There isn't anything in top that looks like an issue, gnome-shell was at
the top with a about 9% CPU.
Disabling all extensions does not fix the issue.
I did see some errors in the systemd journal related to PCI, these
appeared a few seconds after trying to use the up and down keys.
Errors in journalctl -f:
Apr 07 07:25:55 robin kernel: pcieport 0000:00:1c.7: AER: Multiple Corrected
error received: 0000:00:1c.7
Apr 07 07:25:55 robin kernel: pcieport 0000:00:1c.7: AER: PCIe Bus Error:
severity=Corrected, type=Physical Layer, (Receiver ID)
Apr 07 07:25:55 robin kernel: pcieport 0000:00:1c.7: AER: device [8086:9d17]
error status/mask=00000041/00002000
Apr 07 07:25:55 robin kernel: pcieport 0000:00:1c.7: AER: [ 0] RxErr
Apr 07 07:25:55 robin kernel: pcieport 0000:00:1c.7: AER: [ 6] BadTLP
Apr 07 07:26:22 robin kernel: pcieport 0000:00:1c.7: AER: Corrected error
received: 0000:00:1c.7
Apr 07 07:26:22 robin kernel: pcieport 0000:00:1c.7: AER: PCIe Bus Error:
severity=Corrected, type=Physical Layer, (Receiver ID)
Apr 07 07:26:22 robin kernel: pcieport 0000:00:1c.7: AER: device [8086:9d17]
error status/mask=00000001/00002000
Apr 07 07:26:22 robin kernel: pcieport 0000:00:1c.7: AER: [ 0] RxErr
Apr 07 07:27:15 robin kernel: pcieport 0000:00:1c.7: AER: Corrected error
received: 0000:00:1c.7
Apr 07 07:27:15 robin kernel: pcieport 0000:00:1c.7: AER: PCIe Bus Error:
severity=Corrected, type=Physical Layer, (Receiver ID)
Apr 07 07:27:15 robin kernel: pcieport 0000:00:1c.7: AER: device [8086:9d17]
error status/mask=00000001/00002000
Apr 07 07:27:15 robin kernel: pcieport 0000:00:1c.7: AER: [ 0] RxErr
Apr 07 07:27:38 robin kernel: pcieport 0000:00:1c.7: AER: Corrected error
received: 0000:00:1c.7
Apr 07 07:27:38 robin kernel: pcieport 0000:00:1c.7: AER: PCIe Bus Error:
severity=Corrected, type=Physical Layer, (Receiver ID)
Apr 07 07:27:38 robin kernel: pcieport 0000:00:1c.7: AER: device [8086:9d17]
error status/mask=00000001/00002000
Apr 07 07:27:38 robin kernel: pcieport 0000:00:1c.7: AER: [ 0] RxErr
Apr 07 07:27:56 robin kernel: pcieport 0000:00:1c.7: AER: Corrected error
received: 0000:00:1c.7
Apr 07 07:27:56 robin kernel: pcieport 0000:00:1c.7: AER: PCIe Bus Error:
severity=Corrected, type=Physical Layer, (Receiver ID)
Apr 07 07:27:56 robin kernel: pcieport 0000:00:1c.7: AER: device [8086:9d17]
error status/mask=00000001/00002000
Apr 07 07:27:56 robin kernel: pcieport 0000:00:1c.7: AER: [ 0] RxErr
Running lspci returns:
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core
Processor Host Bridge/DRAM Registers (rev 08)
00:02.0 VGA compatible controller: Intel Corporation Skylake GT2 [HD Graphics
520] (rev 07)
00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500
v5/6th Gen Core Processor Thermal Subsystem (rev 08)
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI
Controller (rev 21)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP
Thermal subsystem (rev 21)
00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial
IO I2C Controller #0 (rev 21)
00:15.1 Signal processing controller: Intel Corporation Sunrise Point-LP Serial
IO I2C Controller #1 (rev 21)
00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI
#1 (rev 21)
00:17.0 SATA controller: Intel Corporation Sunrise Point-LP SATA Controller
[AHCI mode] (rev 21)
00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #1
(rev f1)
00:1c.7 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #8
(rev f1)
00:1f.0 ISA bridge: Intel Corporation Sunrise Point-LP LPC Controller (rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
02:00.0 Network controller: Intel Corporation Wireless 7265 (rev 59)
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https://bugs.launchpad.net/bugs/1922766
Title:
UP and DOWN keys behave erratically
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