On Wed, Sep 01, 2010 at 09:35:17AM +0200, LEVAI Daniel wrote: > On Mon, Aug 30, 2010 at 23:31:25 +0200, Mark Kettenis wrote: > > The Xorg xserver runs a scary amount of code in a signal handler. > > It's supposed to make your mouse cursor move more smoothly, but I > > can't spot the difference when I disable that "feature". Instead, > > this "feature" breaks certain multi-card setups and god knows what. > > > > So we're considering switching this off by default. Before we do > > that, we'd like to do some wider testing. If you're regularly sitting > > behind an OpenBSD machine running X, can you add the following lines > > to /etc/X11/xorg.conf (or create one with these lines): > > > > Section "ServerFlags" > > Option "UseSIGIO" "false" > > EndSection > > > > and restart X. Let me know if you observe any significant changes in > > behaviour. > > My cursor acts as usual. It occasionally turns into a big vertical > arrow-like thing, and I got the well known radeonhd bug [1] - "The > cursor shows weird corruptions at some points of the screen", although > I'm not using the radeonhd driver. > > However, using this option, after starting firefox everything gets > extremely laggy, and I can interact with my machine with the keyboard or > mouse with 4 seconds intervals. After commenting this option, the > behaviour returns to the usual.
I have seen something similar on my testing on an older Dell with Intel 845GM as I recall. The mouse and keyboard are unresponsive while loading a busy page with many ads. I put this down to those particular stations deliberately defeating DNS resolution of many ad generating sites, but I couldn't confirm that with the single test I tried so far. .... Ken > > > Daniel > > > [1] - https://bugs.freedesktop.org/show_bug.cgi?id=13405 > > > -- > LIVAI Daniel > PGP key ID = 0x83B63A8F > Key fingerprint = DBEC C66B A47A DFA2 792D 650C C69B BE4C 83B6 3A8F
