Problem With Retropie when i fist turn on and fix it after i restart the sistem

[Cucapu]

Hello Guys and sorry for disturb .
When i fist plug in my Retropie my monitor resolution is verry low . After i restart the sistem my resolution is getting normal .
I have an LG flatron e2240s Monitor with a Vga adaptor !
I make some research and nothing works .

[mitu]

Try forcing the resolution by explicitely adding it to /boot/config.txt (see more details at https://www.raspberrypi.org/documentation/configuration/config-txt/video.md).
Add to /boot/config.txt:

hdmi_group = 2 
hdmi_mode = 82

Optionally, if that doesn't work, try configuring the HDMI port to ignore the EDID info sent by display with:

hdmi_ignore_edid = 0xa5000080

[Cucapu]

@mitu its working . I modify only the mode and group as you said . Thanks alot mate , all good !