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:
description: VGA compatible controller
product: 3rd Gen Core processor Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
width: 64 bits
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
pm-suspend.log. pasted here
These links seem like they would be helpful, but they're a bit beyond my technical ability.
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: