This bug was fixed in the package linux-oem-5.6 - 5.6.0-1020.20
---------------
linux-oem-5.6 (5.6.0-1020.20) focal; urgency=medium
* focal/linux-oem-5.6: 5.6.0-1020.20 -proposed tracker (LP: #1886753)
* Realtek [10ec:c82f] Subsystem [17aa:c02f] Wifi adapter not found
(LP: #1886247)
- SAUCE: rtw88: 8822ce: add support for device ID 0xc82f
* [WD19TB] external DP failed with DRM error message (LP: #1886165)
- drm/i915/tgl: Update TC DP vswing table
- drm/i915/tgl: Implement WA_16011163337
- SAUCE: drm/i915/bios: add intel_bios_hdmi_level_shift()
- drm/i915/tgl: Add HBR and HBR2+ voltage swing table
- drm/i915/dc3co: Avoid full modeset when EXITLINE needs to be changed
- drm/i915/tgl+: Use the correct DP_TP_* register instances in MST encoders
- drm/i915/tgl+: Fix TBT DPLL fractional divider for 38.4MHz ref clock
* ubuntu_aufs_smoke_test failed on Focal OEM 5.6 (LP: #1879308)
- SAUCE: fs: Enable aufs
-- Timo Aaltonen <timo.aalto...@canonical.com> Wed, 08 Jul 2020
11:44:53 +0300
** Changed in: linux-oem-5.6 (Ubuntu)
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1876844
Title:
Speed up the process of s3 resume
Status in HWE Next:
New
Status in linux package in Ubuntu:
Invalid
Status in linux-oem-5.6 package in Ubuntu:
Fix Released
Status in linux-oem-osp1 package in Ubuntu:
Fix Released
Status in linux source package in Bionic:
Invalid
Status in linux-oem-5.6 source package in Bionic:
Invalid
Status in linux-oem-osp1 source package in Bionic:
Fix Released
Status in linux source package in Focal:
New
Status in linux-oem-5.6 source package in Focal:
Fix Released
Status in linux-oem-osp1 source package in Focal:
Invalid
Bug description:
[Impact]
Process of s3 resume take 7s and it's too long which is over 5s.
[Fix]
Instead of using the supported speeds to determine whether to wait for Link
training, check whether the port supports DLL Link Active reporting. The ports
in question do not, so we'll wait only the 100 ms required for Ports that
support Link speeds <= 5 GT/s.
This of course assumes these Ports always train the Link within 100 ms
even if they are operating at > 5 GT/s, which is not required by the
spec.
[test]
With the patch, the total time s3 resume is 4454.244 ms which is smaller than
5s.
[Regression Potential]
Low. Follow the PCI spec to check whether the device supports DLL Link Active
reporting, then choose the time of delay.
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