[CLUE-Tech] X resolution

[Michael Robbert]

Can you send the relevant sections of your Config file and the log file?
Check the log file to make sure you know what config file is getting 
used. On RedHat the log file is /var/log/XFree86.0.log, near the top of 
that log you should see a line that starts with (==) Using config file:
Then scroll down through the log file looking for any line that has 
resolutions on it or any lines that start with (WW) or (EE).

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?
> 

-- 
Michael "Murph" Robbert
System Administrator for Math/CS
Colorado School of Mines, Golden, CO  80401-1887
Office: SH221
Office phone: 303-273-3786
Pager: 303-461-6543 or Text messages: murph_pager at bigfoot.com
Email: mrobbert at mines.edu