> > On Sat, Jan 07, 2017 at 12:45:35PM +0100, Hans de Goede wrote: > > > I've a W541 sitting in my home office at well. I will take it through > > some gpu runtime suspend/resume testing. Which kernel introduces the > > problem I'm looking for ? > > > > I believe mine has the old BIOS / EFI which is less troublesome so I > > will first see if I can reproduce the problem with that and then upgrade > > to see if that introduces the problem. > > > > Peter IIRC you said that after upgrading the firmware I need a new enough > > kernel to be able to even boot, from which kernel onwards will the machine > > boot with the new firmware ? > > That fix is currently commit b2a91a35 in the "next" branch of the repo > at git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi . I'm not sure > what the timeframe for it landing in linus' tree is, but it doesn't look > like it has yet. > > > Also is it possible to downgrade the EFI again ? ... > > IIRC that model has a switch in the firmware to enable downgrading. I > have not tried it. Also, there's some chance the firmware you're > starting from isn't available. > > -- > Peter > just FYI, but W541 with Fedora 25 and Linux 4.10-rc3 + drm-next and the efi fix (you might want to motivate that fix a bit harder), seems to be working well. I can suspend/resume, and the nvidia seems to go off. [ 411.799035] nouveau 0000:01:00.0: DRM: suspending console... [ 411.799059] nouveau 0000:01:00.0: DRM: suspending display... [ 411.799119] nouveau 0000:01:00.0: DRM: evicting buffers... [ 411.799125] nouveau 0000:01:00.0: DRM: waiting for kernel channels to go idle... [ 411.799176] nouveau 0000:01:00.0: DRM: suspending client object trees... [ 411.805616] nouveau 0000:01:00.0: DRM: suspending kernel object tree... [ 413.217090] device_pm-0235 device_set_power : Device [VID1] transitioned to D3hot [ 413.217099] device_pm-0124 device_get_power : Device [VID1] power state is (unknown) [ 413.230201] thinkpad_acpi: EC reports that Thermal Table has changed [ 413.351497] power-0275 __acpi_power_off : Power resource [NVP3] turned off [ 413.351507] device_pm-0235 device_set_power : Device [PEG] transitioned to D3hot [ 413.351526] power-0189 power_get_state : Resource [NVP3] is off [ 413.351530] power-0219 power_get_list_state : Resource list is off [ 413.351542] power-0189 power_get_state : Resource [NVP2] is on [ 413.351545] power-0219 power_get_list_state : Resource list is on [ 413.351548] device_pm-0124 device_get_power : Device [PEG] power state is D2 That is with some acpi debugging enabled (though I'm not quite sure why D2 is where it ends up). Dave. -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
