every so often, screen just goes black

Robert L Cochran cochranb at speakeasy.net
Sun May 17 13:22:47 UTC 2009


I have this problem too. In my case I have an Nvidia board in a laptop:

01:00.0 VGA compatible controller: nVidia Corporation Quadro NVS 160M 
(rev a1) (prog-if 00 [VGA controller])
Subsystem: Dell Device 0233
Flags: bus master, fast devsel, latency 0, IRQ 11
Memory at f5000000 (32-bit, non-prefetchable)
Memory at e0000000 (64-bit, prefetchable)
Memory at f2000000 (64-bit, non-prefetchable)
I/O ports at df00
Capabilities: <access denied>
Kernel modules: nouveau

This is actually driving two displays -- one is the laptop monitor 
itself and the second is a Dell 2408WFP 24" wide screen flat panel 
monitor. The screen goes black on both these monitors, but the laptop's 
monitor recovers first and the Dell flat panel about 2-3 seconds later. 
The display contents seem to be preserved and there is no visible harm. 
But it is very disconcerting and obviously shouldn't be happening.

Bob



On 05/17/2009 08:20 AM, Robert P. J. Day wrote:
>    on my (currently up to date) f11 beta system, every so often while
> i'm in gnome, the screen goes black.  no, it's not the screensaver
> kicking in after a certain idle period.  i might have just typed
> something and, two seconds later, blackness.  move the mouse, i get my
> display back.  no harm, just weird.
>
>   i'm currently running the latest radeon driver, with "XAA" in
> xorg.conf.  it's not fatal, obviously, just unusual -- i've never had
> that behaviour in previous versions of fedora.
>
> rday
> --
>
> ========================================================================
> Robert P. J. Day                               Waterloo, Ontario, CANADA
>
>          Linux Consulting, Training and Annoying Kernel Pedantry.
>
> Web page:                                          http://crashcourse.ca
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