[ale] Can Bad Video Settings Fry LCD Monitors?

[Richard Bronosky]

I would feel confident in saying that you couldn't damage an LCD over
DVI or HDMI. I can only say that it is unlikely via VGA. That's the
funny thing about analog signals. You don't know what kind of levels
you are sending over the wire. But DVI and HDMI are digital. If you
send a signal that the monitor can't display, it will just ignore it.
.!# Bruno #!.


On Tue, Oct 29, 2013 at 11:37 PM, Beddingfield, Allen <allen at ua.edu> wrote:
> I can't think of any way you could fry an LCD.  It may just be coincidence.  Maybe check the AC outlet he has them plugged into? If you set something outside the range an LCD can handle, it will just display some sort of error, or not show anything, depending on the manufacturer.
>
> --
> Allen Beddingfield
> Systems Engineer
> The University of Alabama
>
> ________________________________________
> From: ale-bounces at ale.org [ale-bounces at ale.org] on behalf of Aaron Ruscetta [arxaaron at gmail.com]
> Sent: Tuesday, October 29, 2013 10:31 PM
> To: ALE
> Subject: [ale] Can Bad Video Settings Fry LCD Monitors?
>
> I set my housemate up with a Linux system running Mint 13 - an older
> Dell desktop with stock VGA graphics adapter.'
>
> He's been using spare 17" monitors from my standby collection and
> that seem to have been been recognized by the system auto configs,
> but  he just had a second monitor go dead on the system.  The first,
> an AIWA, went to black screen and won't even power on now when I
> try to test it now.  The second, a pretty decent ViewSonic, stays
> black with active VGA connected, is a solid white screen when
> active DVI is connected and the power light flashes yellow after
> an initial blue power up.  Neither will display any of the internal
> settings menu windows.
>
> I'm concerned that there may be something in the video settings
> or Xconfig or Dell graphics card that is stressing these monitors
> to death. I know that with some of the CRT's it was possible to
> fry them with bad horizontal and vertical frequency settings. Any
> one hear of or experience this with LCD panels?
>
> Could totally be coincidence, but I'd rather not burn up any more
> of my spare screens, so any thoughts appreciated.
>
> in peace,
> aaron
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