Ubuntu Black Screen on Resume-After-Lid-Close

Question

I've been struggling with this one for a while. I have my ASUS K55A Laptop set to "no hibernate to disk" only "suspend to RAM". However, after I close the laptop lid, I still get a black screen. The weird thing is sometimes, after a hard reboot, on the first resume-after-lid-close it DOES resume, however on the second resume-after-lid-close I get a black screen. Also, there are times when I have a YouTube movie playing, and on a resume-after-lid-close which gives me a black screen I can hear the YouTube video playing ("behind" the black screen).

Asus K55A Laptop Ubuntu 14.04.2 LTS Gnome

.---------------.

tom@Toms-Laptop-K55A:~$ free -m
             total       used       free     shared    buffers     cached
Mem:          3839       3733        105        138        170        913
-/+ buffers/cache:       2649       1189
Swap:         3909          0       3909  

.---------------.

When did CTRL + ALT + F1 I got a login prompt. I entered username and password, and then received the appropriate user prompt. Then I did CTRL + ALT + F7 and was presented with the Black Screen.

It's a Black Screen with a Glow, and if I press Fn-F7 (screen off) the glow shuts off. This is the same as when I Reboot and Login, I then see that glowing-black-screen, and then the purplish Gnome Desktop appears.

Since it's a glowing-black-screen that tells me the screen is not off, it is on and "showing me" a black or blank image. .---------------.

Graphics Card lspci | http VGA VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) .---------------.

• tom@Toms-Laptop-K55A:~$ /usr/lib/nux/unity_support_test --print
  OpenGL vendor string: Intel Open Source Technology Center
  OpenGL renderer string: Mesa DRI Intel(R) Ivybridge Mobile
  OpenGL version string: 3.0 Mesa 10.1.3
  Not software rendered: yes
  Not blacklisted: yes
  GLX fbconfig: yes
  GLX texture from pixmap: yes
  GL npot or rect textures: yes
  GL vertex program: yes
  GL fragment program: yes
  GL vertex buffer object: yes
  GL framebuffer object: yes
  GL version is 1.4+: yes
  Unity 3D supported: yes
  .---------------.

tom@Toms-Laptop-K55A:~$ sudo lshw -C video
[sudo] password for tom:
*-display
description: VGA compatible controller
product: 3rd Gen Core processor Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 09
width: 64 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:47 memory:f7800000-f7bfffff memory:e0000000-efffffff ioport:f000(size=64)
.---------------.

X.org log file pasted here
http://pastebin.com/Yze9P1Rt
.---------------.

pm-suspend.log. pasted here http://pastebin.com/w20SZ3N2
.---------------.

These links seem like they would be helpful, but they're a bit beyond my technical ability.
https:// 01.org/linuxgraphics/documentation/development/how-debug-suspend-resume-issues
https:// www.kernel.org/doc/Documentation/power/basic-pm-debugging.txt .---------------.

Is it significant that it's a Black Screen with a Glow, and if I press Fn-F7 (screen off) the glow shuts off? .---------------.

Pastebin Diagnostic Files:

1. X.org log file pasted here http://pastebin.com/Yze9P1Rt

2. pm-suspend.log. pasted here http://pastebin.com/w20SZ3N2

3. Output of: sudo systool -m i915 -av http://pastebin.com/X3YKB7zW y .---------------.

Answer 1

In my experience, Ubuntu's support for suspend/sleep/other low-power modes is rather hit-or-miss. When I first installed Ubuntu, my custom desktop would suspend just fine, but it wouldn't come out of it to a functional desktop. Some time after rebuilding my system with new hardware, it started working. If I recall correctly, Ubuntu 14.04 is what made it so my computer would suspend and resume correctly. However, on my work computer, an HP Compaq something-or-other also running Ubuntu 14.04, I haven't had any luck with suspend.

Basically, in my experience, Ubuntu sometimes has trouble correctly interfacing with a computer's hardware when it comes to sleeping and resuming. It is completely possible that there is a way to fix such compatibility issues, but I don't know enough to generate a solution, and I may not know enough to comfortably implement such a solution. Unfortunately, that's the best answer I can give, but it's totally possible that some Linux guru may see your problem and come up with a solution.