kernel-packages team mailing list archive

[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1524122

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1524122

Title:
   XPS 15 (9550) Won't boot with 4.4

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Neither 4.4rc3 nor 4.3rc4 will boot on my Dell XPS 15 (9550).  4.3
  boots fine.

  The boot process halts with "ALERT! /dev/disk/by-uuid/<uuid> does not
  exist", although the UUID does exist, and other kernels boot fine.

  I'm attaching a screenshot of the console boot log.  I apologize that
  it is hard to read, because my screen is 3840x2160 and each line is
  less that 2mm high.

  Here's my grub stanza:

                  load_video
                  gfxmode $linux_gfx_mode
                  insmod gzio
                  if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
                  insmod part_gpt
                  insmod ext2
                  if [ x$feature_platform_search_hint = xy ]; then
                    search --no-floppy --fs-uuid --set=root  7e2ed448-28a7-465e-a5b0-58db19b2711a
                  else
                    search --no-floppy --fs-uuid --set=root 7e2ed448-28a7-465e-a5b0-58db19b2711a
                  fi
                  echo    'Loading Linux 4.4.0-040400rc4-generic ...'
                  linux   /boot/vmlinuz-4.4.0-040400rc4-generic root=UUID=7e2ed448-28a7-465e-a5b0-58db19b2711a ro  quiet splash i915.preliminary_hw_support=1 i915.enable_ips=0 $vt_handoff
                  echo    'Loading initial ramdisk ...'
                  initrd  /boot/initrd.img-4.4.0-040400rc4-generic

  Possibly related is the following warning when i update-initramfs:

  $ sudo update-initramfs -u
  update-initramfs: Generating /boot/initrd.img-4.4.0-040400rc4-generic
  W: Possible missing firmware /lib/firmware/i915/skl_guc_ver4.bin for module i915

  I have also reported this bug upstream:
  https://bugzilla.kernel.org/show_bug.cgi?id=108981

  Please let me know what other info would be helpful.  Thanks!

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1524122/+subscriptions