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port-macppc/43982: Kernel switches display to 40 column mode. Sysinst cannot run.
>Synopsis: Kernel switches display to 40 column mode. Sysinst cannot run.
>Arrival-Date: Mon Oct 18 11:15:00 +0000 2010
>Originator: Peter Kay
>Release: 5.1 RC4
On a PowerMac Digital Audio 733 using either a Geforce 2MX or a Geforce Ti4600
connected to a CRT monitor (an IBM C220p) either via HD15 or by a DVI to HD15
converter, when the kernel is booted via ofwboot.xcf it switches the display
into a 40 column mode.
This is insufficiently wide to run sysinst, so a menu driven installation is
The default width/height reported for the Geforce2 MX in Open Firmware
properties is 640x480. I do not know if this can be fixed as my attempts to
modify it via nvram/nvedit have so far failed.
Latest firmware is in use.
Run install on an Open Firmware 3 system. Possibly limited to only Geforce
cards on a Digital Audio.
Connect the DVI output of Geforce Ti4600 to a TFT monitor. The screen still
changes resolution from the bootup resolution to a much lower one, but the
width is sufficient to use sysinst.
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