Black screen when booting without nomodeset

[daramarak]

It happens intermittently. Some times after a kernel upgrade it boots fine, but immediately after the screensaver turns on the screen gets black with the backlight on. After a good boot it returns to booting to a black screen.

The system is working while the black screen is on. I am able to log in and shutdown via console (blindly)

I have tried to write dmesg to a file while it is in this mode and I got this:

[ 1835.947242] cfg80211: (5815000 KHz - 5850000 KHz @ 35000 KHz), (N/A, 3301 mBm), (0 s)
[ 1835.947243] cfg80211: (17100000 KHz - 17300000 KHz @ 200000 KHz), (N/A, 2000 mBm), (N/A)
[ 1835.947244] cfg80211: (57000000 KHz - 66000000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
[ 1835.952825] wlp3s0: Limiting TX power to 18 dBm as advertised by 04:da:d2:fd:7d:0e
[ 1998.759411] [drm:intel_dp_link_training_clock_recovery [i915_bpo]] *ERROR* too many full retries, give up
[ 1998.770230] [drm:intel_dp_link_training_clock_recovery [i915_bpo]] *ERROR* too many full retries, give up
[ 1998.781095] [drm:intel_dp_link_training_clock_recovery [i915_bpo]] *ERROR* too many full retries, give up
[ 1998.791896] [drm:intel_dp_link_training_clock_recovery [i915_bpo]] *ERROR* too many full retries, give up
[ 1998.802880] [drm:intel_dp_link_training_clock_recovery [i915_bpo]] *ERROR* too many full retries, give up
[ 1998.813780] [drm:intel_dp_link_training_clock_recovery [i915_bpo]] *ERROR* too many full retries, give up
[ 1998.824569] [drm:intel_dp_link_training_clock_recovery [i915_bpo]] *ERROR* too many full retries, give up
[ 1998.824747] [drm:intel_dp_start_link_train [i915_bpo]] *ERROR* failed to train DP, aborting

This was after a boot failed.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xorg (not installed)
ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
Uname: Linux 4.4.0-31-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
.proc.driver.nvidia.gpus.0000.01.00.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0000:01:00.0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module 367.35 Mon Jul 11 23:14:21 PDT 2016
 GCC version: gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.1)
.tmp.unity_support_test.1:

ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Wed Jul 20 11:41:21 2016
DistUpgraded: Fresh install
DistroCodename: xenial
DistroVariant: ubuntu
DkmsStatus:
 bbswitch, 0.8, 4.4.0-28-generic, x86_64: installed
 bbswitch, 0.8, 4.4.0-31-generic, x86_64: installed
 nvidia-367, 367.35, 4.4.0-31-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard:
 Intel Corporation Skylake Integrated Graphics [8086:191b] (rev 06) (prog-if 00 [VGA controller])
   Subsystem: CLEVO/KAPOK Computer Skylake Integrated Graphics [1558:1501]
 NVIDIA Corporation Device [10de:1667] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: CLEVO/KAPOK Computer Device [1558:1503]
InstallationDate: Installed on 2016-07-09 (10 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 004: ID 1c7a:0603 LighTuning Technology Inc.
 Bus 001 Device 003: ID 5986:066d Acer, Inc
 Bus 001 Device 002: ID 0cf3:e300 Atheros Communications, Inc.
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Notebook N15_N17RF1
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-31-generic.efi.signed root=UUID=32802ab4-59f5-434e-a6a4-8ee988bf7e24 ro nomodeset quiet splash vt.handoff=7
Renderer: Software
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/01/2016
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1.05.02
dmi.board.asset.tag: Tag 12345
dmi.board.name: N15_N17RF1
dmi.board.vendor: Notebook
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Notebook
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.05.02:bd04/01/2016:svnNotebook:pnN15_N17RF1:pvrNotApplicable:rvnNotebook:rnN15_N17RF1:rvrNotApplicable:cvnNotebook:ct10:cvrN/A:
dmi.product.name: N15_N17RF1
dmi.product.version: Not Applicable
dmi.sys.vendor: Notebook
version.compiz: compiz 1:0.9.12.2+16.04.20160714-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.67-1ubuntu0.16.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2
version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2.2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2
xserver.bootTime: Wed Jul 20 11:23:21 2016
xserver.configfile: default
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:

xserver.version: 2:1.18.3-1ubuntu2.2

[Paul White (paulw2u)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. We are sorry that we do not always have the capacity to review all reported bugs in a timely manner.

Ubuntu 16.04 (xenial) reached end-of-standard-support on April 29, 2021.

I'm setting the status of this bug to 'Incomplete' as it's not seen any activity for some time. If this is still an issue when using a currently maintained release of Ubuntu then please let us know which one(s) otherwise this bug report can be left to expire in approximately 60 days time.

[Launchpad Janitor (janitor)]

[Expired for Ubuntu because there has been no activity for 60 days.]