Display wont turn back on after suspend

tomer90 · 10-05-2012, 01:25 PM

Im running BackTrack 5 R3 on my thinkpad T530, I think its built on ubuntu 10.04, anyway when i close the lid of my laptop it goes into suspend mode and when i open it again the laptop turns on ok but the display stays off :/

tomer90 · 10-06-2012, 01:35 PM

No one? Please its really annoying, by the way i'm running BT5 from live USB

TobiSGD · 10-06-2012, 01:57 PM

And exactly that is the problem, I would think. It may be possible that the USB is coming up not fast enough when the machine wakes up, so that the system looses its root file-system and crashes.

tomer90 · 10-06-2012, 04:33 PM

I see, its a USB 3 70mb/s read...
And if it's not a speed problem? By the way I left a terminal open before I closed the lid and then opened it and typed poweroff and it works so the laptop wakes up fine

TobiSGD · 10-06-2012, 04:48 PM

I wasn't talking about the read speed, but the amount of time that is needed for the device to become responsive again.
Anyways, since that works the problem is something different. Have a look if you have the program xbacklight installed. If you have try to launch the command

Code:

xbacklight -set 80

tomer90 · 10-07-2012, 04:59 AM

I don't have it but I installed it and tried the command and it says "no outputs have backlight property" could it be the BackTrack doesn't recognize the screen properly? Because I also get "nouveau unknown i2c port", a couple of them with different ports 48,51,56 and 3 more I think

tomer90 · 10-07-2012, 04:43 PM

Anyone? Any ideas?

TobiSGD · 10-07-2012, 07:35 PM

You could try to install the proprietary Nvidia driver. But before you do that have a look at the power-management logs in /var/log, may be they contain some error messages.