Re: kern/50011: wrong video resolution during i386 7.0 RC1 install

[David Holland <dholland-bugs%netbsd.org@localhost>]

The following reply was made to PR kern/50011; it has been noted by GNATS.

From: David Holland <dholland-bugs%netbsd.org@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/50011: wrong video resolution during i386 7.0 RC1 install
Date: Mon, 29 Jun 2015 08:17:11 +0000

 On Sun, Jun 28, 2015 at 11:10:01PM +0000, kirk%ba23.org@localhost wrote:
  > I booted the NetBSD 7.0_RC1 i386 iso and tried to install.
  > The console went into some odd resolution and I was unable to see
  > read the console.
  > 
  > https://www.youtube.com/watch?v=E5y1Sim0Ewg
 
 From the video, this happened just after i815drmkms attached.
 
   pci0 at mainbus0 bus 0  configuration mode 1
   pckb0 at pci0 [blur] 0 function[?] 0: vendor 0x8086 product 0x2770 (rev. 0x02)
   agp0 at [blur]: i815-family chipset
   agp0: detected 764k stolen memory
   agp0: aperture at 0x[blur], size 0x1[blur]
   i815drmkms0 at pci0 dev 0 function 0: vendor 0x8086 product 0x2772 (rev. 0x02)
   drm: Memory usable by graphics device = 256M
   drm: Supports vblank timestamp caching Rev [blur] (21.10.2013[?])
   drm: Driver supports precise vblank timestamp query.
   i815drmkms0: interrupting at ioapic0 pin 16 (i9[?]15)
   drm: initialized overlay support
   drm boot[?] error: [blur] [blur]
 
 at which point the screen blanks.
 
 
 ...so, you can probably install by disabling i815drmkms0, as follows:
  - select "boot prompt" from the bootloader menu
  - do "boot -c" for manual configuration
  - at the prompt there type "disable i815drmkms"
  - then continue/exit (c? q? I forget, sorry)
  - at that point the kernel should boot
 
 and once you have the system installed it will be much easier to try
 out proposed fixes for the i815 driver.
 
 -- 
 David A. Holland
 dholland%netbsd.org@localhost