[ltp] screen remains black after standby on the X40

[Karsten König]

Am Montag 09 März 2009 23:52:21 schrieb Henrique de Moraes Holschuh:
> On Mon, 09 Mar 2009, Volker Krueger wrote:
> > I have an observation which worries me big-time!!
>
> Yes, it looks really bad.  Report it to SuSE buBut I guess you are using=
 
gzilla at once, and either
> switch distros until it gets fixed, or do NOT sleep or suspend those
> laptops.

The same happened to me with a T400 on openSUSE as well, the connected monitor 
did wake up though, but I couldn't revive the laptopscreen with xrandr --off 
and resetting it, switching to terminal, etc. all didn't solve the problem, 
but a restart did. 

> I vaguely recall a somewhat similar bug sometime ago, but I don't recall
> the distro, and which GPU or ThinkPad models had it.

I use an intel integrated, but between T400 / X200s to a X40 quite some time 
passed, doesn't seem model specific.

A google search does turn up alot about this, for example compiz / general 
composite seems to blame sometimes, I just set it back on and could resume 
fine, don't know about the time it didn't work for me.
The system itself is not dead, not even the graphics driver it looks like, 
just the screen power or something.
http://forums.fedoraforum.org/showthread.php?t=205270

also
https://bugzilla.redhat.com/show_bug.cgi?id=473542
mentions a kernel update fixed it, can't remember if it happend to me before 
or after the opensuse kernel update =/

Looks like a very confusing issue =(


Karsten