[Bug 23421] dualhead - 2. monitor off (not just blank / black) on radeon; xrandr

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=23421





--- Comment #13 from kapetr <kapetr at mizera.cz>  2009-09-02 23:58:47 PST ---
(In reply to comment #4)
> (In reply to comment #3)
> > and how ?
> > 
> 
> see this page for more info:
> http://wiki.debian.org/XStrikeForce/HowToRandR12
> 
> basically:
> xrandr --addmode <output> <mode>
> xrandr --output <output> --mode <mode>
> 
> the name of the output and mode will depend on your card and monitors e.g.,
> xrandr --addmode VGA-0 1024x768
> xrandr --output VGA-0 --mode 1024x768
> 

Heloo

logs added - see attachments

And another interesting behavior: !!!!

1. with "nomodeset" - the monitor is switched OFF by X start - and - when I
switch to text console (Ctrl+Alt+F2) - the 2. monitor goes ON, and after
switching to X console back (Alt+F1) - goes OFF again.

2. After these test with Fedora 11 (at last time with nomodeset) - my up to now
working dualhead on Ubuntu 9.04 was broken in the same way, like in Fedora 11
with nomodeset - also 2. monitor was switched of by X start !!!

Also after hardcore reset.
Also after running Windows XP (here dualhead has working normal - OK)
Also after 2. reset.

... I was in PANIC ...

Last chance: I turned the computer off and unplug from power line.

... ufff  .... now is my dualhead in Ubuntu working again.


???? It seems, that Xorg or kernel in Fedora 11 did something "evil" with my
Radeon card, something in his intern HW configuration - something what persist
reset but not power off.

Interesting, isn't it ?


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