When horizontal lines appear/disappear during refresh.....

[Dr. Drib]

...and they end up affecting the contrast, causing a lightening of the letters and screen.

This is the problem that has developed on my Kobo Aura HD.

I suspect it may be the screen controller, although I really have no idea.

To recap:

During normal refresh when going to the next page, dark horizontal lines appear and then disappear, affecting the contrast of the affected area where they occur, which is pretty much the upper area of the screen. It's still readable, but not an experience that one cherishes on a top-of-the-line ebook reader.

I really enjoyed this Kobo ebook reader, but it's present issue has caused me to power it off and use it as a footstool. (Just joking - the footstool part only.)

First, does this sound like something that's even fixable? Or just a sell it for $30-type-fixit-to-get-rid-of-it solution?

Should I tear it apart? (I have a crowbar in the corner, but that may be too large.)

Any suggestions?

[Ken Maltby]

You might try other programs like the alternative readers, to see if it is actually in effect under different software, and then likely a hardware issue. There are some differences in how the screen is addressed and screen refresh accomplished.

Luck;
Ken

[frostschutz]

Does it also happen while the device is connected to a charger? One of my old readers did funny things with its screen sometimes but it was just a battery going bad.

Are you using any mods? When I developed my ScreenSaver mod I occassionally got funny lines in the image and it took me a while to realize it was nickel in the background still drawing its wifi signal indicator - with the wrong rotation setting it turned into funny looking lines.

[Dr. Drib]

Originally Posted by frostschutz

Does it also happen while the device is connected to a charger? One of my old readers did funny things with its screen sometimes but it was just a battery going bad.

Are you using any mods? When I developed my ScreenSaver mod I occassionally got funny lines in the image and it took me a while to realize it was nickel in the background still drawing its wifi signal indicator - with the wrong rotation setting it turned into funny looking lines.

I'm not using any mods at all.

This happens only when the refresh occurs. I've played with different settings, from 1-6. It's the same thing.

When this occurs, the text is degraded, which affects the clarity of the text and the area of the screen. It appears to be most visible on the left side; but again, the entire area is affected.