Comment # 12
on bug 76564
from Christian König
(In reply to comment #10) > (In reply to comment #8) > > Okay, but doesnt that mean in this case it is a problem with the display > > (HDMI?) clock, as I am not using HDMI audio? > > > > Is there a way I could get more detailed logging of what is happening on my > > system? > > I don't know how XBMC calculates the frame rate off hand. The PLL used to > generate the display clock may not always match the exact pixel clock of the > monitor. The driver calculates pll dividers to get as close as possible to > the pixel clock of the display mode. See radeon_compute_pll_avivo() in > radeon_display.c Yeah, but on multiple occasions I had the feeling that fglrx might do a better job on this than the radeon kernel module. We might want to take a second look at this and try to compare the settings fglrx and radeon uses for the same mode.
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