Suspend/Resume on Lenovo IdeaPad S400 with FreeBSD 10?

[Ivan Rokotov]

Hi Kevin,

Thank you for your useful suggestions. It took me several days to test
and debug everything. Here are my results:

2014-04-09 10:14 GMT+04:00 Kevin Oberman <rkoberman at gmail.com>:
> If you want to stay with syscon, try removing VESA from your kernel by
> adding "nodevice VESA" to your kernel.

Tried, changed nothing.

> vt has been MFCed to 10-STABLE, but it is not in 10.0-RELEASE. I believe
> that you can pull vt out of the STABLE repo and build in on RELEASE, but I'd
> suggest just moving to STABLE. I've been using it on my T320 with no issues
> for a couple of months.

Then I tried 10-STABLE, this build:
https://pub.allbsd.org/FreeBSD-snapshots/amd64-amd64/10.0-RELENG_10-r264300-JPSNAP/
Recompiled kernel to include vt and vt_vga.

With acpi_video and i915kms loaded from the console, suspend/resume works.

Under X, with a real Xfce4 environment:

* with xfwm4 windows manager, without any compositing effects,
everything works like a charm. All peripherals wake up, wifi
reconnects, mplayer continues playing video, etc.

* with xfwm4 and any compositing enabled, however, I got screen
corruption, like this:
http://i327.photobucket.com/albums/k477/ivan_rokotov_bsd/1_zps099b1f6d.png
or
http://i327.photobucket.com/albums/k477/ivan_rokotov_bsd/4_zps8ec8912e.png
This is not a big problem, because scrolling/typing inside the window
or simply moving a mouse over it solves the problem.

However, I need compiz (I like Mac-style tabbing) and some GL stuff
(e.g. asymptote). With compiz enabled, I get this horrible corruption:
http://i327.photobucket.com/albums/k477/ivan_rokotov_bsd/2_zpsd7564e4b.png
and no moving or switching to console help. No GL application starts.
I also found this in the X log after resume:

[  1173.617] (EE) intel(0): Failed to submit batch buffer, expect
rendering corruption: Device busy.
 (II) AIGLX: Suspending AIGLX clients for VT switch
[  1173.663] (WW) intel(0): drmDropMaster failed: Unknown error: -22
[  1177.289] (II) AIGLX: Resuming AIGLX clients after VT switch
[  1177.340] (II) intel(0): EDID vendor "CMN", prod id 5239
[  1177.340] (II) intel(0): Printing DDC gathered Modelines:
[  1177.340] (II) intel(0): Modeline "1366x768"x0.0   71.59  1366 1410
1439 1512  768 771 775 789 -hsync -vsync (47.3 kHz eP)

After some experimenting, I found this patch, which solved the problem
completely:
http://lists.freebsd.org/pipermail/freebsd-x11/2013-October/013727.html

Now, I have this in X log after resume:
[  4561.749] (WW) intel(0): retrying batchbuffer submit
[  4561.803] (WW) intel(0): retrying batchbuffer submit
[  4561.857] (WW) intel(0): retrying batchbuffer submit
[  4561.908] (WW) intel(0): retrying batchbuffer submit
[  4561.959] (WW) intel(0): retrying batchbuffer submit
[  4562.012] (WW) intel(0): retrying batchbuffer submit
[  4562.063] (WW) intel(0): retrying batchbuffer submit
[  4562.117] (WW) intel(0): retrying batchbuffer submit
[  4562.171] (WW) intel(0): retrying batchbuffer submit
[  4562.225] (WW) intel(0): retrying batchbuffer submit
[  4562.279] (WW) intel(0): retrying batchbuffer submit
[  4562.333] (WW) intel(0): retrying batchbuffer submit
[  4562.386] (WW) intel(0): retrying batchbuffer submit
[  4562.439] (WW) intel(0): retrying batchbuffer submit
[  4562.493] (WW) intel(0): retrying batchbuffer submit
[  4562.547] (WW) intel(0): retrying batchbuffer submit
[  4564.779] (II) AIGLX: Suspending AIGLX clients for VT switch
[  4564.779] (WW) intel(0): drmDropMaster failed: Unknown error: -22
[  4565.994] (II) AIGLX: Resuming AIGLX clients after VT switch
[  4566.096] (II) intel(0): EDID vendor "CMN", prod id 5239
[  4566.096] (II) intel(0): Printing DDC gathered Modelines:
[  4566.096] (II) intel(0): Modeline "1366x768"x0.0   71.59  1366 1410
1439 1512  768 771 775 789 -hsync -vsync (47.3 kHz eP)

but everything is alive: compiz restarts correctly, GL applications
work as they did before resume. Job done!

A question: is this patch ok? Nothing wrong with it? Do you or anybody
else experienced a similar problem and found a different solution?

> I also add:
> # Out : speaker + headphones
> hint.hdac.0.cad0.nid25.config="as=1 seq=15"
> # In : mic + external mic
> hint.hdac.0.cad0.nid35.config="as=2"
> hint.hdac.0.cad0.nid27.config="as=2 seq=15"

While we are here... I have:
hint.hdaa.0.nid20.config="as=1 seq=0 device=Speaker"
hint.hdaa.0.nid21.config="as=1 seq=15 device=Headphones"
hint.hdaa.0.nid18.config="as=3 seq=0 device=Mic"
hint.hdaa.0.nid24.config="as=3 seq=15 device=Mic"

"as=2" for your mic means anything special?

> # Minimize the number of interrupts from the sound card
> hint.pcm.0.buffersize=65536
> hint.pcm.1.buffersize=65536
> hw.snd.feeder_buffersize=65536
> hw.snd.latency=7

hw.snd.latency=7 is for reducing power consumption?

Thank you very much!
Ivan