I have a k70 Corsair Keyboard plugged into an ROG Strix B450-F motherboard. Most of the time, when I start my computer up, the keyboard will work fine up until the OS loads. It will light up fine, and I can choose boot or bios options perfectly fine, but as soon as it loads into the OS, I can’t type anything. I have to unplug and replug the usb’s to get it to type again. Sometimes the lighting will get messed up, but usually the lighting is fine throught this. I’ve tried every USB on the computer and nothing makes a difference. I do not have this problem with any other USB devices. I usually use CKB-next to control the software, and it works well with no issues I’ve seen. Restarting that program does not work to get the keys to work, however. I’m using Plasma and 5.10, but it didn’t work on past Kernals either.
Use the virtual keyboard after booting to:
- Log in
- Go to System Settings → Keyboard
- Look at whatever is in keyboard model as in below screenshot:
- Quit System Settings
- Unplug Corsair
- Plug Corsair back in
Go back to System Settings and repeat the above steps.
- If the keyboard model changed, increase the delay with 1 ms to be able to change something on this screen and click Apply to fix it.
- if nothing was changed, go to the Corsair Website and look which exact hardware the Corsair is emulating and choose that model… (You might get lucky and it might be on the bottom label of the keyboard too)
Next time, look at Linux compatibility before buying a keyboard because “Corsair” is not in the list of Linux compatible keyboards…
If that doesn’t work, please read this:
and post some more information so we can see what’s really going on. Now we know the symptom of the disease, but we need some more probing to know where the origin lies…
An inxi --admin --verbosity=7 --filter --no-host --width would be the minimum required information… (Personally Identifiable Information like serial numbers and MAC addresses will be filtered out by the above command)
P.S. If you enter a bit more details in your profile, we can also see which Desktop Environment you’re using, which CPU/GPU you have, …
Thanks! Strangely it has not happened in a few days, but I will try it as soon as it does happen. And thanks for the tip
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OK, so I was able to try it out, and it seems like the model didn’t change, so I tried to find out which hardware they’re trying to emulate, but I didn’t seem to have much luck. I’m not sure I’m missing something though.
Edit: NVM, it seems to be a problem with ckb-next. Uninstalling it helped, but idk if theres anyway to allow myself to control the lighting and have it work
Here is the info as requested
Kernel: 5.10.7-3-MANJARO x86_64 bits: 64 compiler: gcc v: 10.2.1
parameters: BOOT_IMAGE=/boot/vmlinuz-5.10-x86_64
root=UUID=fb76771e-c2fb-45f6-938a-5029c1b414d0 rw quiet apparmor=1
security=apparmor resume=UUID=34903fdd-2ada-44e8-af4d-0b4ea0dd20fd
udev.log_priority=3
Desktop: KDE Plasma 5.20.5 tk: Qt 5.15.2 wm: kwin_x11 dm: SDDM
Distro: Manjaro Linux
Machine:
Type: Desktop Mobo: ASUSTeK model: ROG STRIX B450-F GAMING v: Rev 1.xx
serial: <filter> UEFI: American Megatrends v: 3103 date: 06/17/2020
Memory:
RAM: total: 31.35 GiB used: 2.32 GiB (7.4%)
RAM Report: permissions: Unable to run dmidecode. Root privileges required.
