Screen Preferences locks refresh rate at single value for some monitors.
|Reported by:||gerald.zajac||Owned by:||axeld|
|Has a Patch:||no||Platform:||All|
When using older CRT monitors which do not provide the horizontal and vertical frequency ranges (EDID1_MONITOR_RANGES) in their EDID info, the Screen Preferences locks the refresh rate at the refresh rate of the current video mode. That is, the Refresh Rate drop down list shows only a single entry which is the refresh rate of the current video mode.
The attached diff file fixes this problem by setting the vertical frequency range to 60..85 Hz if the current range is zero which is the case when the EDID info does not contain this info.