No subject
Fri Jul 8 15:12:30 PDT 2011
1. Start up with a 2048x768 surface and set each of the two CRTCs (at=
1024x768 timings) to display left/right half of the screen,
2. Allow for "seamless" mode set, i.e. let the vendor's DRM to report=
that the current mode (set by the VBIOS for example) is the same as the sw=
itch-to mode, and therefore don't turn off the connectors and CRTCs. This =
avoids unnecessary flashes on the screen at boot time.
3. Start up in clone without specifying "video=3D", and not going int=
o 1024x768. We would like to start up in a user-specified mode in clone co=
nfiguration.
We have a highly configurable driver, and we need to be able to control exa=
ctly how the display(s) come up. I'm trying to figure out if there is a wa=
y to do this and still play nice with KMS's initialization sequence.
Are any of those possible under KMS at this time?
Thanks,
Sinclair
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nk=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal>From reading the=
code it is not immediately obvious to me how KMS allows for the following =
boot up behavior and configurations:<o:p></o:p></p><p class=3DMsoNormal><o:=
p> </o:p></p><p class=3DMsoListParagraph style=3D'margin-left:.75in;te=
xt-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style=
=3D'mso-list:Ignore'>1.<span style=3D'font:7.0pt "Times New Roman"'> &=
nbsp; </span></span><![endif]>Start up with a 2048x=
768 surface and set each of the two CRTCs (at 1024x768 timings) to display =
left/right half of the screen,<o:p></o:p></p><p class=3DMsoListParagraph st=
yle=3D'margin-left:.75in;text-indent:-.25in;mso-list:l0 level1 lfo1'><![if =
!supportLists]><span style=3D'mso-list:Ignore'>2.<span style=3D'font:7.0pt =
"Times New Roman"'> </span></span><![en=
dif]>Allow for “seamless” mode set, i.e. let the vendor’s=
DRM to report that the current mode (set by the VBIOS for example) is the =
same as the switch-to mode, and therefore don’t turn off the connecto=
rs and CRTCs. This avoids unnecessary flashes on the screen at boot t=
ime.<o:p></o:p></p><p class=3DMsoListParagraph style=3D'margin-left:.75in;t=
ext-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style=
=3D'mso-list:Ignore'>3.<span style=3D'font:7.0pt "Times New Roman"'> &=
nbsp; </span></span><![endif]>Start up in clone wit=
hout specifying “video=3D”, and not going into 1024x768. =
We would like to start up in a user-specified mode in clone configuration.<=
o:p></o:p></p><p class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNorma=
l>We have a highly configurable driver, and we need to be able to control e=
xactly how the display(s) come up. I’m trying to figure out if =
there is a way to do this and still play nice with KMS’s initializati=
on sequence.<o:p></o:p></p><p class=3DMsoNormal><o:p> </o:p></p><p cla=
ss=3DMsoNormal>Are any of those possible under KMS at this time?<o:p></o:p>=
</p><p class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>Thanks,<=
o:p></o:p></p><p class=3DMsoNormal><br>Sinclair<o:p></o:p></p></div></body>=
</html>=
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