[haiku-bugs] Re: [Haiku] #11358: Blackness screensaver - no desktop recovery
- From: "pulkomandy" <trac@xxxxxxxxxxxx>
- Date: Wed, 22 Oct 2014 18:06:48 -0000
#11358: Blackness screensaver - no desktop recovery
-------------------------------------+----------------------------
Reporter: vidrep | Owner: korli
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: Add-Ons/Screen Savers | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking:
Has a Patch: 0 | Platform: All
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Comment (by pulkomandy):
Yes, obviously something got broken here. I'm trying to understand which
part of the system, as one of several things can have happened:
* The video driver has crashed, or
* There is a bug in DPMS/powersave handling in the video driver and that
prevents wakeup, or
* app server crashed, or
* there was a kernel panic for an unrelated reason, or
* the screen_blanker crashed, but the screen was turned off
... and so on.
So here are the things to try:
* Run the screensaver in test mode from the screen preflet. Does it crash?
(if it does, this rules out screen_blanker, as in this case the
ScreenSaver preflet handles things directly)
* Uncheck "turn off screen" checkbox. Wait for screensaver. Does it crash?
(if it does, it is not an issue with powersaving)
* Wait for the crash with serial port connected and the windows machine
capturing from it. Is there some output? (if there is, it would be a
kernel crash)
* Configure your machine for ssh use {{{useradd sshd ; passwd}}}. Connect
to it from another machine on your network (you can use Putty as an ssh
client for windows, or ssh from linux or Haiku). Wait for the crash. Is
the ssh session also blocked, or does it still work? If it still work, can
we get the output of:
{{{
ps
cat /var/log/syslog
}}}
At least one of these tests should point to what/where the crash actually
is.
--
Ticket URL: <https://dev.haiku-os.org/ticket/11358#comment:5>
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