pitti pointed on IRC to
https://android.googlesource.com/kernel/msm/+/57195292 ... which doesnt
help for our driver, but the problem does not seem to be uniqe
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adjusting bug description, this is sadly a constant condition, not
related to movie playback
** Summary changed:
- omapfb module floods system with udev events on samsung galaxy nexus when
playing mp4
+ omapfb module floods system with udev events on samsung galaxy nexus
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We can't disable VSYNC uevent, it's required by the driver. All we can
do is to ignore it later on upper layers, such as upstart.
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https://bugs.launchpad.net/bugs/1234743
So upstart's udev bridge needs to have a capability of filtering events.
Adding an upstart upstream task
** Also affects: upstart
Importance: Undecided
Status: New
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** Branch linked: lp:~xnox/upstart/workaround-1234743
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https://bugs.launchpad.net/bugs/1234743
Title:
omapfb module floods system with udev events on samsung galaxy nexus
This bug was fixed in the package powerd -
0.13+13.10.20131007.1-0ubuntu1
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powerd (0.13+13.10.20131007.1-0ubuntu1) saucy; urgency=low
[ Seth Forshee ]
* Don't reset the activity timer for touch events if the screen is of
(LP: #1234743). (LP: #1234743)
[ Ubuntu daily
Enabling Mir with VSYNC disabled in the omapfb driver leaves me in a
state with just a blank screen. I can login via adb shell, so I need to
debug this a bit deeper.
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Thanks James, I will look into what the driver is doing.
** Changed in: linux (Ubuntu)
Assignee: (unassigned) = Colin King (colin-king)
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After some digging I've found the following:
1. commit a4e449e8a08e727b8160cb4e4a0367c447148d2f enables
drivers/video/omap2/omapfb/omapfb-main.c to send VSYNC uevents on each
vsync.
2. hwcomposer.omap4.so handles this VSYNC event, and inspecting
/proc/$pid/maps it appears this is used by
I suppose this is a driver that would still be in the picture when
switching to Mir, and we can't hope to avoid the issue by changing
display servers? You could test this by following the directions at
https://wiki.ubuntu.com/Touch/Testing/Mir.
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