CPU:
Info: 8-Core model: AMD Ryzen 7 2700 bits: 64 type: MT MCP arch: Zen+
family: 17 (23) model-id: 8 stepping: 2 microcode: 800820D L2 cache: 4 MiB
bogomips: 102241
Speed: 1378 MHz min/max: 1550/3200 MHz boost: enabled Core speeds (MHz):
1: 1378 2: 1427 3: 1542 4: 1471 5: 1488 6: 1482 7: 1485 8: 1539 9: 1459
10: 1378 11: 1379 12: 1377 13: 1379 14: 1547 15: 1479 16: 1483
Flags: 3dnowprefetch abm adx aes aperfmperf apic arat avic avx avx2 bmi1
bmi2 bpext clflush clflushopt clzero cmov cmp_legacy constant_tsc cpb cpuid
cr8_legacy cx16 cx8 de decodeassists extapic extd_apicid f16c flushbyasid
fma fpu fsgsbase fxsr fxsr_opt ht hw_pstate ibpb irperf lahf_lm lbrv lm mca
mce misalignsse mmx mmxext monitor movbe msr mtrr mwaitx nonstop_tsc nopl
npt nrip_save nx osvw overflow_recov pae pat pausefilter pclmulqdq pdpe1gb
perfctr_core perfctr_llc perfctr_nb pfthreshold pge pni popcnt pse pse36
rdrand rdseed rdtscp rep_good sep sev sev_es sha_ni skinit smap smca sme
smep ssbd sse sse2 sse4_1 sse4_2 sse4a ssse3 succor svm svm_lock syscall tce
topoext tsc tsc_scale v_vmsave_vmload vgif vmcb_clean vme vmmcall wdt
xgetbv1 xsave xsavec xsaveerptr xsaveopt xsaves
Vulnerabilities: Type: itlb_multihit status: Not affected
Type: l1tf status: Not affected
Type: mds status: Not affected
Type: meltdown status: Not affected
Type: spec_store_bypass
mitigation: Speculative Store Bypass disabled via prctl and seccomp
Type: spectre_v1
mitigation: usercopy/swapgs barriers and __user pointer sanitization
Type: spectre_v2 mitigation: Full AMD retpoline, IBPB: conditional, STIBP:
disabled, RSB filling
Type: srbds status: Not affected
Type: tsx_async_abort status: Not affected
Graphics:
Device-1: NVIDIA GP104 [GeForce GTX 1080] vendor: Gigabyte driver: nvidia
v: 460.32.03 alternate: nouveau,nvidia_drm bus ID: 08:00.0
chip ID: 10de:1b80
Display: x11 server: X.Org 1.20.10 compositor: kwin_x11 driver:
loaded: nvidia display ID: :0 screens: 1
Screen-1: 0 s-res: 5120x1530 s-dpi: 107 s-size: 1216x363mm (47.9x14.3")
s-diag: 1269mm (50")
Monitor-1: DVI-D-0 res: 2560x1440 hz: 60 dpi: 109
size: 597x336mm (23.5x13.2") diag: 685mm (27")
Monitor-2: DP-4 res: 2560x1440 dpi: 109 size: 597x336mm (23.5x13.2")
diag: 685mm (27")
OpenGL: renderer: GeForce GTX 1080/PCIe/SSE2 v: 4.6.0 NVIDIA 460.32.03
direct render: Yes
Audio:
Device-1: NVIDIA GP104 High Definition Audio vendor: Gigabyte
driver: snd_hda_intel v: kernel bus ID: 08:00.1 chip ID: 10de:10f0
Device-2: AMD Family 17h HD Audio vendor: ASUSTeK driver: snd_hda_intel
v: kernel bus ID: 0a:00.3 chip ID: 1022:1457
Device-3: Logitech HD Webcam C615 type: USB driver: snd-usb-audio,uvcvideo
bus ID: 1-1:2 chip ID: 046d:082c serial: <filter>
Device-4: VIA FX-AUDIO-DAC-X6 type: USB
driver: hid-generic,snd-usb-audio,usbhid bus ID: 3-3:3 chip ID: 040d:340b
Sound Server: ALSA v: k5.10.7-3-MANJARO
Network:
Device-1: Intel I211 Gigabit Network vendor: ASUSTeK driver: igb v: kernel
port: e000 bus ID: 03:00.0 chip ID: 8086:1539
IF: enp3s0 state: up speed: 1000 Mbps duplex: full mac: <filter>
IP v4: <filter> type: dynamic noprefixroute scope: global
broadcast: <filter>
IP v6: <filter> type: noprefixroute scope: link
Device-2: Intel Wi-Fi 6 AX200 driver: iwlwifi v: kernel port: e000
bus ID: 07:00.0 chip ID: 8086:2723
IF: wlp7s0 state: up mac: <filter>
IP v4: <filter> type: dynamic noprefixroute scope: global
broadcast: <filter>
IP v6: <filter> type: noprefixroute scope: link
IF-ID-1: vmnet1 state: unknown speed: N/A duplex: N/A mac: <filter>
IP v4: <filter> scope: global broadcast: <filter>
IP v6: <filter> scope: link
IF-ID-2: vmnet8 state: unknown speed: N/A duplex: N/A mac: <filter>
IP v4: <filter> scope: global broadcast: <filter>
IP v6: <filter> scope: link
WAN IP: <filter>
RAID:
Message: No RAID data was found.
