Bug 206905

Summary: Xorg choose wrong display size under Parallels
Product: [Fedora] Fedora Reporter: Ian Burrell <ianburrell>
Component: xorg-x11-drv-vesaAssignee: X/OpenGL Maintenance List <xgl-maint>
Status: CLOSED CANTFIX QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: 6   
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OS: Linux   
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Last Closed: 2006-09-29 21:36:57 UTC Type: ---
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Xorg log none

Description Ian Burrell 2006-09-18 00:41:50 UTC 
I installed FC6T3 under Parallells on a MacBook.  It automatically chose the
display size of 1600x1200 when the MacBook monitor is only 1280x1024.

FC5 required configuring the display size.  In combination with bug #206900
where s-c-d won't change the display size, I had to manually edit xorg.conf to
get the right size.

I am not sure if Parallels supports EDID and correctly reports the resolution to
the guest OS.  I put in a support ticket to find that out.
Comment 1 Ian Burrell 2006-09-18 00:42:34 UTC 
Created attachment 136498 [details]
Xorg log
Comment 2 Adam Jackson 2006-09-29 21:36:57 UTC 
There does not appear to be any DDC information available, and the faked VBIOS
is reporting a maximum resolution of 1600x1200, so that's what we end up using.
 As it stands, this isn't a bug we can fix.

If Parallels gains the ability to report native screen size somehow this will
get fixed.  The options are:

- set the maximum resolution available through VBIOS to native screen size
- add DDC emulation to Parallels (and wire up our vesa driver to use it better)
- add VBE Panel extensions support to their VBIOS (and wire up our vesa driver
to use that info at all)