Hmmm, not sure what caused this black screen.

PC = Toshiba Satellite Pro l105

The symptoms:
This is my wifes PC and usually she falls asleep watching it, wakes up periodically, watches some more, etc.
Well, early this morning, about 3am, I got a poke with a message about I had broken her PC.

After promising to fix it tomorrow, I rolled over and went back to sleep.

When I looked at it this morning, it looked to be running in that all the correct lights were lighted but the screen was black and nothing I could do would light up the screen.
CTL-ALT-DEL, esc, F keys
I had to power off then on to bring it back to life.
Somehow this smells like a power saving issue but I don’t know where to start.

So, is there a log somewhere that would possible have the events in it that might have led up to this ?

Thanks

On 2013-09-24 17:36, hextejas wrote:
>
> PC = Toshiba Satellite Pro l105

You forgot the OS version :wink:

> When I looked at it this morning, it looked to be running in that all
> the correct lights were lighted but the screen was black and nothing I
> could do would light up the screen.
> CTL-ALT-DEL, esc, F keys
> I had to power off then on to bring it back to life.
> Somehow this smells like a power saving issue but I don’t know where to
> start.

I have an old laptop that does that. Which video hardware does it have?


Cheers / Saludos,

Carlos E. R.
(from 12.3 x86_64 “Dartmouth” at Telcontar)

I’ve seen this too. In real life and here in the forums. For the time being, adjust the power management settings in KDE, so that the machine will never suspend / hibernate by itself. Furthermore, disable screen blanking through the screensaver config.
A thing I did find is:

xset s noblank -dpms

, AFAIK you could put that in your wife’s ~/.bashrc

HAH, gotcha since it’s in my signature. So there:P

Anyhow, the video is ATI RS780MC, Radeon HD 3100, at least I think it is .

oh yeah, is there a system log somewhere ?

On 2013-09-24 23:26, hextejas wrote:
>
> robin_listas;2587380 Wrote:

>> You forgot the OS version :wink:

>> I have an old laptop that does that. Which video hardware does it have?

> HAH, gotcha since it’s in my signature. So there:P

:slight_smile:

Ha, but there is a gotcha there.

I can reliably use the signature for that, because I write via NNTP and
Thunderbird. Each machine I use has a different signature. However, you
use the web forum interface, and the signature is a link to data on the
web. If you upgrade to 13.1, all your posts get the signature redone
(but not mine), to say that you are using 13.1 - including your old
posts where you used 12.3. So some one coming by in 6 months (say) will
be mislead. :wink:

> Anyhow, the video is ATI RS780MC, Radeon HD 3100, at least I think it is
> .

You can make sure with the command “hwinfo” in console, that gives very
detailed info. If you ask for “–help” there is one option, I think
gfxcard, that gives that info.

Anyway, mine is “Intel Corporation i845” from “Uniwill Computer Corp”,
and this particular model (i845) is known to give many problems. One, in
my case, is that if the machine sends the display to sleep (dpms?) it
does not awake.

In your case, installing the proprietary driver might help - but I know
little about ati cards.

> oh yeah, is there a system log somewhere ?

Almost all logs go to /var/log. If you do “ls -ltr /var/log/” you get a
listing sorted by date, so you see which log has been written to
recently. You can probably enter by ssh from your machine and see them.


Cheers / Saludos,

Carlos E. R.
(from 12.3 x86_64 “Dartmouth” at Telcontar)