Drives:
Local Storage: total: 4.66 TiB used: 466.34 GiB (9.8%)
SMART Message: Unable to run smartctl. Root privileges required.
ID-1: /dev/sda maj-min: 8:0 vendor: Kingston model: SUV400S37120G
size: 111.79 GiB block size: physical: 4096 B logical: 512 B speed: 6.0 Gb/s
serial: <filter> rev: 96R9
ID-2: /dev/sdb maj-min: 8:16 vendor: Western Digital
model: WDS200T2B0A-00SM50 size: 1.82 TiB block size: physical: 512 B
logical: 512 B speed: 6.0 Gb/s serial: <filter> rev: 40WD
ID-3: /dev/sdc maj-min: 8:32 vendor: Toshiba model: HDWD110 size: 931.51 GiB
block size: physical: 4096 B logical: 512 B speed: 6.0 Gb/s serial: <filter>
rev: A8J0
ID-4: /dev/sdd maj-min: 8:48 vendor: Seagate model: ST2000DM006-2DM164
size: 1.82 TiB block size: physical: 4096 B logical: 512 B speed: 6.0 Gb/s
serial: <filter> rev: CC26
Optical-1: /dev/sr0 vendor: HL-DT-ST model: BD-RE WH16NS40 rev: 1.02
dev-links: cdrom
Features: speed: 48 multisession: yes audio: yes dvd: yes
rw: cd-r,cd-rw,dvd-r,dvd-ram state: running
Partition:
ID-1: / raw size: 102.69 GiB size: 100.58 GiB (97.94%)
used: 89.49 GiB (89.0%) fs: ext4 dev: /dev/sda2 maj-min: 8:2 label: N/A
uuid: fb76771e-c2fb-45f6-938a-5029c1b414d0
ID-2: /boot/efi raw size: 300 MiB size: 299.4 MiB (99.80%)
used: 300 KiB (0.1%) fs: vfat dev: /dev/sda1 maj-min: 8:1 label: N/A
uuid: 0438-46FB
ID-3: /gaming raw size: 2.73 TiB size: 2.71 TiB (99.18%)
used: 376.85 GiB (13.6%) fs: ext4 dev: /dev/dm-0 maj-min: 254:0
mapped: vg0-bulk label: N/A uuid: N/A
Swap:
Kernel: swappiness: 60 (default) cache pressure: 100 (default)
ID-1: swap-1 type: partition size: 8.8 GiB used: 0 KiB (0.0%) priority: -2
dev: /dev/sda3 maj-min: 8:3 label: N/A
uuid: 34903fdd-2ada-44e8-af4d-0b4ea0dd20fd
Unmounted:
ID-1: /dev/sdb1 maj-min: 8:17 size: 579 MiB fs: ntfs label: System Reserved
uuid: 9E2009F92009D8E3
ID-2: /dev/sdb2 maj-min: 8:18 size: 1.82 TiB fs: ntfs label: N/A
uuid: 429C0BF89C0BE56F
ID-3: /dev/sdb3 maj-min: 8:19 size: 100 MiB fs: vfat label: N/A
uuid: AA6B-5E16
USB:
Hub-1: 1-0:1 info: Full speed (or root) Hub ports: 10 rev: 2.0
speed: 480 Mb/s chip ID: 1d6b:0002
Device-1: 1-1:2 info: Logitech HD Webcam C615 type: Audio,Video
driver: snd-usb-audio,uvcvideo interfaces: 4 rev: 2.0 speed: 480 Mb/s
chip ID: 046d:082c serial: <filter>
Device-2: 1-5:6
info: Corsair CORSAIR K70 RGB MK.2 SE Mechanical Gaming Keyboard
type: Keyboard,HID driver: usbfs interfaces: 2 rev: 2.0 speed: 12 Mb/s
chip ID: 1b1c:1b6b serial: <filter>
Device-3: 1-9:4 info: Intel AX200 Bluetooth type: Bluetooth driver: btusb
interfaces: 2 rev: 2.0 speed: 12 Mb/s chip ID: 8087:0029
