rhgb resolution

[yordy]

how can i change/set screen resolution for red hat graphical boot? i have a compaq nx7400, 15.4 widescreen and boot progress screen is showing with a resoution not suported by my monitor, i can't see the boot progress bar, only can see a very small part of graphical boot. afther login i can't see the gnome splash screen, black screen appear until nautilus desktop is up.

how can i fix it?




       
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