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JumboAg
Apprentice
Joined: 03 Mar 2007
Posts: 205
Location: Dallas, TX
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 Posted: Wed Jun 12, 2024 3:10 am Post subject: weird orangepi3-lts keyboard issue |
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| As an experiment, I transplanted a recent armbian kernel/modules/firmware for the orangepi3-lts to a gentoo SD card and have an odd problem I cannot figure out. I have horrific keyboard performance both over the serial TTL console and normal connected USB keyboard. It basically is missing almost every other key I press. Nothing in dmesg or my systemd journal logs. I dont see this issue with the same hardware, kernel/modules/firmware on an armbian partition. Only thing I can thing of is a gentoo systemd setting that's causing some performance conflict somewhere but stumped as to what it could be. |
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Hu
Administrator
Joined: 06 Mar 2007
Posts: 22618
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| Posted: Wed Jun 12, 2024 12:08 pm Post subject: |
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| If you go very slowly, such as one keypress per two seconds, does it still lose keys? My first thought is to determine whether the issue is that the kernel does not read keys fast enough to keep up (in which case going very slowly should show no lost keys) or that the software is somehow consuming every Nth key in a way other than your terminal (in which case the loss should remain roughly constant no matter how slow you go). I have seen the latter on regular systems when multiple programs end up fighting over a single terminal, causing each of them to consume some of the keys typed. |
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JumboAg
Apprentice
Joined: 03 Mar 2007
Posts: 205
Location: Dallas, TX
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| Posted: Wed Jun 12, 2024 1:55 pm Post subject: |
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| Hu wrote: | | If you go very slowly, such as one keypress per two seconds, does it still lose keys? My first thought is to determine whether the issue is that the kernel does not read keys fast enough to keep up (in which case going very slowly should show no lost keys) or that the software is somehow consuming every Nth key in a way other than your terminal (in which case the loss should remain roughly constant no matter how slow you go). I have seen the latter on regular systems when multiple programs end up fighting over a single terminal, causing each of them to consume some of the keys typed. |
yes, regardless of my typing speed its losing keys. It's worse when I type slow
fast test (A-Z)
root@orangepi3-lts ~ # abcdegijlmpqstvxy
slow test (A-Z)
root@orangepi3-lts ~ # bdfhjknprtvy
CPU is near idle. nothing running in the background except essentials
| Code: | root@orangepi3-lts ~ # ps -ef
UID PID PPID C STIME TTY TIME CMD
root 1 0 1 08:50 ? 00:00:02 /sbin/init
