RE: Graphics Card or Monitor problem, how to fix?

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On Aug 3, 2004 at 17:08, Steven Hodgen in a soothing rage wrote:

[TOP POSTING REARRANGED]

>Then I replied
>>On Aug 3, 2004 at 10:55, Steven Hodgen in a soothing rage wrote:
>>
>>>Hello,
>>>
>>>I've installed Fedora on an old Dell Dimension L566cx.  It has the 
>>>onboard video, which is an Intel 810, and the 17" monitor that comes 
>>>with it.  My problem is that the screen flickers VERY badly, even in 
>>>low-res modes like 640x480.  I thought that perhaps the video 
>>circuitry 
>>>was having issues, or the monitor, so I tried swapping the HD with an 
>>>identical system, and using a different monitor.  Both the alternate 
>>>computer and monitor work perfectly in Windows 2K.  I've 
>>looked at the 
>>>refresh rate chosen in different modes, and they seem fine.  
>>Even 60Khz doesn't look this bad on Windows.
>>>
>>>Any thoughts on what could be wrong and how I can fix it.  As I've 
>>>mentioned before, I'm trying to push for our lab to be a 
>>Linux lab, but 
>>>this one issue will blow my chances.
>>How much ram does the graf card use? How many colours are you 
>>using? You might have to dedicate more ram to the card. You 
>>should also post the section of XFree86.0.log/Xorg.0.log from 
>>/var/log that states what resolution is being used.
>Wow, after looking at the log file you mention, there's tons of information
>that looks like it might be relevant to my problem.  The file is too big to
>post here though.   So, I slapped up a quick web-site at
>http://sjh.objectis.net, so anyone who wants to take a look at it will have
>access to the entire file without me being a rude poster.
Yeah but you could trim it ((-:.

(II) I810(0): VESA VBE Total Mem: 1024 kB
(II) I810(0): VESA VBE OEM: Intel810(TM) Graphics Chip Accelerated VGA BIOS

If I am right, this says you have 1MB video ram. This is not
enuf to do much. Then it gets upped

(II) I810(0): I810CheckAvailableMemory: 151548k available
(==) I810(0): Will alloc AGP framebuffer: 8192 kByte

So now you have 8MB video ram. Still not much. Now looking at
the highest 640x480 resolution available:

(**) I810(0): *Default mode "640x480": 36.0 MHz, 43.3 kHz, 85.0 Hz
(II) I810(0): Modeline "640x480"   36.00  640 696 752 832  480 481 484 
509 -hsync -vsync

the frequencies available are just too low. If I am correct, you
will have to up the video ram to at least 16MB. Try to use

(==) Depth 24 pixmap format is 32 bpp

is asking for too much. I have never used the Intel 810 chip,
so someone more knowledgeable than me will have to take over.

HTH
N.Emile...
-- 
Registered Linux User # 125653 (http://counter.li.org)
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