Acer Swift 3 SF314-57 screen flickering on battery

Batmaci

my Acer Swift 3 SF314-57 started last 2 days this problem. I didnt have before any problem suddenly 2 days a go whenever i use the laptop without charger connected, screen is flickering. I can simply reproduce this way.
- if i am using on charger and disconnect it and continue using on the battery, no problem. It keeps working fine. 
- Then i put on hibernate mode and start from hibernate, it will start flickering and after several times flickering, screen even remains dark. 
- when i connect to the extra monitor, Monitor is displaying but laptop screen remains off or flickers randomly. 
- If i restart the laptop on battery, problem wont go away. But if i connect to the charger and restart the laptop, everything is fine again. 

I have the latest bios update, just did it yesterday but it didnt help. I have removed all the software i have installed within last 2 days. Any idea what could be the problem?

Batmaci

I did battery reset as suggested but it didnt help. none has any idea? 

Batmaci

It looks like that i cannot edit my post. I wrote actually wrong my problem is not flickering but blinking. 2 different things. my screen goes on and off rapidly and goes off after sometime till i restart it. Problem seems to be with this driver of Intel Display Adaptor. Below version causes this issue. I could hardly uninstall the driver while it is blinking and immediately blinking was stopped. So what to do know? 

VGA Driver

Date:

2020/08/07

Version:

27.20.100.8280

Vendor:

Intel

Batmaci

This is 100% problem with this driver version and i cannot believe Acer is giving it as latest update. Is there anyone from Acer here, i want to ask why? why are giving a buggy driver to us? When I go to Device Manager and search for Update of the driver, it only finds this one but Intel has 4 more updates after this version. you can see it here. 
https://downloadcenter.intel.com/download/29808/Intel-Graphics-Windows-10-DCH-Drivers?product=197599

if you check the release notes of Version: 27.20.100.8336 which is 1 version after this buggy version, you can see the exact bug was mentioned.

KEY ISSUES FIXED:

• On PSR2 displays, internal embedded panel when plugged in may shift after resuming from lid close do nothing on 10th generation Intel Core processors with UHD Graphics.
  
  

I downloaded the latest version and tried to install and it showed that it is intalled and restart your PC, i restarted it. I tested again coming from the Hibernate and problem doesn't occur any longer. But then i found something interesting, I checked the version of the driver  26.20.100.7372 it is even older version but still working. When I check with intel asistant, it tells me that "Your Intel® drivers and software are up to date.". how this is possible I dont really understand it? I think that next windows update will bring this buggy driver version again   Acer needs to do something with Intel here. 

MAD00

Any solution yet? I'm facing the same issue. I just connected a external monitor and it's working fine. Then I have uninstalled Intel UHD drivers. Then the issue goes away. But the thing is that Intel driver automatically install again.

Batmaci

You should download the very latest driver from intel.com as i edplained above.