11-10-2016 08:36 PM
Hey folks, hoping I'm just missing something obvious here and it's not my device:
Something that has started to happen frequently on my brand new T460p is driving me nuts. My display (FHD non-touch) turns off, per the power settings, after 5 minutes of inactivity while on battery power. I prefer to keep this setting active as the display will eat up battery pretty quickly. When I click around to wake the display it will come back on but the cursor will not be visible. I can right click, the screen goes black, left click, the screen comes back. It will flicker whenever something is done that would change what's on the screen. I have to force the computer to sleep with the power button then bring it back awake using the power button and everything seems to be fine after that.
There is no reason why a fairly expensive laptop that is brand new should be having trouble turning it's display back on. I haven't dropped the laptop, I haven't handled it roughly. I've had it for about 2.5 weeks now and love everything about it, but I really need to get this display issue resolved. I've checked my drivers and the Lenovo tool says my system is up to date, and I keep the dGPU up to date as well.
Could it be a problem with the system deconflicting which GPU drives the display? Has anyone else had this problem with their T460-series laptop? I feel like this must be a hardware/software interface issue that can be resolved somehow. Any help or feedback is greatly appreciated.
11-10-2016 08:46 PM
Seems most likely a drive issue. u can either use lenovo support to update or iobit driver booster. if not fixed try contacting lenovo and see if they can help. You could also uninstall the driver by device manager, which would make the device update by force
11-10-2016 11:44 PM
Not quite sure what your dGPU is, but usually what happens is that your dGPU will be the one choosing between iGPU or dGPU. At least for most of my laptops, that was the case. Go to support.lenovo.com and do a diagnostic test, see if anything happens. Also try putting the laptop on either performance mode or saving mode, to see if using only one gpu will fix the problem.
For the drivers, update both, and if you go to the gpu settings, you can choose how you'd like to be set up, changing, or just one gpu. I personally would prefare the iGPU most of the times, as I use a desktop if in need of quality work.
Driver booster is honestly the best method to update your gpu, usually works best! (I wouldn't pay for it, as it's not more useful, the free version will do the work)
11-13-2016 06:29 AM
11-13-2016 07:27 AM
So, an update, but not quite a solution: For whatever reason when I attempt to wake the display by moving the cursor with the trackpad (don't use the trackpoint, so I'm not sure if it applies there, too), it will have this error. As a little gee-whiz I decided to try to ONLY wake the display by pressing a key. I.e. mouse click or keyboard strike. Interestingly enough this seems to be an adequate work-around for me. Or I guess I should say my problem hasn't occured again since I started doing this. Time will tell if it's dumb luck or actually the trackpad.
In a perfect world (or at least a quality-controlled/user tested one...) this would not be an issue. My guess is the trackpad might turn off like a normal mouse would, and then in conjunction with the trackpad being used, the cursor moving, and the display having to wake something just kind of gets confused. Again, it could just be dumb luck and my problem will crop up again soon.
So to be more specific about what I did: I made sure that my computer sleep timer and my display turn-off timer were adequately spaced apart. My display turns off after 5 mins of inactivity on battery. Computer sleeps after 10 minutes of inactivity on battery. Maybe make sure you have some decent separation between these two timers first as a display turn-off and simultaneous system sleep could feasibly cause issues. In conjunction with that whenever I want to wake my display I click the left click button only. I don't touch the trackpad or trackpoint, just left-click.
Try this out and let me know if it works for you too. It'd be great to pinpoint this problem and have more than just ONE anecdote. I'll post another update if my issue returns.
11-13-2016 08:19 AM
11-13-2016 11:50 AM
I don't have the issue after system sleep either, just with the display sleep. Hopefully what I suggested helps out. I'm not really sure what it might be otherwise. Please post if you come up with something else!
11-14-2016 07:57 AM
11-14-2016 05:49 PM
Still no issues when using a mouse click to wake, though? Really strange... Maybe it's something with how the cursor is animated. Or maybe it has something to do with something on the display changing before the display is awake. It'd be nice to have confirmation from a couple other people, but at least between us we can narrow it down to the cursor moving to wake the display.
It'd be nice to have a solution instead of just a workaround, too. . .