Am Montag, 14. September 2009 schrieb Martin (KDE):
Hallo
since my upgrade from F10 to F11 the monitor power saving no longer
works with KDE (I never have tested it with other DEs). Neither
power saving settings in system advanced configuration nor the
usual settings in the display config changes anything. Are there
any special settings to get DPMS working again? Sadly enough, KDE
4.3 dos not make any difference.
To answer my own mail: it is a bug in the kernel (may be ati module).
setting nomodeset as kernel start option the dpms is running again.
This bug is already listed at bugzilla, for those wo are interested:
https://bugzilla.redhat.com/show_bug.cgi?id=508558
Martin
Martin