#17261: intel_extreme: image shrinks instead of displaying selected part when
framebuffer size is bigger then video mode size
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Reporter: X512 | Owner: rudolfc
Type: bug | Status: reopened
Priority: normal | Milestone: Unscheduled
Component: Drivers/Graphics/intel_extreme | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking:
Platform: All |
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Comment (by pulkomandy):
On i945 and older generations, I think we need to always program the
southbridge to use the LCD native resolution, and the northbridge to use
whatever resolution we want to display. The panel fitter is somewhere
between the two, and will do the conversion.
If I remember correctly, this is done with the hardwareTarget mode that is
used to program the southbridge side, and is always copied from the EDID
data. However I'm not sure if this mode is fully initialized with all
fields in the structure. I think reverting the changes in
LVDSPort::SetDisplayMode that touch hardwareTarget, at least for this
chipset family, should help with this.
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Ticket URL: <https://dev.haiku-os.org/ticket/17261#comment:10>
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