On Tue, May 30, 2017 at 12:22:09PM -0400, Maximilian Pichler wrote:
>As mentioned, I booted another OS from a USB stick and it runs at
>2560x1440@60MHz. Doesn't this make it unlikely that the issue is with
>the monitor or cable? Also, the connection is via DisplayPort, even
>the most basic version of which shouldn't struggle with this
>resolution.
>
>Is there not a more systematic way of debugging this? I find it
>puzzling that none of the logs contains any error message.
>
Just a thought -- maybe it's because there is no error .... ???
man xbacklight(1)
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