Hi Folks, I've solved the problem.
Luckily, before the kernel upgrade wrecked my machine, I'd backed up the /home directories. After a lot of grief, I managed to install 15.10 from a flash drive (initially, the UEFI BIOS wouldn't let me boot from the CD or the flash drive). Changing the kernel from 3.13.74 to 4.2.0 seems to have nailed the problem. I now have sound and HDMI output. Hope someone will close this bug report, as it doesn't seem to be an option for me.. Thanks for all the help from you guys. John M. -- 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/1530142 Title: [Inspiron 5559, Realtek ALC255, Speaker, Internal] No sound at all playback write error (DMA or IRQ trouble?) Status in ALSA driver: Unknown Status in alsa-driver package in Ubuntu: Incomplete Bug description: No sound, either on headphones or internal speakers. Have been all over forums, tried every fix I can find. The installation is new, and it's on a new Dell 5559. Sound is not muted, and I believe the settings are correct, but it's hard to be sure, as each answer I find seems to have slightly differing advice, albeit a lot in common. Would be really helpful if your best and most complete FAQ answers were locked in one place, sorted by Ubuntu release: otherwise there's no way to tell which helpful suggestions/solutions are really correct. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: alsa-base 1.0.25+dfsg-0ubuntu4 ProcVersionSignature: Ubuntu 3.13.0-74.118-generic 3.13.11-ckt30 Uname: Linux 3.13.0-74-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.19 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: john 2107 F.... pulseaudio CurrentDesktop: Unity Date: Wed Dec 30 14:25:38 2015 EcryptfsInUse: Yes InstallationDate: Installed on 2015-12-24 (6 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed Symptom_AlsaPlaybackTestStderr: W r i t e e r r o r : - 5 , I n p u t / o u t p u t e r r o r x r u n _ r e c o v e r y f a i l e d : - 5 , I n p u t / o u t p u t e r r o r T r a n s f e r f a i l e d : I n p u t / o u t p u t e r r o r Symptom_Card: Built-in Audio - HDA Intel PCH Symptom_DevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: john 2107 F.... pulseaudio Symptom_Jack: Speaker, Internal Symptom_Type: No sound at all Title: [Inspiron 5559, Realtek ALC255, Speaker, Internal] No sound at all UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/16/2015 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.0.6 dmi.board.name: 0664DJ dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.0.6:bd09/16/2015:svnDellInc.:pnInspiron5559:pvr:rvnDellInc.:rn0664DJ:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: Inspiron 5559 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/alsa-driver/+bug/1530142/+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
