To reduce the Realtek USB cardreader power consumption
Bug #1811337 reported by
AceLan Kao
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Fix Released
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Fix Released
|
Undecided
|
AceLan Kao | ||
Bionic |
Fix Released
|
Undecided
|
Unassigned | ||
Cosmic |
Fix Released
|
Undecided
|
Unassigned | ||
Disco |
Fix Released
|
Undecided
|
AceLan Kao | ||
linux-oem (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Bionic |
Fix Released
|
Undecided
|
Unassigned | ||
Cosmic |
Fix Released
|
Undecided
|
Unassigned | ||
Disco |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
[Impact]
Realtek USB cardreader consumes more than 1 Watt during long idle if it's not suspended. And it's runtime PM functions are available after v4.20.
[Fix]
To avoid conflicts, have to backport some patches for mmc core.
[Test]
Note: Inside () are the previous value (non-patch)
Sort idle: 7.76W (7.88)
Long idle: 4.658W (5.79)
S3: 0.5W (0.5)
S5: 0.20W (0.208)
[Regression Potential]
Low, most commits are for rtsx_usb_{sdmmc,ms} and are all small changes.
CVE References
summary: |
- To reduce the realtek cardreader power consumption + To reduce the realtek USB cardreader power consumption |
summary: |
- To reduce the realtek USB cardreader power consumption + To reduce the Realtek USB cardreader power consumption |
description: | updated |
tags: | added: originate-from-1788206 somerville |
Changed in linux (Ubuntu Cosmic): | |
status: | New → In Progress |
Changed in linux (Ubuntu Bionic): | |
status: | New → In Progress |
Changed in linux-oem (Ubuntu Cosmic): | |
status: | New → Invalid |
Changed in linux-oem (Ubuntu Disco): | |
status: | New → Opinion |
status: | Opinion → Invalid |
Changed in linux-oem (Ubuntu Bionic): | |
status: | New → In Progress |
Changed in linux (Ubuntu Bionic): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Cosmic): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Disco): | |
status: | In Progress → Fix Committed |
tags: |
added: verification-done-bionic verification-done-cosmic removed: verification-needed-bionic verification-needed-cosmic |
Changed in linux-oem (Ubuntu Cosmic): | |
status: | Invalid → Fix Released |
Changed in linux-oem (Ubuntu Disco): | |
status: | Invalid → Fix Released |
Changed in hwe-next: | |
status: | New → Fix Released |
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This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification- needed- cosmic' to 'verification- done-cosmic' . If the problem still exists, change the tag 'verification- needed- cosmic' to 'verification- failed- cosmic' .
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.
See https:/ /wiki.ubuntu. com/Testing/ EnableProposed for documentation how to enable and use -proposed. Thank you!