Hi Folks, I hope there's someone out there who can help me, 'cos now I've messed up my Linux installation.
I followed the advice above to open a ticket at bugzilla.kernel.org. driver sound/ Alsa. The upstream ticket number is 112721. Advice from them was to upgrade the kernel, as the version in Ubuntu 14.04 was 'way too old'. I didn't even know you could do that, but I found instructions here: https://websetnet.com/install-linux- kernel-45-rc-3-ubuntu-1504-ubuntu-1404/ I followed the 64 bit instructions: the download and unpack were fine, but the update failed. However, it did manage to mess up my PC. I have attached a file containing the all the lines I executed and received on the terminal. First, I would really like to know how to repair my 14.04 installation. Second, does anyone have any ideas on how to safely upgrade the kernel so that (maybe) the missing audio can be fixed. At the moment, it boots up with multiple error messages (kernel panic, not syncing etc. etc.), then switches itself off. If I try powering up again, I get 3 options: Ubuntu Advanced Options for Ubuntu System Setup If I pick Advanced Options... I get offered all the kernel boot options, plus recovery versions of each. NB the kernels include the new 4.5-rc, for which the upgrade failed. At this point, I choose the old kernel (3.13.0-74.118-generic), Recovery mode. Then I get a menu offering cleanup, package repair and all sorts of other stuff. By this point I'm totally out of my depth. What should I do at this point? Is there any way to repair the installation from the original 14.04 CD? All help gratefully received. John. ** Attachment added: "20160222_Upgrade_Attempt.txt" https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1530142/+attachment/4579382/+files/20160222_Upgrade_Attempt.txt -- 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 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/ubuntu/+source/alsa-driver/+bug/1530142/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
