11-14-2018 05:36 PM - edited 11-14-2018 06:40 PM
Last week's Wednesday I used my Lenovo G40-80 to do my college homework at the afternoon. It went all normally, I turned off the notebook and get to my college.
At night, when I returned, I tried to turn on the notebook and was given the error when the system don't booted and both the led aside the camera and the fan turned on for almost two seconds and then turned off.
After many attempts, and seeing some topics here, I tried to turn on my Lenovo using the recovery button. It worked,the system booted up normally. Problem is that the system gave video, but LCD backlight is off.
I am very anxious about the possibility of being a software problem, giving the fact that the F9 key has a feature similar to the problem i'm suffering (LCD backlight on/off) and also the fact that if I connect my laptop into a TV or another screen via HDMI/Vga cables, video is showed nornally.
I've done a video showing my problem and uploaded it on YouTube, here's the link:
Please, do someone has any answers to this problem? I have urgency to return using my computer, in order to continue to do my homeworks.
Thanks in advance.
11-15-2018 04:44 AM
Please try updating the display driver and the BIOS. You may download the display driver and BIOS update here: https://support.lenovo.com/us/en
Update us how it goes.
11-15-2018 08:11 AM - edited 11-15-2018 08:28 AM
Ok, I've tried updating the bios and video driver by downloading them from Lenovo G40-80 page, bios is updated and ok by now. unfortunately, problem persists. However, the video driver gave me trouble: I downloaded and installed but was gave an error message from Intel saying driver is not validated for my system. problem is the OS is the original, that come in with my notebook (Windows 10 Pro).
11-15-2018 10:57 AM
Just to confirm, is the screen already dimmed whenever you boot the laptop into Windows? if yes, this is a not a software issue but more of a hardware problem with the LCD. You may contact our technical support for repair options.
11-15-2018 12:28 PM
Yes, I've already contacted technical assistance in order to solve this - and another - problems. Unfortunately this entanglement was late and I needed to take my notebook again to my use. However, the technicians ensured me that this might be a software problem.
There's no other solution? I can't afford by now getting far from my computer due to my college homeworks.
11-15-2018 11:43 PM
To verify if this is hardware or software, boot it in BIOS and check if the screen is still dim. If it is, then it is hardware issue. Steps here, https://support.lenovo.com/us/en/solutions/ht500216.