[ltp] Vertical refresh rate at VGA out

[Alex Deucher]

On 7/24/05, Georg Sauthoff <gsauthof@techfak.uni-bielefeld.de> wrote:
> On Sun, Jul 24, 2005 at 03:10:53PM -0400, Alex Deucher wrote:
>=20
> Hi,
>=20
> > you'll probably have to force the monitor type using the monitorlayout
> > option.  Also if it can't detect the monitor info via DDC, you may
> > have to specify hsync and vrefresh values either using the crt2hsync
> > and crt2vrefresh options (if you are using mergedfb), or with the
> > hsync and vrefresh options in the monitor section of your config file.
>=20
> thanks for these hints. I have got a working setup now. I did this
> steps:
> 1. specified MonitorLayout ->
>      (II) RADEON(0): Secondary:
>       Monitor   -- CRT
>    but now DDC
> 2. specified CRT2HSync, CRT2VRefresh -> still 60Hz
> 3. specified MetaModes -> I get 85 Hz at external screen
>=20
> In MergedFB with "Clone" I get overlay only at internal-screen. With
> "LeftOf" I get overlay at the external-screen. The option
> OverlayOnCRTC2 doesn't help at Clone mode. The effect is:
> (WW) RADEON(0): Option "OverlayOnCRTC2" is not used

With mergedfb, the overlay will follow the the movie player to which
ever head it is on.  The overlayoncrtc2 option is not used.

>=20
> And prior:
> (II) RADEON(0): Validating CRTC2 modes for MergedFB ------------
> (II) RADEON(0): CRT2 Monitor: Using hsync range of 60.00-100.00 kHz
> (II) RADEON(0): CRT2 Monitor: Using vrefresh range of 50.00-120.00 Hz
> (II) RADEON(0): Clock range:  12.00 to 350.00 MHz
> [..]
> (II) RADEON(0): Not using default mode "1024x768" (hsync out of range)
> (II) RADEON(0): Not using default mode "512x384" (hsync out of range)
> (II) RADEON(0): Not using default mode "1024x768" (hsync out of range)
> (II) RADEON(0): Not using default mode "512x384" (bad mode
>                                                   clock/interlace/doubles=
can)
> (II) RADEON(0): Not using default mode "1024x768" (hsync out of range)
> [..]
> (II) RADEON(0): Total of 18 CRTC2 modes found for MergedFB-----------
>=20
> Any ideas?
>=20

what modes do you have specified in the screen section of your config?

Alex

> Regards
> Georg Sauthoff
>=20
> P.S.: My minimal working dual-head setup Xorg (6.8.99.5) config:
> Section "ServerLayout"
>   Identifier  "intern"
>   Screen 0 "Screen0" 0 0
>   InputDevice "Maus" "CorePointer"
>   InputDevice "USBMaus" "SendCoreEvents"
>   InputDevice "Tastatur" "CoreKeyboard"
> EndSection
>=20
> [..]
>=20
> Section "Monitor"
>   Identifier   "Mon0"
>   VendorName   "Monitor Vendor"
>   ModelName    "Monitor Model"
>   Option       "DPMS"
> EndSection
>=20
> Section "Device"
>   Identifier  "card0"
>   Driver      "radeon"
>   VendorName  "ATI Technologies Inc"
>   Option "DynamicClocks" "on"
>   Option "MonitorLayout" "LVDS,CRT"
>   Option "MergedFB" "true"
>   Option "CRT2Position" "LeftOf"
>   Option "CRT2HSync" "60-100"
>   Option "CRT2VRefresh" "50.0-120"
>   Option "MetaModes" "1024x768-1024x768"
>   Option "OverlayOnCRTC2" "on"
> EndSection
>=20
> Section "Screen"
>         Identifier "Screen0"
>         Device     "card0"
>         Monitor    "Mon0"
> [..]
> EndSection
>=20
>=20
>