Intel graphics not working after S3 resume on ThinkPad T430

[Brian M. Waters]

A partial solution, at least from a user perspective:

Recompile the kernel with VESA driver disabled, and resume should work
from within an X session. (At least it did for me on 9.2).

My understanding w/ regards to the console - specifically, concerning
suspend/resume and KMS from X to console - is that neither work
currently, but there is a completely new console driver in the works
that should address this issue (https://wiki.freebsd.org/Newcons). So
in practice, you may simply be waiting for newcons to come out.

- BW


On Mon, Feb 3, 2014 at 12:12 PM, Kim Twain <kimtwain0 at gmail.com> wrote:
> Hi, I'm writing from FreeBSD 10-RELEASE x86_64, installed on a Lenovo
> ThinkPad T430 2349H3G (SKU Number: LENOVO_MT_2349) with BIOS version
> G1ET99WW (2.59 ).
>
> The APU is an Intel(R) Core(TM) i5-3210M, and I don't have a
> second/dedicated gpu installed.
>
> I can enter ACPI s3 successfully, both with "acpiconf -s 3" and "zzz".
> I can also resume from S3, but I only get a blank/black screen.
> The system however is correctly working, I can see disk activity by
> running a find on /, and I can create arbitrary files (and invoke
> 'reboot', too).
>
> I then installed xorg and gnome2, to try if the problems persists also
> with an X session running.
>
> I can't switch back to a tty with xorg running, and yes, the problem
> is still present. Moreover, when entering ACPI S3 from X/gnome, I can
> see the status led blinking like in a kernel panic before S3 is
> entered.
>
> The wiki reports the entire ThinkPad T400 series as working fine both
> from a text console and from an xorg session, and resuming without
> problems.
>
> How can I help pinpointing the issue?
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