Bug 205064 - gpm wakes up every 2 seconds to poll the console, even in runlevel 5
Summary: gpm wakes up every 2 seconds to poll the console, even in runlevel 5
Keywords:
Status: CLOSED RAWHIDE
Alias: None
Product: Fedora
Classification: Fedora
Component: gpm
Version: rawhide
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Petr Rockai
QA Contact: David Lawrence
URL:
Whiteboard:
Depends On:
Blocks: wakeup 223780
TreeView+ depends on / blocked
 
Reported: 2006-09-03 08:18 UTC by Arjan van de Ven
Modified: 2007-11-30 22:11 UTC (History)
0 users

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2006-10-11 08:53:45 UTC


Attachments (Terms of Use)
patch to round the 2 second sleep up to a full wallclock second boundary (900 bytes, patch)
2006-09-03 08:18 UTC, Arjan van de Ven
no flags Details | Diff

Description Arjan van de Ven 2006-09-03 08:18:54 UTC
Description of problem:

GPM wakes up every 2 seconds to poll the console, even when in runlevel 5. This
is causing spurious wakeups which cause less powersaving than possible. 

gpm does the polling since in X mode gpm has to be inactive, so it is waiting
for X to go away / the user to switch to text mode. It polls for this every 2
seconds.

I question the usefulness of gpm (in default install!) in runlevel 5, but if it
has to stay, the attached patch slightly modifies gpm such that the wakeup will
happen at exactly the second tick (where it will coincide with other similar
wakups in other programs such as hal) and not cause a
wakeup-from-powermanagement-sleep all on it's own.

Comment 1 Arjan van de Ven 2006-09-03 08:18:54 UTC
Created attachment 135455 [details]
patch to round the 2 second sleep up to a full wallclock second boundary

Comment 2 Arjan van de Ven 2006-10-09 15:06:10 UTC
ping?

any ideas why gpm is even started in runlevel 5?

Comment 3 Petr Rockai 2006-10-09 19:24:10 UTC
Sorry, no, no idea, if it was for me, i'd just scrap it as it is :). I can 
apply the patch, although it is probably still somewhat suboptimal to have gpm 
running at all. If there are no objections i'll drop it from runlevel 5.


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