Screen contents wrap over the right edge

[Julio Merino]

On Fri, Apr 12, 2013 at 8:26 PM, Tom Evans <tevans.uk at googlemail.com> wrote:

>
> Hey Julio
>
> This sounds like overscan is enabled on the monitor. My Panasonic TV,
> hooked up to my FreeBSD HTPC box via HDMI, initially exhibited this
> exact problem until overscan was disabled. If your monitor is perhaps
> usable as a TV, is it doing this?
>
> It might not be called "overscan" on the monitor, it may be called
> "1:1 pixel mapping" (and have the opposite meaning). Have a look
> around in the settings on the monitor to see if there is such an
> option.
>

Hi Tom,

I have played with the only option that could be possibly related (Scaling)
and it made no difference. Actually, if the problem was overscan, I'd
expect to lack some screen contents in every edge or have some additional
padding on every side. But this wrapping of a few pixels horizontally is
harder to explain by overscan (at least from what I have seen in other
monitors with this feature)... did you really get that? I'm curious.

Also, and I forgot to mention this originally: X is somehow screwing up the
monitor. After I have started X, all the in-monitor controls stop working;
I cannot even turn it off! I have to power-cycle it by unplugging the power
for it to behave normally again. It may even be that X is triggering a
firmware bug in the screen that exposes itself as these two issues... or
who knows.

(But I have seen this screen working just fine with Linux on the same
machine. Granted, different X.org driver.)

-- 
Julio Merino / @jmmv