[Bug 23508] CRT Refresh rate wrong

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Jan 11 12:42:19 PST 2010


http://bugs.freedesktop.org/show_bug.cgi?id=23508





--- Comment #13 from Raynor <memphis007fr at yahoo.fr>  2010-01-11 12:42:18 PST ---
(In reply to comment #0)
> Created an attachment (id=28897)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=28897) [details]
> Config File
> 
> I have a Radeon 8500LE connected to a Mitsubishi Diamond Pro 900U CRT monitor
> through the VGA/D-SUB port.  For a refresh rate setting of 1400x1050 at 85Hz, I'm
> actually seeing 82 or 83Hz (as reported by my monitor's OSD) - which is low
> enough to give me headaches.
> 
> My OS is Mandriva 2009.1 with all the latest updates (version 6.12.2 of the
> radeon driver).
> Windows XP and Mandriva 2007 on other partitions are fine, this must have been
> introduced fairly recently.
> 
> Contact me if any more info is required.
> 
> Thanks,
> Mark.
> Also, My apologies if I've chosen the wrong project to report this to...
> 

I have the same problem with a Radeon X800GTO on a Mitsubishi Diamond Plus
230SB. xrandr says 1600*1200 at 85Hz but the OSD says 78.4Hz and the image is
shaking.
There is no problem in 75Hz.

I think i know why it worked for you with Mandriva 2007: It's kernel mode
setting. New versions of the distributions activate it by default. I have this
problem only when kernel mode setting is activated.


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