Intel Core i7-3630QM UEFI boot results in corrupt display
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I am attempting to install Debian Wheezy onto my new Toshiba Satellite
S855-S5378 laptop using the beta4 debian-installer (I've tried the DVD
images and the netinst images on USB and CD).
When I boot debian-installer in Compatibility Support Module (CSM) mode,
the installer runs fine. However, it would install grub in BIOS mode.
I need it to be in UEFI mode to allow dual booting Windows 8 (which came
pre-installed).
When I boot the debian-installer in UEFI mode, however, I just get a
flash of:
Welcome to Grub!
Error: "prefix" not set.
then the screen is all scrambled. It appears as though a smaller
horizontal resolution is being used and the scan lines are just being
appended to each other. So, image is squished to the stop ~40% of the
screen and the image is illegible.
Is this a UEFI issue or a Grub issue? Any ideas on how I should proceed?
I've noticed that newer versions of grub has a commit (revno: 4412) to
"Reject invalid resolutions" in efi_gop.c. I'm not familiar with
either either UEFI or Grub code, but that sounds promising to me.
I've checked out and compiled the debian-installer code. Would
updating Grub to 2.00 be difficult or have bad consequences? If this
would be the thing to do, I'd appreciate a pointer on how to build
netinst images from the compiled debian-installer; I can't seem to
find anything on how to do that.
Thanks!
- - Keith
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