Poor image quality on Thinkpad T60 notebook WXSGA+ w/ Intel Corporation Mobile 945GM

Josh Triplett josh at freedesktop.org
Sun Feb 18 00:08:07 PST 2007

Gregory Maxwell wrote:
> On 2/5/07, Gregory Maxwell <gmaxwell at gmail.com> wrote:
> [snip]
>> image at all), but worse there is a faint horizontal banding in the
>> display similar to what I remember seeing on old interlaced displays
>> with low refresh rates.
> [snip]
> My girlfriend said she couldn't see the horizontal banding.. So to
> confirm my non-insanity I made a test image 2px high, 30px wide. The
> left 15 pix has blue a blue pixel on top and a red pixel on the
> bottom.. the right half reverses this.
> Because every other line is dimmer than it's neighbor, this causes a
> color change every 15 pixels (vertical bars, alternating between more
> purple and more lavender), it's really obvious that something is
> wrong:

Do you observe the same problem on an external monitor?

- Josh Triplett

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