Bug 193613

Summary:	Loading i915 KMS driver in /boot/loader.conf and using vt (newcons) results in endless reboot loop
Product:	Base System	Reporter:	Daniel Engberg <diizzy>
Component:	kern	Assignee:	freebsd-bugs (Nobody) <bugs>
Status:	Closed FIXED
Severity:	Affects Only Me	CC:	emaste, guru, info
Priority:	---	Keywords:	i915
Version:	CURRENT
Hardware:	amd64
OS:	Any

Description Daniel Engberg freebsd_committer

2014-09-13 18:16:07 UTC

Enabling vt (newcons) and accidentally (and incorrectly?) having 915kms_load="YES" results in an endless reboot loop.

FreeBSD 11.0-CURRENT #4 r271499: Sat Sep 13 13:28:58 CEST 2014

Intel G45 chipset, Intel DG45ID motherboard

Best regards,
Daniel

Comment 1 Ed Maste freebsd_committer

2014-09-14 14:21:34 UTC

See also https://wiki.freebsd.org/Newcons - similar reports on other hardware, where i915kms_load="YES" produces a black screen and apparent hang.  (This is how my ThinkPad X220 behaves.)

Comment 2 Matthias Apitz 2014-10-27 19:57:56 UTC

I have an USB disk with 11-CURRENT (r269739) and in /boot/loader.conf set:

kern.vty=vt
i915kms_load="YES"

while the disk boots fine on Acer EeePC 900 and Acer Aspire One D250,
it gives on Dell E6330 a black screen after some seconds of booting and
the system seems to hang; only power-cycle is possible; commenting-out
the i915kms_load line, the system boots up fine;

as it is reproduceable fine, I'm willing to help and insert debug messages
if someone could guide me through; thx

Comment 3 Juan Ramón Molina Menor 2015-07-20 17:56:36 UTC

For what is worth, this does not happen with a S440 ThinkPad (Intel HD 4400 Haswell) with CURRENT 20150716-r285616.

Comment 4 Daniel Engberg freebsd_committer

2019-06-16 14:06:07 UTC

I no longer have this hardware and it seems to work fine on newer releases