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Defenestrator
n00b
Joined: 04 May 2006
Posts: 32
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 Posted: Wed May 10, 2006 2:22 am Post subject: How to get screensaver to shut off for certain jobs? |
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| This is a small thing but it would make me happier. I often find that I want to run some complex, CPU intensive screensaver for the fun of it. I also want my overnight 'emerge -u world' jobs to get done by morning. Is there a way to make it so that certain programs, like emerge, will switch the screensaver to a simple blank screen and then switch it back to whatever it was when they finish? |
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Deepak420
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Joined: 12 Jan 2005
Posts: 173
Location: Beantown
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| Posted: Wed May 10, 2006 2:57 am Post subject: |
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You could write a script which blanks and resets your screensaver then do a
$ ssBlank.sh && emerge -u world && ssUnBlank.sh
What are you using to display your screensaver (xscreensaver, kscreensaver etc...)? |
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Defenestrator
n00b
Joined: 04 May 2006
Posts: 32
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| Posted: Wed May 10, 2006 3:40 am Post subject: |
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| Deepak420 wrote: | You could write a script which blanks and resets your screensaver then do a
$ ssBlank.sh && emerge -u world && ssUnBlank.sh
What are you using to display your screensaver (xscreensaver, kscreensaver etc...)? |
Yeah, I thought of that. I just wondered if there was a daemon that could handle this kind of thing. It's KDE so kscreensaver I suppose. |
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JuNix
Apprentice
Joined: 05 Mar 2003
Posts: 224
Location: Sheffield
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| Posted: Wed May 10, 2006 7:31 am Post subject: |
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Did you ever think of just using DPMS power management as a screensaver? It is less eye candy I know, but it sure doesnt use any CPU time  |
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FormerSlacker
Guru
Joined: 11 Mar 2003
Posts: 340
Location: Toronto, ON. Canada
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| Posted: Wed May 10, 2006 7:35 am Post subject: |
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| Perhaps you can try setting the nice'ness (low priority) of the screensaver so that it will only use cpu time when available. |
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Deepak420
Apprentice
Joined: 12 Jan 2005
Posts: 173
Location: Beantown
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| Posted: Thu May 11, 2006 8:07 pm Post subject: |
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| Code: | | dcop kdesktop KScreensaverIface setBlankOnly true && emerge -u world && dcop kdesktop KScreensaverIface setBlankOnly false |
Is what you want. Though, you should drop the dcop lines into scripts to make 'em look clean and easier to use.
| Quote: | | Perhaps you can try setting the nice'ness (low priority) of the screensaver so that it will only use cpu time when available. |
I used to do that, but it can be annoying if you need to check something on the computer while compiling due to the lag experienced in the screensaver's stopping. |
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Defenestrator
n00b
Joined: 04 May 2006
Posts: 32
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| Posted: Thu May 11, 2006 9:03 pm Post subject: |
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| Deepak420 wrote: | | Code: | | dcop kdesktop KScreensaverIface setBlankOnly true && emerge -u world && dcop kdesktop KScreensaverIface setBlankOnly false |
Is what you want. Though, you should drop the dcop lines into scripts to make 'em look clean and easier to use.
| Quote: | | Perhaps you can try setting the nice'ness (low priority) of the screensaver so that it will only use cpu time when available. |
I used to do that, but it can be annoying if you need to check something on the computer while compiling due to the lag experienced in the screensaver's stopping. |
Well this is close to what I want. I would still like a configurable daemon. Something that could see when certain programs were started and then modify screensaver behavior accordingly. The screensavers could register themselves with the daemon, and recieve these messages, etc... I guess this does not exist yet. Your point about the lag in shutting off the screensaver is well taken and is one of things motivating this. Thanks. |
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free-zombie
n00b
Joined: 11 May 2006
Posts: 11
Location: Bavaria, Germany
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| Posted: Thu May 11, 2006 9:50 pm Post subject: |
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it'd be easier to write a bunch of simple shell functions for the apps you want...like
| Code: | | emerge () { dcop stuff; /usr/bin/emerge "$@" ; dcop stuff } |
or something along those lines with a script that uses $0.... |
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