Device-4: 1-10:5 info: Corsair H100i v2 type: <vendor specific> driver: N/A
interfaces: 1 rev: 1.1 speed: 12 Mb/s chip ID: 1b1c:0c09 serial: <filter>
Hub-2: 2-0:1 info: Full speed (or root) Hub ports: 4 rev: 3.1 speed: 10 Gb/s
chip ID: 1d6b:0003
Hub-3: 3-0:1 info: Full speed (or root) Hub ports: 4 rev: 2.0
speed: 480 Mb/s chip ID: 1d6b:0002
Device-1: 3-1:2 info: Logitech G502 SE HERO Gaming Mouse type: Mouse,HID
driver: hid-generic,usbhid interfaces: 2 rev: 2.0 speed: 12 Mb/s
chip ID: 046d:c08b serial: <filter>
Device-2: 3-3:3 info: VIA FX-AUDIO-DAC-X6 type: Audio,HID
driver: hid-generic,snd-usb-audio,usbhid interfaces: 3 rev: 2.0
speed: 12 Mb/s chip ID: 040d:340b
Hub-4: 4-0:1 info: Full speed (or root) Hub ports: 4 rev: 3.0 speed: 5 Gb/s
chip ID: 1d6b:0003
Sensors:
System Temperatures: cpu: 38.4 C mobo: N/A gpu: nvidia temp: 48 C
Fan Speeds (RPM): N/A gpu: nvidia fan: 21%
Info:
Processes: 371 Uptime: 3m wakeups: 0 Init: systemd v: 247 Compilers:
gcc: 10.2.0 clang: 11.0.1 Packages: pacman: 1516 lib: 446 flatpak: 0
Shell: Bash v: 5.1.0 running in: yakuake inxi: 3.2.02
So: no, sorry, don’t kill the messenger, don’t buy Corsair, any more nor Acer as I have the same problem on their Predator line of laptops: I need to keep Windows around in dual boot, just to change my keyboard colours.
P.S. One last piece of advice: with 32GB of RAM, create the following file:
/etc/sysctl.d/30-swap_usage.conf
and copy the following into it:
# invanaar: 2021-02-09: Changed "swappiness" from default 60 to 10:
# Theoretically, only swap when RAM usage reaches around 80 or 90 percent
vm.swappiness = 10
# invanaar: 2021-02-09: Lower vm.vfs_cache_pressure to 75%
# (once cached, probably not immediately needed any more)
#
# This percentage value controls the tendency of the kernel to reclaim
# the memory which is used for caching of directory and inode objects.
#
# At the default value of vfs_cache_pressure=100 the kernel will attempt to
# reclaim dentries and inodes at a "fair" rate with respect to pagecache and
# swapcache reclaim. Decreasing vfs_cache_pressure causes the kernel to prefer
# to retain dentry and inode caches.
vm.vfs_cache_pressure = 75
The above is pretty self-explanatory and will become active at the next reboo.
These parameters will ensure your machine swaps later rather than sooner and once it swaps out, it will not try to swap in immediately neither, so your machine will be “snappier” while under high MEM load.
Thanks! that makes sense
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