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On 09/23/2013 11:46 AM, Joakim Gebart wrote:
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<div class="gmail_quote">2013/9/22 Alexander Kapshuk <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:alexander.kapshuk@gmail.com"
target="_blank">alexander.kapshuk@gmail.com</a>></span><br>
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<div class="h5">On 09/21/2013 06:32 PM, Al wrote:<br>
> Bruce Hill wrote:<br>
>> I have "Use smooth scrolling" checked and no such wavy line
anywhere.<br>
><br>
> Hmmm....<br>
><br>
> I just tried Firefox, and get the wavy line when "Use smooth
scolling<br>
> is checked (scrolling with the mouse wheel). It goes away when
unchecked.<br>
><br>
> Did the same in Thunderbird, and I don't see the wavy line, no
matter<br>
> what the setting.<br>
><br>
> Al<br>
><br>
><br>
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Having the "Use smooth scrolling" option unchecked in both Firefox and<br>
Thunderbird seems to have fixed the 'wavy line' problem for me.<br>
<br>
Thanks.<br>
<br>
<br>
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I'm guessing the wavy line that you describe is 'tearing' that appears
when the display is not synced to the framebuffer, i.e. "vsync". I
believe some of the graphics drivers are not even capable of vsync
currently in X11, but I'm not certain.<br>
<br>
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<div class="gmail_extra">/JG<br>
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That sounds right. I just wasn't sure how to best put it into technical
terms.<br>
<br>
Thanks.<br>
<br>
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