Public bug reported:

I have been getting drm errors since updating to 16.10 causing slow boot
times. Ex:


  3.830465] jhm-Inspiron-1520 kernel: input: SynPS/2 Synaptics TouchPad as 
/devices/platform/i8042/serio1/input/input5

[   13.792249] jhm-Inspiron-1520 kernel:
[drm:drm_atomic_helper_commit_cleanup_done [drm_kms_helper]] *ERROR*
[CRTC:26:pipe A] flip_done timed out


There is ten second gap in the above adjacent lines. I have a few of these in 
the journal log.
These errors also cause Xorg to stall during mode setting also, as seen in the 
adjacent Xorg.0.log file.

[    55.988] (II) modeset(0): Output VGA-1 has no monitor section
[    66.615] (II) modeset(0): Output SVIDEO-1 has no monitor section

Using the Ubuntu test kernels, the best result I have gotten is from
kernel 4.5.6. At 4.6.0 the wheels start to come off the wagon.  At 4.9.0
rc1 the boot stopped at the busybox initrd shell.

4.8.0 fails decompressing the hibernate image as well.

ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: linux-image-4.8.0-26-generic 4.8.0-26.28
ProcVersionSignature: Ubuntu 4.8.0-26.28-generic 4.8.0
Uname: Linux 4.8.0-26-generic i686
ApportVersion: 2.20.3-0ubuntu8
Architecture: i386
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  jhm        1262 F.... pulseaudio
CurrentDesktop: XFCE
Date: Thu Oct 27 17:02:19 2016
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=bd7562ce-d720-4e95-995e-48f0ec1a77aa
InstallationDate: Installed on 2016-10-12 (15 days ago)
InstallationMedia: Xubuntu 16.04 LTS "Xenial Xerus" - Release i386 (20160420.1)
MachineType: Dell Inc. Inspiron 1520
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-26-generic 
root=UUID=5dc9cf92-93d8-4e84-826d-6b4d5f6e1c0d ro plymouth:debug=1 
vesafb.invalid=1
RelatedPackageVersions:
 linux-restricted-modules-4.8.0-26-generic N/A
 linux-backports-modules-4.8.0-26-generic  N/A
 linux-firmware                            1.161
RfKill:
 0: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
SourcePackage: linux
UpgradeStatus: Upgraded to yakkety on 2016-10-15 (12 days ago)
dmi.bios.date: 02/03/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A07
dmi.board.name: 0KY767
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: 
dmi:bvnDellInc.:bvrA07:bd02/03/2008:svnDellInc.:pnInspiron1520:pvr:rvnDellInc.:rn0KY767:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Inspiron 1520
dmi.sys.vendor: Dell Inc.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 yakkety

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https://bugs.launchpad.net/bugs/1637347

Title:
  Xubuntu 16.10: drm errors causing slow boot

Status in linux package in Ubuntu:
  New

Bug description:
  I have been getting drm errors since updating to 16.10 causing slow
  boot times. Ex:

  
    3.830465] jhm-Inspiron-1520 kernel: input: SynPS/2 Synaptics TouchPad as 
/devices/platform/i8042/serio1/input/input5

  [   13.792249] jhm-Inspiron-1520 kernel:
  [drm:drm_atomic_helper_commit_cleanup_done [drm_kms_helper]] *ERROR*
  [CRTC:26:pipe A] flip_done timed out

  
  There is ten second gap in the above adjacent lines. I have a few of these in 
the journal log.
  These errors also cause Xorg to stall during mode setting also, as seen in 
the adjacent Xorg.0.log file.

  [    55.988] (II) modeset(0): Output VGA-1 has no monitor section
  [    66.615] (II) modeset(0): Output SVIDEO-1 has no monitor section

  Using the Ubuntu test kernels, the best result I have gotten is from
  kernel 4.5.6. At 4.6.0 the wheels start to come off the wagon.  At
  4.9.0 rc1 the boot stopped at the busybox initrd shell.

  4.8.0 fails decompressing the hibernate image as well.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.10
  Package: linux-image-4.8.0-26-generic 4.8.0-26.28
  ProcVersionSignature: Ubuntu 4.8.0-26.28-generic 4.8.0
  Uname: Linux 4.8.0-26-generic i686
  ApportVersion: 2.20.3-0ubuntu8
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  jhm        1262 F.... pulseaudio
  CurrentDesktop: XFCE
  Date: Thu Oct 27 17:02:19 2016
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=bd7562ce-d720-4e95-995e-48f0ec1a77aa
  InstallationDate: Installed on 2016-10-12 (15 days ago)
  InstallationMedia: Xubuntu 16.04 LTS "Xenial Xerus" - Release i386 
(20160420.1)
  MachineType: Dell Inc. Inspiron 1520
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-26-generic 
root=UUID=5dc9cf92-93d8-4e84-826d-6b4d5f6e1c0d ro plymouth:debug=1 
vesafb.invalid=1
  RelatedPackageVersions:
   linux-restricted-modules-4.8.0-26-generic N/A
   linux-backports-modules-4.8.0-26-generic  N/A
   linux-firmware                            1.161
  RfKill:
   0: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: Upgraded to yakkety on 2016-10-15 (12 days ago)
  dmi.bios.date: 02/03/2008
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A07
  dmi.board.name: 0KY767
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvrA07:bd02/03/2008:svnDellInc.:pnInspiron1520:pvr:rvnDellInc.:rn0KY767:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: Inspiron 1520
  dmi.sys.vendor: Dell Inc.

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