[Bug 12848] New: Boot and console refresh rate stuck at 50 Hz after having tried tv-out on a Radeon X550

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Oct 18 05:06:58 PDT 2007


http://bugs.freedesktop.org/show_bug.cgi?id=12848

           Summary: Boot and console refresh rate stuck at 50 Hz after
                    having tried tv-out on a Radeon X550
           Product: xorg
           Version: 7.3
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: ghepeu at virgilio.it
         QAContact: xorg-team at lists.x.org


Hello, I'm currently using xorg-server 1.4 and xf86-video-ati 6.7.195 on a
Radeon X550 (RV370) 5B63 (PCIE). Yesterday I decided to try the new TV-out
support, and I connected a PAL tv to my video card using a S-VHS-to-composite
adapter, a composite cable and a composite-to-SCART adapter. 

I couldn't make it works, but this is not important now; what's important is
that now during POST, when I change the BIOS settings and during the boot of
the linux kernel with the standard VESA framebuffer driver the refresh rate is
stuck to 50 Hz (it was 60 Hz before).
To the contrary, when using X all the usual refresh rates are available, and
the same's true for the radeonfb framebuffer driver (but I can't use it because
of bug 10259).

During my tests I rebooted with the TV connected; according to what I found
searching with google, in this case the card sets both the monitor and the TV
to 50 Hz, but when the card is not connected it should default again to 60 Hz.
This doesn't happen in my case. I don't know if this is important but I also
used "xrandr --output S-video --set load_detection 1".


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