###############################################################################
# Function  : guess_video_memory
# Parameters: none
# A sloppy function to attempt to retrieve video memory.  This is known to be
# incorrect in some cases, although the value returned should never be higher
# than actual. If you know a better way, please email it to me!
###############################################################################
guess_video_memory() {
    test -x /usr/sbin/lspci || return 1
    slot="$(/usr/sbin/lspci | grep "VGA compatible controller:" | awk '{print $1}')"
    test -n "${slot}" || return 1
    let videomem="$(/usr/sbin/lspci -vs ${slot} |
        egrep ' prefetchable\) \[size=[0-9]+M' |
        perl -pe 's/.*size=([0-9]+)M.*/$1/g')" || return 1
    return 0
}

for this example the output of your video card is the same as the one ‘m using, and I cannot find the correct intel video driver (the one currently install keeps crashing every so often) which video driver did you install –for Intel Corporation 82845G/GL?
I’m using arch linux

Thanks.

lspci -v | grep VGA -A12

To focus the -v option right to the VGA adapter

Do use superuser. #sudo lspci -v -s 00:02.0

When I follow the above instructions, I get a much lower amount of memory than I know what is on this particular video card. The need for this is when I don’t know how much memory; on a laptop for instance.

@Fox
I don’t know why exactly the capabilities require root privs but that seems to be the case. Try:

sudo lspci -v -s 00:02.0