Graphics Card or Monitor problem, how to fix?

Wed Aug 4 23:45:59 UTC 2004

Ok, here's something interesting.  The screen is slightly unstable even in a
text-mode console.  The whole screen has a very slight shimmy going on.
Keep in mind that just prior to installing Fedora, I had a Debian Sarge
installed, and this did not occur, so there must being something going on
with the way the Intel 810 driver is initializing the chipset.  Any ideas?

Thanks!

--Steven

>-----Original Message-----
>From: fedora-list-bounces at redhat.com 
>[mailto:fedora-list-bounces at redhat.com] On Behalf Of Steven Hodgen
>Sent: Wednesday, August 04, 2004 9:59 AM
>To: 'For users of Fedora Core releases'
>Subject: RE: Graphics Card or Monitor problem, how to fix?
>
>1024*768*4 = 3145728 bytes or just over 3mb.  That's at 
>1024x768.  So, 4mb is enough to support this resolution.  The 
>graphics mode comes up, it works fine.  It's always worked 
>fine in Windows, with 8mb.  Additionally, I'm not doing any 
>animation, where'd I'd need more than 1 buffer, I'm just 
>running Gnome.  I really don't think the RAM is the issue.  
>I'd say it must be something to do with how the refresh is set 
>up.  But the configuration files for specifying these things 
>is very technical, and while I'm technically inclined, I 
>really don't have time to dig into how all the parameters 
>work, plus there's always the possibility of damaging the monitor.
>
>Thanks for looking at this for me!
>
>--Steven
>
>PS. The reason I didn't want to trim is that I didn't know 
>what information would be useful.  I didn't want to trim 
>something important out.
>
>>-----Original Message-----
>>From: fedora-list-bounces at redhat.com
>>[mailto:fedora-list-bounces at redhat.com] On Behalf Of ne...
>>Sent: Wednesday, August 04, 2004 4:51 AM
>>To: For users of Fedora Core releases
>>Subject: RE: Graphics Card or Monitor problem, how to fix?
>>
>>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) Switch
>>to: http://www.speakeasy.net/refer/190653
>>Friends may come and go, but enemies accumulate.
>>		-- Thomas Jones
>> 07:35:02  up 37 days, 50 min,  3 users,  load average: 0.00, 0.00, 
>>0.00
>>
>>
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