Re: [dev] st very slow to refresh when x is oriented left / right

From: Mihail Zenkov <>
Date: Tue, 5 Feb 2013 21:26:29 +0000

What video card and driver you use?

2013/2/5, Nick <>:
> I thought I should try the latest version of st in git, as lots of
> fun activity has happened.
> So this is a weird one. I often have my monitor vertical, using
> 'xrandr -o left', as that is clearly superior.
> However the newer versions of st, using XFT, are very slow at
> refreshing when things are in this mode. It takes around 0.3 seconds
> (guess) to refresh, so things don't catch up with typing well at
> all.
> CPU usage goes up to 100% while typing (with top reporting XOrg as
> the offender). Things are fine if I have a small window ~5 rows
> high, but not when I have one of about 30.
> This didn't happen with earlier revisions of st; all the releases
> not using xft are fine, and an earlier checkout I have from when xft
> support was still in a branch (56d8f361918d) also works fine (that's
> about a year old, though...)
> I could bisect I suppose, to find the offending commit, but if
> anyone has any clues, similar experiences, or ideas of where to look
> in the code, I'd be happy to do so.
> I suspect this has been around for a while, as ISTR bumping into it
> a while ago, but I didn't look into it then. My bad.
> Nick
Received on Tue Feb 05 2013 - 22:26:29 CET

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