Ubuntu 16.04 blank screen after wakeup from sleep

[don bright]

Per Christopher M. Penalver (penalvch) advice on bug #1574125 i am submitting this system information and bug report.

This problem only began occuring in late September 2016, before that the laptop never had a problem waking up from suspend.

Thanks.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-38-generic 4.4.0-38.57
ProcVersionSignature: Ubuntu 4.4.0-38.57-generic 4.4.19
Uname: Linux 4.4.0-38-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: don 2151 F.... pulseaudio
CurrentDesktop: Unity
Date: Wed Sep 28 19:19:42 2016
HibernationDevice: RESUME=UUID=762383d3-3301-4199-81e2-16a6bc0315ed
InstallationDate: Installed on 2016-03-13 (199 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 003: ID 05c8:0382 Cheng Uei Precision Industry Co., Ltd (Foxlink)
 Bus 001 Device 002: ID 0bda:b006 Realtek Semiconductor Corp.
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: HP HP Notebook
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-38-generic root=UUID=0972ff60-abb5-4bdd-8831-7c60de7271e0 ro quiet splash nomodeset vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.4.0-38-generic N/A
 linux-backports-modules-4.4.0-38-generic N/A
 linux-firmware 1.157.3
SourcePackage: linux
UpgradeStatus: Upgraded to xenial on 2016-04-22 (159 days ago)
dmi.bios.date: 09/11/2015
dmi.bios.vendor: Insyde
dmi.bios.version: F.1A
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 80C1
dmi.board.vendor: HP
dmi.board.version: 96.39
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsyde:bvrF.1A:bd09/11/2015:svnHP:pnHPNotebook:pvrType1ProductConfigId:rvnHP:rn80C1:rvr96.39:cvnHP:ct10:cvrChassisVersion:
dmi.product.name: HP Notebook
dmi.product.version: Type1ProductConfigId
dmi.sys.vendor: HP

[Brad Figg (brad-figg)]

This change was made by a bot.

[don bright (hmbright)]

I was able to fix this by editing my grub settings.

http://askubuntu.com/questions/162409/brightness-not-working-on-an-hp-pavilion-dv6-with-a-ati-radeon-hd6770m

The file i edit is

 /etc/default/grub

Before fix (when it didnt work)

GRUB_CMLINE_LINUX_DEFAULT="quiet splash nomodeset"

The reason I had added nomodeset was to get my virtual consoles to show up when i hit ctrl alt f3

After fix - (suspend works properly again)

GRUB_CMDLINE_LINUX_DEFAULT="acpi_backlight=vendor"

[bcag2 (bcag2)]

Same problem with my xenial 16.04 on Dell Optiplex 7010
(4.4.0-59-generic #80-Ubuntu SMP Fri Jan 6 17:47:47 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
, Processor: Intel® Pentium(R) CPU G2030 @ 3.00GHz × 2, graphic board: Intel® Ivybridge Desktop, dual screens)

Yesterday evening, before left my office, I hibernated because I was a lot of opened web pages in firefox, severals terminals with source codes in vim, a windows7 VM under virtualbox for my dev test…
This morning, in my terminals, it was blank (quite full black) except command I write. Inside Menus, it was blank too. I launched remmina and icons was ok but all texts (name, server…) was blank.
I rebooted.