Hi,
I'm Mohammed Shuaib, an Independent Advisor & I understand from the description that after returning from sleep mode your computer shows a blank white screen so I suggest you follow the instructions to resolve your issue.
Fix #1
Step 1:
Go to Search box next to Windows icon and type CMD
Step 2:
Right-click to open Command Prompt and select Run As Administrator
Step 3:
Type msdt.exe -id DeviceDiagnostic then press Enter
Fix #2
Step 1:
Go to search box next to Windows icon and type Edit Power Plan
Step 2:
Under Edit Power Plan settings click on Change advanced power settings
Step 3:
Under Advanced Settings expand Hard disk & then expand Turn off hard disk after
Step 4 :
Change the value for On Battery 0 (Zero Minutes)
Step 5:
Change the value for Plugged in 0 (Zero Minutes)
Step 6:
Then expand Sleep & then expand Allow hybrid sleep
Step 7:
Change the On Battery settings to On
Step 8:
Change the On Plugged In settings to On
Step 9:
Click Apply and then press OK to close the Advanced Setting
Regards
Shuaib
Independent Advisor