[mythtv-users] Video suspend issues with EPIA M10000/Unichrome

migmog migmog at gmail.com
Tue Mar 13 10:19:38 UTC 2007

On 13/03/07, James Warden <warjamy at yahoo.com> wrote:
> Hi,
> That's very interesting to me. I have an EPIA EN12000-EG, with unichrome pro
> (CN700 northbridge). When I resume from S3, the screen is completely blank
> (like DPMS is off). No way to get the screen alive again. Did you guys
> experience a black screen after resuming from S3 ?? I use the openchrome
> driver, if that's of relevance.
> Thanks for any tips.
> J.

A couple of things you could try:

- Typically you have several virtual terminals, one of which has your
X display on it, one has hte console, and the rest have a text login
prompt. These are what you can get to with Alt-F1, Alt-F2 ... Alt-F7.
This is distro specific.

In the suspend script, try changing to a console VT before suspend,
then back to X on resume. The commands you need are 'chvt 1' and
(usually) 'chvt 7'. Do this in a ssh or telnet session before you edit
the script to make sure you're doing it right.

If that doesn't work, you might need to restart X on resume. Use something like
kill -HUP `pidof X`

If that doesn't work, kill X before you suspend, and then start it
again when you resume. How to do this depends on your setup. It might
be something like '/etc/init.d/gdm stop', or some other weird

Good luck. These problems can be a pain to fix.

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