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Bug#603035: kfreebsd-i386: broken display

Package: installation-reports
Severity: normal

-- Package-specific info:

Boot method: usb stick
Image version: daily mini.iso (20101107)
Date: 20101107

Machine: VIA Nehemia CPU, VIA graphics chipset
Partitions: <df -Tl will do; the raw partition table is preferred>

Base System Installation Checklist:
[O] = OK, [E] = Error (please elaborate below), [ ] = didn't try it

Initial boot:           [O]
Detect network card:    [ ]
Configure network:      [ ]
Detect CD:              [ ]
Load installer modules: [ ]
Detect hard drives:     [ ]
Partition hard drives:  [ ]
Install base system:    [ ]
Clock/timezone setup:   [ ]
User/password setup:    [ ]
Install tasks:          [ ]
Install boot loader:    [ ]
Overall install:        [ ]


I ran the installation process from a usb stick. GRUB displays fine, I
pick "Default install". After the ramdisk and kernel are loaded, I can
see briefly about half a page of kernel information, but the remainder
of the kernel boot messages are shrunk to a single line. The boot
proceeds to the first install dialog, which is unreadable, see:


Here are the results of my experimentations on this machine:

    - I changed grub's display mode, to see if the use of gfxterm was
      the root cause of the problem. Setting "output_terminal text"
      does not solve the problem.
    - I installed FreeBSD 8.1 (no problem encountered) to see if
      FreeBSD's kernel was unable to use my graphic card properly, but
      the dispaly is fine.
    - I tried to install using a serial console, but it failed (I can
      get grub's I/O on the serial console, but not the install
      process). Is it feasible?
    - I tried to cheat and boot FreeBSD's kernel as it is on my disk
      to bypass the kernel used in mini.iso, but I get a kernel panic.

My guess is that kfreebsd's kernel in the install images differs from
upstream in such a way that it no longer supports my graphic card
properly. Graphics are provided by an onboard VIA chip, I'll provide
more information about it later.


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