Another couple of data points in case it helps Tested on Thinkpad T420s and T530 with NetBSD/amd64 - both have similar behaviour
8.99.25 Single user: - Suspends and seems to resume but hangs on first disk access "wd0a: device timeout reading fsbn ..." netbsd-8 Single user: - Suspend (hw.acpi.sleep.state=3) and resume appears to work reliably many times in a row - Booting multi user after suspend/resume: wireless iwn0 does not appear to work "iwn0: could not load firmware .text section" netbsd-8 Multi user no x11: - Suspends, keyboard *usually* non responsive on resume (but can switch virtual terminals) On Wed, 21 Nov 2018 at 05:57, David H. Gutteridge <da...@gutteridge.ca> wrote: > > On Tue, 2018-11-20 at 16:25 +0100, Riccardo Mottola wrote: > > Hi David, > > > > David H. Gutteridge wrote: > > > FWIW, I'm able to get suspend and resume to work reliably on a > > > Lenovo > > > T420 with NetBSD-8.0_STABLE. (With 8.99.x, it doesn't work as > > > reliably > > > because the SATA driver seems to have issues after resumption which > > > don't occur with 8.0.) I didn't have to do anything of note to get > > > it > > > to work, it just does, assuming there's nothing extra attached. > > > (Read > > > on below.) > > > > The T420 is a lot newer and is amd64 instead of x86. > > True. What I can also say is that I tested the i386 port with it too > (see kern/53658), and it worked too. I've also tested i386 with an LG > X110 that I used to run NetBSD 5.x and then 7.x on. I could never get > it to suspend. With 8.0, it doesn't resume successfully, because of an > issue with the i915 DRM driver, but with the newer DRM code base that > was pulled into HEAD, I've found 8.99.25 did successfully resume, so > there may be hope. > > I have access to a Toshiba Satellite Pro that's a roughly similar > vintage to your T43; I'll see how it behaves when I have a chance. > > > > On the other hand, I cannot get it to work on a Lenovo x131e (the > > > AMD > > > CPU version, with Radeon graphics). With that machine, it resumes, > > > but > > > the display stays dark. (This behaviour is consistent with most > > > Linux > > > kernels I've tried as well, so there's something tricky about it.) > > > > Yes, I have this issue on the T43 with ATI graphics, however it often > > does work and come back (but takes several secons) it is unreliable, > > but > > the only ThinkPad I have NetBSD on which sometimes suspends/resumes > > correctly. > > > > Did you try disabling video in configure and then trying to > > suspend/resume after a clean boot? > > I haven't tried that yet, no. I'll add it to the list. > > > Christos suggested to me disabling video and audio (things in my > > experience cause issue too). > > I tried also fine-grained disabling based on dmesg devices. > > > > However, I went down to bare-bones, leaving just internal hard disk > > and > > keyboard - disabling everything which I could (but perhaps I missed > > something) and yet it fails! > > > > > One other thing to consider is whether you have anything extra > > > plugged > > > into the USB stack when you're trying to suspend. I've found having > > > pretty much anything plugged in (including a mouse) causes my T420 > > > to > > > fail to completely suspend. > > > > Indeed, I did all the test with a just clean-booted machine with no > > USB > > mouse, keybord, dongles or else. > > > > It did not help. > > Hopefully, we'll figure this out. > > Dave > >
