Subject: Re: kernel argument values for YDL2.1 / Wallstreet 233
From: Juan Manuel Palacios (jmpalacios@mac.com)
Date: Sun Jan 06 2002 - 09:46:47 MST
Actually the correct syntax is "vmode x y". Just like that, with
spaces and no comas or colons. But that is at the console when the
system has already booted. To provide this as a kernel argument you need
a different syntax, either one:
video=atyfb:vmode:10,cmode:16
append="video=atyfb:vmode:10,cmode:16"
video=atyfb:vmode:10,32
append="video=atyfb:vmode:10,32"
Which ever works. If I recall correctly all of them worked for me
because the kernel can just take the relevant info out of what you
provide in the argument. Anyhow, try them out to see which one's right.
Yours,...
Juan.
On Sunday, January 6, 2002, at 11:02 AM, Gordon Neault wrote:
> As per a correct message posted earlier:
> Vmode refers to a video mode.
> My comments (previous message and below) refer to video depth.
> therefore correct syntax would be something like:
> vmode:10;15
> (video mode 10, depth 15 = 16 bit = thousands of colors)
> rather than the examples I gave below.
> Begin forwarded message:
>
>> From: Gordon Neault <gordo-x@shaw.ca>
>> Date: Sun Jan 06, 2002 09:57:56 AM America/Regina
>> To: yellowdog-general@lists.yellowdoglinux.com
>> Subject: Re: kernel argument values for YDL2.1 / Wallstreet 233
>> Reply-To: yellowdog-general@lists.yellowdoglinux.com
>>
>> Some basic info about vmodes (video modes)
>> This refers to the color depth (bits per pixel)
>> vmode:8 8bit color 256 colors
>> vmode:15 16bit color 16K colors
>> vmode:16 16bit color
>> vmode:24 24bit color millions
>> vmode:32 24 bit color
>>
>> Generally you will see references to 8, 16 and 24 bit color. In some
>> cases that's what you use to specify color depth.
>> However, a color depth must be dividable by 3; therefore 16 bit color
>> is actually 15 bit. Sometimes you have to be specific (15) and
>> sometimes the video settting assumes convention (name it 16) but
>> actually sets the "correct" value (ie depths called 16 bit are
>> actually set at 15 bit).
>> 32 bit is really 24 bit color, again sometimes 32 (naming convention)
>> will work and sometimes you need to name it correctly (24). Sometimes
>> it really doesn't matter (eg either 24 or 32 work equally as well).
>>
>> I don't run Linux on a LCD screen or a powerbook; I understand some
>> video arguments use non-standard settings for video depth on these
>> machines. Having said that, I would keep to settings that are either
>> standard (8,15,16,24,32) or one specifically mentioned as a solution
>> to your particular machine (like G4 powerbooks) rather than just
>> trying numbers more or less at random.
>>
>
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