vga=792 leads to black screen
Thomas Cameron
thomas.cameron at camerontech.com
Thu Mar 1 14:47:19 UTC 2007
P Jones wrote:
> On 2/28/07, Thomas Cameron <thomas.cameron at camerontech.com> wrote:
>> I have added vga=792 to the kernel line in grub.conf for several years.
>> I've found that doing this with FC6 leads to a black screen, no little
>> penguins at the top or anything. I see the drive spin, and the system
>> boots up fine, but the console is blank.
>>
>> I've experienced it with 3 different NVidia and 1 ATI cards.
>>
>> Anyone know why?
>
> Thomas;
>
> I don't know why, but you could try these other values to see what
> works (looks like vga=773 would give you the same resolution but fewer
> colors):
>
> + | 640x480 800x600 1024x768 1280x1024
> +---------+----------------------------------------------------------------------------------
>
> +256 | 769 771 773 775
> +32k | 784 787 790 793
> +64k | 785 788 791 794
> +16M | 786 789 792 795
>
I've actually tried all the way down to 769 with the same results. It's
doing it on both FC6 and RHEL5. It worked fine on the same machines
with FC5 and RHEL 4.
Very weird.
TC
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