no display in CSM Boot on toshiba Laptop

[nilkanth50]

I have Toshiba Satellite P55T-B5360 Laptop and the CPU integrated is i7 4th generation 2.6 Ghz motherboard. Now the Problem is when I am trying to boot my laptop by CSM boot option, NO Display is coming on the Screen and I choose UEFI boot option it show display on screen. I am unable to find about on board graphic cards details in BIOS

 

[Prostar Computer]

Could be a bug. Do you have the latest BIOS version flashed?

https://support.toshiba.com/support/modelHome?freeText=1200009106&osId=26

 

[nilkanth50]

the Bios version 1.20 is the latest bios

 

[nilkanth50]

sorry version 1.50