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 Ubuntu Bugs, which is subscribed to 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?) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1530142/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
