[CLUE-Tech] X resolution

[Jef Barnhart]

Well Matt,

You are in luck. I happen to have a G400, cousin to the G400MAX and
G450. One thing that does not look right is the memory. Your card has
4MB on memory? Most cards of the line had a minimum of 16meg. 

XFree86 may not be detecting the real amount of memory. I do have that
problem on, I think, my G200. You may have to put into your XF86config
file the amount of ram that it has.

Jef

On Fri, 2003-05-30 at 11:37, Matt Gushee wrote:
> Hello, folks--
> 
> I am having an XFree86 resolution. My monitor and video card should be
> able to run at 1280x1024 (and can under Windows), but the highest res I
> can get under X is 1152x864. I've googled but can't find anything that
> is clearly relevant, so I thought I'd give the old CLUE gang a try.
> 
> Here's what I've got:
> 
>   Video card:  Matrox Millennium G450*, 4MB RAM
>   Monitor:     ViewSonic ViewPanel VE170 (LCD)
>   XFree86:     4.1.0**
> 
>   * Or it might be a G400. If it matters, I can open up the machine and
>     find out for sure.
>   ** Yes, I know that's a bit old. It's what comes with Debian.
>     According to the docs it supports this video card, with no
>     qualifications that I know of.
> 
> According to my calculations, 1280x1024 @ 24 bpp *should* work:
> 
>   Available:  4MB * 1024^2 = 4194304 bits
>   Required:   1280 * 1024 * 3 = 3932160 bits [1 byte/pixel * 3 = 24bpp]
> 
> Well, maybe XFree needs to reserve more than 262144 bits for something
> or other. Even so, there's no question that there should be enough VRAM
> at 16bpp; but I've tried that too, and it makes no difference: I can get
> 1152x864 and no more. I have checked the HorizontalSync and VertRefresh
> settings in my XF86Config, and they match the published specs for the
> monitor.
> 
> If it were just the screen real estate, it's not that big a difference;
> I could live with the lower res. But since it's an LCD monitor and its
> physical resolution is 1280x1024, it looks a whole lot better at
> 1280x1024, so I'd really like to fix this if I can.
> 
> Any suggestions?
> 
> -- 
> Matt Gushee                 When a nation follows the Way,
> Englewood, Colorado, USA    Horses bear manure through
> mgushee at havenrock.com           its fields;
> http://www.havenrock.com/   When a nation ignores the Way,
>                             Horses bear soldiers through
>                                 its streets.
>                                 
>                             --Lao Tzu (Peter Merel, trans.)
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