[Bug 13199] New: Monitor turns off when internal screensaver is activated

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Nov 12 07:19:16 PST 2007


           Summary: Monitor turns off when internal screensaver is activated
           Product: xorg
           Version: 7.3
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: petr at jatys.cz
         QAContact: xorg-team at lists.x.org

When I activate internal screensaver with blanking on (e.g. xset s activate s
blank), monitor is turned off. It is able to resume correctly, but I think this
behaviour is not wanted, because I can use dpms for this and at least basic KDE
screensaver sets blanking on, so it is hard to turn it off.

I got this behaviour after upgrading from xf86-video-ati-6.6.3 and xorg-1.2 to
xf86-video-ati-6.7.195 and xorg-1.4. When I use xf86-video-ati-6.6.3 with 
xorg-1.4, internal screensaver is working as with xorg-1.2. I am using CRT
monitor and ATI Radeon 9250.

I was able to track it down to RADEONBlank function in radeon_display.c in
xf86-video-ati. When I comment out lines with
...->funcs->dpms(...,DPMSModeOff), screensaver don't anymore turn monitor off.
Obviously, it is not fix.

I think this is also triggered when X server is started, reset and when
switching between X server and text console - in all these cases is monitor
turned off and on again - it disappears with my "not-fix".

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