X230 suspend

[kmeaw]

I am having issue with Thinkpad X230 suspend when OS is booted using Heads.

When I try to suspend my laptop, running Linux 5.2.11-arch1-1-ARCH, it disables the backlight (as usual), but instead of suspending after a second enables the backlight again, delays for a few seconds, and then disables the backlight and finally suspends.

On resume the backlight does not enable immediately — I see a delay of a few seconds, then the backlight enables and I see the VT screen, but the CPU fan is running at 100% and the system is immensely slow ­— echoing a single character typed on a keyboard takes about a minute.

No such problem occurs on a vanilla coreboot 563b869 with SeaBIOS and Intel VBT.

[kmeaw]

Update: the problem does not occur if I extract fallback/payload from the heads ROM file and inject it into vanilla coreboot's ROM, then run the heads payload through the SeaBIOS's boot menu.

[merge]

yes. suspend and resume on the X230 is simply broken in coreboot 4.8, which is old, but still used in current builds of Heads. This will be fixed when we use coreboot 4.10 or later.

[kmeaw]

Should I try rebuilding with coreboot 4.10 by just changing version (and hash) inside modules/coreboot ?

[merge]

nope. it's quite some work to do that (dealing with the Heads-patches on top of coreboot). in fact there've been numerous issues/PRs starting to do that. one needs to take time, start over and finish that work.

[tlaurion]

I do not see this behavior in QubesOS with 4.8.1 in my branch?

…

On September 23, 2019 7:08:01 AM UTC, Martin Kepplinger ***@***.***> wrote: yes. suspend and resume on the X230 is simply broken in coreboot 4.8, which is old, but still used in current builds of Heads. This will be fixed when we use coreboot 4.10 or later. -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: #608 (comment)

-- Sent from /e/ Mail

[gordon-quad]

@merge This question might be a little bit out of scope of this issue, but Is there a place where I can check which patches are those and why they are there?
If I understand correctly heads is just linux kernel + initrd, what stops me from just compiling it and flashing into my existing 4.11 coreboot as payload?

[tlaurion]

@merge This question might be a little bit out of scope of this issue, but Is there a place where I can check which patches are those and why they are there?
If I understand correctly heads is just linux kernel + initrd, what stops me from just compiling it and flashing into my existing 4.11 coreboot as payload?

@gordon-quad : The answer to your question can be found here

If you have questions about this, please open another issue.

[tlaurion]

Was working in same coreboot version before (4.8.1). Not sure what is happening here

[tlaurion]

If I understand correctly heads is just linux kernel + initrd, what stops me from just compiling it and flashing into my existing 4.11 coreboot as payload?

@gordon-quad : That would need coreboot patches or equivalent to take benefit of measured boot, which never landed on coreboot for Ivy/Sandy bridges, which #605 #721 #709 are about.

[tlaurion]

#721 (comment)

[tlaurion]

@jans23

[tlaurion]

@PatrickRudolph do you have a quote to fix this resume from suspend issue still present under coreboot 4.12 (measured boot, not VBOOT+measured boot) testing builds (based on #721) ?

This can be tested from here https://app.circleci.com/pipelines/github/tlaurion/heads/303/workflows/55b002ed-357f-42da-9de7-5af4e66f8828/jobs/329/artifacts on x230.

x230-htop-verification internal flashable rom (BIOS region only) is here: https://329-103208611-gh.circle-artifacts.com/0/build/x230-hotp-verification/coreboot.rom