Booting successfully was like a 1 in 5 chance. I looked into the UEFI settings and found a player in this crime - tried installing ubuntu in legacy and met with exactly all the same problems in this bug report, then tried manually creating EFI partition and switching back to UEFI (which caused LOTS of grey hairs!) which eventually worked but then didn't solve the problems anyway (black screen and random hangs at random unless modesetting was disabled) and there seemed to be underlying systemd errors.
That patch you mentioned for me to try, according to that bug report, was ported upsteam into 3.18rc3 and i've been trying every kernel (both mainline debug and custom made with ehci support disabled etc) during the 3.18 cycle with varying amounts of success but never solving the power problems fully. When i gave up with 14.10 yesterday and installed 14.04 LTS, there isn't a single problem to be found anywhere the difference in stability is astounding.
I discovered that all these acpi problems, errors for the keyboard, hiccups with ehci not behaving and most importantly: the backlight not working despite reconfiguring it and the machine not powering off properly were all caused as a result of a faulty EFI install of ubuntu 14.10 and _i think_ some systemd-logind bug or at the least inherent to a package in ubuntu 14.10 rather than kernel-side. Phew! It's been a long time since i last updated this report, and a lot of testing has happened but everything is at long last fixed.įirst of all, i think i should say what an absolute mess the UEFI/Boot settings are in. I think we're close to narrowing down the issue(s) though! Unfortunately neither kernel seems to completely fix the issue 100%, as it still won't power off properly at shutdown? (See dmesg_after_patched_kernel.txt)ģ.14.21 also boots with no parameters set AND there's no warnings/errors (e.g. Results: Some success with patched 3.17.0 kernel! Can actually boot without any of the parameters set now, but still some errors/warnings recorded. Having seen a couple of messages suggesting this might be a regression from 3.15+, i also tried the latest 3.14 (3.14.21) from ubuntu's kernelmainline as well as building a custom 3.17 with the patch you linked to. Pci=noacpi, noapic and nolapic: just garbled text and then it freezes and won't respond to anything at all, so there's no choice but to just switch it off.įull dmesg attached after booting (dmesg_full_pnpacpi=off.txt)Īlso for completeness, i've attached the results of Trying to boot without any of the parameters gives the same results as "i2c_designware 80860F41:05 failure requesting irq 37" "i2c_designware 80860F41:02 failure requesting irq 34"
proc/acpi/fan and /proc/acpi/thermal_zone/*/trip_points via 'cat' are both empty.ĭw_dmac INTL9C60:00: invalid resource (for anything with the power button?)Īnd the following with the latter acpi debugging parameters: Pnpacpi=off boots and behaves itself reasonably (currently using this) Pci=noacpi doesn't boot, hangs on garbled textĪcpi=noirq boots but then hangs on plymouth splash However, these are the results of debugging boot parameters:Īcpi=off boots but with fans constantly going
Laptop: Acer Aspire E5-511, with latest BIOS (v1.03)īooting is very temperamental, and i can't get it to hibernate/suspend without becoming totally non-responsive to get the /var/log/kern.log.0 file.
Bugzilla – Full Text Bug Listingĩ6greenmachine,, alfred.bez, andy.shevchenko, bjorn,, darknight.wings, dmytro.kyrychuck, elwaterson, erlington.j, fryjatt3, fryjatt, harlemsquirrel, ijramirezpaz, itsikstrashcan, kexabar180, libor.chmelik, marci_r, pertti.kellomaki, phartatmisassa, rkurbatov, rui.zhang, samuel-kbugs, tolstov_den, wirab24144ĭmesg from fresh EFI ubuntu 14.04LTS install