EFI and i915kms questions

[Jean-Sébastien Pédron]

On 13/11/2015 18:15, Joe Maloney wrote:
> Hello,

Hi!

> Sometime after changes in FreeBSD 10-STABLE, 10.2 onwards, and 
> recent 11 CURRENT the resolution no longer sets properly when using
> UEFI boot. It now boots with a 640x480 resolution, and kldload
> i915kms results in a black screen. I have not been able to grab a
> debug log, or crash dump even with all of the debugging features
> turned on. I cannot ssh into the laptop when this panic occurs, and
> the screen is black so I can’t really see what happened. I’m curious
> if there is anything else I can do besides enabling dumpdev or
> kldload -v i915kms > output.txt that doesn’t give me any detail.
> Nothing shows up in /var/crash or whatever the directory was.

You could try to set debug.debugger_on_panic=0 in /etc/sysctl.conf. It
often helps to at least get core dumps when the crash happens in a video
driver.

-- 
Jean-Sébastien Pédron

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