiPlex9020:pvr01:rvnDellInc.:rn06X1TJ:rvrA00:cvnDellInc.:ct6:cvr: dmi.product.name: OptiPlex 9020 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1425221/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp