Display backlight won't turn on after screen timeout

[James Gross]

Using nVidia driver 367.44 on Skylake Intel Processors, with 1000 series graphics, the backlight won't turn on after turned off by gnome session idle delay (org.gnome.desktop.session idle-delay). or by `xset dpms force off`

Resume from suspend is unaffected.

This is on a clean install of 16.10 with the 367.44 nVidia driver. This is a regression from the 367.35 driver. 367.48 and 370.28 also exhibit this behavior.

This is confirmed on the following hardware:

Oryx Pro 2 (oryp2) i7-6700HQ with 1070
Serval 10 (serw10) i7-6700 with 1060
Bonobo 11 (bonw11) i7-6700K with dual 1070

Steps to reproduce:

1. Install a fresh image of Yakkety and 367.44 from the graphics driver team's PPA.
2. Log in to Unity shell
3. Lock screen and wait for dimming.
4. Move the mouse to 'resume'
5. The screen will turn on, but the backlight is still off

The current workaround:

1. Hit tty1 (Ctrl+Alt+F1)
2. Hit tty7 (Ctrl+Alt+F7)

This will bring Unity back to life.

ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: nvidia-367 367.44-0ubuntu3
ProcVersionSignature: Ubuntu 4.8.0-19.21-generic 4.8.0-rc8
Uname: Linux 4.8.0-19-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.3-0ubuntu7
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Oct 6 16:17:11 2016
SourcePackage: nvidia-graphics-drivers-367
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[April J (april-system76)]

Tested with nvidia-367.57 on Yakkety, and the issue still occurs.

[Dow Hurst (dow-hurst)]

Tested with nvidia-367.44 on Xenial with Oryx Pro i7-6700HQ, GTX-1060 6GB, and the issue occurs.

[Aaron Dhiman (adhiman)]

Hi, I have the same issue with this setup:

Ubuntu 16.04.1 LTS (64-bit)
3.5 GHz i7-6700HQ (6 MB Cache – 4 Cores – 8 Threads)
6 GB GTX 1060 with 1280 CUDA Cores

+-----------------------------------------------------------------------------+
| NVIDIA-SMI 367.44 Driver Version: 367.44 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 GeForce GTX 1060 Off | 0000:01:00.0 On | N/A |
| N/A 47C P2 26W / N/A | 202MiB / 6063MiB | 0% Default |
+-------------------------------+----------------------+----------------------+

[James Uanhoro (james-uanhoro)]

Same issue here with Oryx Pro 2 (oryp2) i7-6700HQ with 1070.

[Anthony Randazzo (adazz)]

I'm seeing the same issue with a brand new laptop from System76

Ubuntu 16.04.1 LTS (64-bit)
15.6″ Matte 1080p LED-backlit Display
6 GB GTX 1060 with 1280 CUDA Cores
3.5 GHz i7-6700HQ (6 MB Cache – 4 Cores – 8 Threads)
16 GB Dual-channel DDR4 at 2400 MHz (2× 8 GB

[tony (robalik)]

I'm seeing this as well with a brand new Oryx Pro from System76. Ubuntu 16.04. Just arrived last week.

[Hardy Pottinger (hardyoyo)]

This bug also affects me, I am another System 76 Orynx v2 (aka oryp2) user. Another workaround is, in addition to disabling power saving/idle for the screen, install the screensaver packages:

http://askubuntu.com/questions/292995/configure-screensaver-in-ubuntu

As long as you keep the video card warm, you'll not trigger this bug. Sure, your electric bill will suffer, but, who doesn't like bouncing cows? :-)

[troy (tprelog)]

Hello I have new System 76 Oryx Pro 2 (oryp2) with same issue. Im not using Ubuntu but I was asked to still make a post here.

I am seeing the same bug using Arch Linux w/ Plasma 5

Kernel: x86_64 Linux 4.8.4-1-ARCH
NVIDIA Driver Version: 370.28

 DE: KDE5
 WM: KWin
 CPU: Intel Core i7-6700HQ CPU @ 3.5GHz
 GPU: GeForce GTX 1060
 RAM: 16GB

[Doug Rohm (drohm)]

I also have an Oryx Pro 2, using Solus and experiencing same issue.

[Chris Fernandez (cfernandezlinux)]

I also have this issue with Oryx Pro from system76
please fix is annoying!!!

[Illya (illia-shapoval)]

The bug affects me as well, on Oryx Pro 2.

[Apaullo (pnh1997)]

Affects System 76 Oryx Pro 2 with Nvidia GTX 1070, i7-6820HK CPU on Ubuntu 16.04.1 with Nvidia 367.57

[David Salmen (dsalmen686)]

I have an Oryx Pro from system76 - this bug is really painful - please address this bug!

[crisptomatoe (crisptomatoe)]

I am also seeing this with my Oryx Pro 2 - please fix.

[Paweł Bylica (chfast)]

I can also confirm this bug. Moreover, the nouveau driver does not have this bug. Can I help fixing it somehow?

[Paweł Bylica (chfast)]

Fixed in nvidia 375.26.

[Tambellini (william-tambellini)]

confirming this bug on Oryx Pro 17 with nvidia gtx 1060 ubuntu 16.04.
1- Has nvidia 375.26 been validated/approved with ubuntu 16.04 ?
2- Which kernel is compatible with nvidia 375.26 ?

[Paweł Bylica (chfast)]

You can install 375.26 from Nvidia website, but is not available in Ubuntu repositories yet.

[Gary Herron (gherron-digipen)]

As of today, Jan 5, 2017, 375.26 *is* now in the Ubuntu repositories, and it does indeed solve this backlight problem.

[Lee Godfrey (opsearcher)]

Confirm the fix works for Oryx Pro with GTX 1060, 16.10, 4.8.0-32. apt-get dist-upgrade installs nvidia 375.26 driver.

[David Jordan (dmj726)]

Thanks for confirming the fix! Just to clarify, the nvidia 375.26 driver is not in the Ubuntu repositories yet. We packaged it in the System76 ppa so our customers get the fixes in a timely manner. Since Tuesday, running updates should fix this issue for all affected System76 customers.

For people wanting to use the 375.26 driver for non-System76 machines, I recommend using the Graphics Drivers Team ppa.

Thank you all for adding your comments. This really helped in getting it fixed in the nvidia driver.

[Robert Edwards (raedwards)]

This fix is better but still not perfect. Upon waking an Oryx, the screen comes back, but there is an issue where the screen flickers along the x- and y- positions relative to the mouse. Eventually this still requires a restart.

[troy (tprelog)]

I have same issue as Robert stated above ("Upon waking an Oryx, the screen comes back, but there is an issue where the screen flickers along the x- and y- positions relative to the mouse") Also when this happens there are times my mouse cursor will disappear followed shortly after by complete system freeze up. Also I noticed this seems to occur more often than not when the laptop is running on battery. While it does still occur, it is far less frequent while plugged in.

[David Jordan (dmj726)]

Robert and Troy: I believe you are experiencing a different issue. Do you both have an Oryx with a GTX 1060? If so, this is a known issue, which we issued a workaround for a few days ago. Try updating to the latest system76-driver-nvidia. That should at least prevent the need for a restart.