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no, it's not a valid mode, it's not in the chart you linked to for one... the range of the vga option will load vesafb extensions, there's no need to explicitly reference vesafb. personally my options are "vga=791 video=vesa:ywrap,mtrr"
are you gonna stop telling me to do things wrongly? you do not need to convert those modes to Hex, if there is no leading 0x then it is taken as decimal, not hex.
so anyway... you've not said what distro you're using, and it'd also help if you define what the mode currently is.. you say it's 640x480, but is it really? are you not just describing a standard 80x25 character screen, without a framebuffer running at all?
I assume I have a framebuffer running beacuse some applications runs.
Like mame , zgv and such that requires a running framebuffer.( if im not wrong ) and that I selected framebuffer support in the kernel.
When I run Fbresolution it gives me
Otherwise is there other ways I can tell I'm running a framebuffer or not?
And if im not... why isent my framebuffer running?