** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1828657
Title:
Slow resume after lid close/open
Status in linux package in Ubuntu:
Confirmed
Bug description:
Summary
1.) Release Info:
Description: Ubuntu 19.04
Release: 19.04
2.) Package version: linux-image-5.0.0-13-generic
3.) Expected behavior: Computer resumes shortly after opening lid.
4.) Actual behavior: Computer takes ~2 minutes to resume after opening lid.
I have installed Ubuntu 19.04 (Disco Dingo) on my Lenovo Flex 6-11IGM.
I found that when it resumes from sleep after opening the lid, it
takes a long time to resume (~2 minutes).
While experimenting with the upstream kernel releases, I found that
the problem was introduced with version 5.0.5 version of the Linux
kernel; the problem does not occur when I run version 5.0.4.
I've narrowed the culprit down to the following commit in the upstream
kernel:
a57af6d07... ALSA: hda - Enforces runtime_resume after S3 and S4 for
each codec
This change was applied to the ubuntu kernel with commit
9c51afaceb61459d2becac8fb32c860bb084e643.
The following messages appear in the system log upon resume with the
released ubuntu kernel:
May 05 20:22:11 brian-Lenovo-FLEX-6-11IGM kernel: snd_hda_intel 0000:00:0e.0:
azx_get_response timeout, switching to polling mode: last cmd=0x20bf8100
May 05 20:22:11 brian-Lenovo-FLEX-6-11IGM kernel: hid-sensor-hub
001F:8086:22D8.0003: timeout waiting for response from ISHTP device
May 05 20:22:11 brian-Lenovo-FLEX-6-11IGM kernel: snd_hda_intel 0000:00:0e.0:
No response from codec, disabling MSI: last cmd=0x20bf8100
May 05 20:22:11 brian-Lenovo-FLEX-6-11IGM kernel: snd_hda_codec_hdmi
hdaudioC0D2: Unable to sync register 0x2f0d00. -11
These messages do not appear in the system log upon resume when
running with upstream kernel version 5.0.4.
I have upgraded the system BIOS to the latest from Lenovo (6qcn47ww),
but the problem persists.
For now, I will run with the 5.0.4 version of the upstream kernel, as
I am not experiencing any issues with it.
Thank you.
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