This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1931021
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Tags added: focal
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https://bugs.launchpad.net/bugs/1931021
Title:
Focal (20.04): IR Remote Keys Repeat Many Times Starting with Kernel
5.8.0-49
Status in linux package in Ubuntu:
Incomplete
Bug description:
The bug reported at
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1926030 affects
Focal (20.04).
I use an IR remote with the ir-keytable package. Everything was
working fine until kernel 5.8.0-49 was automatically installed by
Software Updater on Ubuntu 20.04.2. When any key is pressed on the
remote, the key is repeated about 500 times. The kernel is now
5.8.0-50, and the problem persists.
Other users on the MythTV mailing list are reporting the issue, and it
appears that the problem is related to changes in the following files:
drivers/media/rc/ir-mce_kbd-decoder.c
drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
drivers/media/rc/serial_ir.c
It has been reported that reverting the ir-mce_kbd-decoder.c and rc-
main.c files to the older versions fixes the problem.
/proc/version_signature > version.log:
Ubuntu 5.8.0-50.56~20.04.1-generic 5.8.18
lspci -vnvn:
00:00.0 Host bridge [0600]: Intel Corporation Xeon E3-1200 v6/7th Gen Core
Processor Host Bridge/DRAM Registers [8086:590f] (rev 06)
Subsystem: ASUSTeK Computer Inc. Xeon E3-1200 v6/7th Gen Core Processor Host
Bridge/DRAM Registers [1043:8694]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort+ >SERR- <PERR- INTx-
Latency: 0
Capabilities: [e0] Vendor Specific Information: Len=10 <?>
Kernel driver in use: skl_uncore
ir-keytable -V:
IR keytable control version 1.18.0
lsb_release -rd:
Description: Ubuntu 20.04.2 LTS
Release: 20.04
uname -r:
5.8.0-55-generic
This test F-hwe-5.8 / G-5.8 kernel works:
https://people.canonical.com/~phlin/kernel/lp-1926030-revert-for-ir/
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