Re: DVI/wifi interference

I too have been having interference problems with my viewsonic VP930B
but not with a wireless network connection but with a wireless
keyboard.

I have tried 3 different wireless keyboards in close proximity to the
screen all exhibiting similar effects: Dropped keystrokes & reduced
battery life.

At first i thought it was the keyboards, then the computer. Only today
did it dawn on me that it might be the screen. The dvi & vga cables
that come with the screen have built in ferrite blocks. What is cuasing
this is probably improper sheilding on the power supply.

David Grant wrote:
"Bill Kearney" <wkearney99@xxxxxxxxxxx> wrote in message
news:NN-dnd4vicIIKmPZnZ2dnUVZ_rydnZ2d@xxxxxxxxxxxxxxxx
I played around a bit more today and noticed that the ping/packet-loss
rate
changes with the 2nd (VGA port) monitor refresh rate. For a few minutes I
can run the DVI monitor at 75Hz if I lower the VGA monitor to 72 or
70Hz -
but the ping time increases exponentially after a couple minutes and then
the connection dies until I change the refresh rate (doesn't matter what
I
change it to, it works for a few minutes regardless of the rate). This
doesn't seem like RFI to me, more like a driver problem or some other
internal conflict. Anyone beg to differ? I'm gonna try moving the linksys
pci card to a different slot and see if that changes anything.

If it's not RFI then make sure the two cards are not sharing an IRQ
(interrupt). Some PCs have a PCI buss that shares interrupts between
certain slots. This can be a real pain in the ass to debug if you've got
anything more than just one or two cards.


Tried all pci slots and no luck (linksys is the only pci card and radeon is
agp). Gonna try another linksys card at some point.

Another thing i noticed is that when the CPU is occupied (when loading a
program like outlook) ping times jump up over 1 sec. Is this normal for a
modern-day PC (2.8ghz intel) or is this a sign I have some sort of bus
issue?



--
Posted via a free Usenet account from http://www.teranews.com

.

Relevant Pages

  • Debian and Wireless PCI card
    ... I have this very generic wireless PCI card. ... So I used the FCC ID to track it down ...
    (comp.os.linux.networking)
  • Re: USB Adapter
    ... I am also looking into buying wireless USB ... I use a USB adapter and a PCI card in various machines. ...
    (alt.internet.wireless)
  • Group Policy loading
    ... it seems to be a problem with XP, not the Dell drivers): ... connecting to a Buffalo WLA-G54 Wireless Access Point. ... logon') option to make Windows XP wait for the network to ... file to match that of the Dell TrueMobile card. ...
    (microsoft.public.win2000.group_policy)
  • Re: WAP54Gs with WPA not handing out IPs from SBS2003 server
    ... Do you have enough IP addresses in the DHCP pool on the DHCP server? ... There's not even 50 machines total on the network. ... I'll assume you're running Windoze XP Home using Wireless Zero Config ... With the PCMCIA card, it's the WZC software. ...
    (alt.internet.wireless)
  • Re: WAP54Gs with WPA not handing out IPs from SBS2003 server
    ... Do you have enough IP addresses in the DHCP pool on the DHCP server? ... There's not even 50 machines total on the network. ... I'll assume you're running Windoze XP Home using Wireless Zero Config ... With the PCMCIA card, it's the WZC software. ...
    (alt.internet.wireless)