Slow xterm response

[Pat Kane]

Does you laptops "cpu MHz" change when the screen blanks?
What does "cat /proc/cpuinfo" show before and after the latency
event?


On Dec 5, 2007 11:09 AM, Bill Moseley <moseley at hank.org> wrote:
> I've posted twice before without response, but it's very irritating to
> deal with on a daily basis.
>
> Every day I plug my Gutsy laptop into the lan and hit power.
>
> Then on my desktop I ssh into the laptop and start up a development
> web application.
>
> As soon as the laptop's screen goes blank my xterm sessions show
> latency.  If I hold down a key and repeat a letter it goes along in
> fits and starts.
>
> Now, I do not notice any latency in accessing the web application on
> the laptop, but I think that would be much harder to see.  So, I'm not
> sure if it's something related to just the xterm session or for all
> processes on the laptop.  There's no jump in cpu usage when this
> happens so I don't think it's related to some process looping.
>
> I've got a script I use when it happens:
>
> XAUTHORITY=/var/lib/gdm/:0.Xauth sudo /usr/bin/xset -q -display :0.0 dpms force off -q | grep Monitor
>
> which gets rid of the latency.
>
> If I run it *before* the latency starts, like I just did, the first
> run make the latency show up:
>
> moseley at tiger:~/cat_svn$ XAUTHORITY=/var/lib/gdm/:0.Xauth sudo /usr/bin/xset -q -display :0.0 dpms force off -q | grep Monitor
> [sudo] password for moseley:
>   Monitor is On
>   Monitor is Off
>
> <now latency>
>
>
> moseley at tiger:~/cat_svn$ XAUTHORITY=/var/lib/gdm/:0.Xauth sudo /usr/bin/xset -q -display :0.0 dpms force off -q | grep Monitor
>   Monitor is Off
>   Monitor is Off
>
> <fixed>
>
>
> I suspect that's not much to go on, but if that was happing to you and
> driving you crazy what would you do to narrow down?
>
> Weird.
>
>
>
> X Window System Version 1.3.0
> Release Date: 19 April 2007
> X Protocol Version 11, Revision 0, Release 1.3
> Build Operating System: Linux Ubuntu (xorg-server 2:1.3.0.0.dfsg-12ubuntu8)
> Current Operating System: Linux tiger 2.6.22-14-generic #1 SMP Sun Oct 14 23:05:12 GMT 2007 i686
> Build Date: 29 September 2007
>
>
>
> --
> Bill Moseley
> moseley at hank.org
>
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