root 2 0 0 08:50 ? 00:00:00 [kthreadd]
root 3 2 0 08:50 ? 00:00:00 [pool_workqueue_release]
root 4 2 0 08:50 ? 00:00:00 [kworker/R-rcu_g]
root 5 2 0 08:50 ? 00:00:00 [kworker/R-rcu_p]
root 6 2 0 08:50 ? 00:00:00 [kworker/R-slub_]
root 7 2 0 08:50 ? 00:00:00 [kworker/R-netns]
root 8 2 0 08:50 ? 00:00:00 [kworker/0:0-device_link_wq]
root 9 2 0 08:50 ? 00:00:00 [kworker/0:0H-mmc_complete]
root 10 2 0 08:50 ? 00:00:00 [kworker/0:1-events]
root 11 2 0 08:50 ? 00:00:00 [kworker/u8:0-events_unbound
root 12 2 0 08:50 ? 00:00:00 [kworker/R-mm_pe]
root 13 2 0 08:50 ? 00:00:00 [rcu_tasks_trace_kthread]
root 14 2 0 08:50 ? 00:00:00 [ksoftirqd/0]
root 15 2 0 08:50 ? 00:00:00 [rcu_sched]
root 16 2 0 08:50 ? 00:00:00 [migration/0]
root 17 2 0 08:50 ? 00:00:00 [cpuhp/0]
root 18 2 0 08:50 ? 00:00:00 [cpuhp/1]
root 19 2 0 08:50 ? 00:00:00 [migration/1]
root 20 2 0 08:50 ? 00:00:00 [ksoftirqd/1]
root 21 2 0 08:50 ? 00:00:00 [kworker/1:0-pm]
root 22 2 0 08:50 ? 00:00:00 [kworker/1:0H-kblockd]
root 23 2 0 08:50 ? 00:00:00 [cpuhp/2]
root 24 2 0 08:50 ? 00:00:00 [migration/2]
root 25 2 0 08:50 ? 00:00:00 [ksoftirqd/2]
root 26 2 0 08:50 ? 00:00:00 [kworker/2:0-events]
root 27 2 0 08:50 ? 00:00:00 [kworker/2:0H-events_highpri
root 28 2 0 08:50 ? 00:00:00 [cpuhp/3]
root 29 2 0 08:50 ? 00:00:00 [migration/3]
root 30 2 0 08:50 ? 00:00:00 [ksoftirqd/3]
root 31 2 0 08:50 ? 00:00:00 [kworker/3:0-events]
root 32 2 0 08:50 ? 00:00:00 [kworker/3:0H-kblockd]
root 33 2 0 08:50 ? 00:00:00 [kdevtmpfs]
root 34 2 0 08:50 ? 00:00:00 [kworker/R-inet_]
root 35 2 0 08:50 ? 00:00:00 [kworker/u8:1-events_unbound
root 36 2 0 08:50 ? 00:00:00 [kauditd]
root 37 2 0 08:50 ? 00:00:00 [oom_reaper]
root 38 2 0 08:50 ? 00:00:00 [kworker/R-write]
root 39 2 0 08:50 ? 00:00:00 [kcompactd0]
root 40 2 0 08:50 ? 00:00:00 [ksmd]
root 41 2 0 08:50 ? 00:00:00 [khugepaged]
root 42 2 0 08:50 ? 00:00:00 [kworker/R-crypt]
root 43 2 0 08:50 ? 00:00:00 [kworker/R-kinte]
root 44 2 0 08:50 ? 00:00:00 [kworker/R-kbloc]
root 45 2 0 08:50 ? 00:00:00 [kworker/R-blkcg]
root 46 2 0 08:50 ? 00:00:00 [kworker/u8:2-events_unbound
root 47 2 0 08:50 ? 00:00:00 [kworker/R-tpm_d]
root 48 2 0 08:50 ? 00:00:01 [kworker/u8:3-events_unbound
root 49 2 0 08:50 ? 00:00:00 [kworker/R-md]
root 50 2 0 08:50 ? 00:00:00 [kworker/R-md_bi]
root 51 2 0 08:50 ? 00:00:00 [kworker/R-devfr]
root 52 2 0 08:50 ? 00:00:00 [watchdogd]
root 53 2 0 08:50 ? 00:00:00 [kworker/1:1-events]
root 54 2 0 08:50 ? 00:00:00 [kworker/0:1H-mmc_complete]
root 55 2 0 08:50 ? 00:00:00 [kswapd0]
root 56 2 0 08:50 ? 00:00:00 [ecryptfs-kthread]
root 57 2 0 08:50 ? 00:00:00 [kworker/3:1-events]
root 58 2 0 08:50 ? 00:00:00 [kworker/R-kthro]
root 59 2 0 08:50 ? 00:00:00 [kworker/2:1-rcu_gp]
root 60 2 0 08:50 ? 00:00:00 [kworker/2:2-events_power_ef
root 61 2 0 08:50 ? 00:00:00 [kworker/1:2-device_link_wq]
root 62 2 0 08:50 ? 00:00:00 [kworker/1:3-rcu_gp]
root 63 2 0 08:50 ? 00:00:00 [kworker/1:4-rcu_gp]
root 64 2 0 08:50 ? 00:00:00 [kworker/R-raid5]
root 65 2 0 08:50 ? 00:00:00 [kworker/R-bch_b]
root 66 2 0 08:50 ? 00:00:00 [kworker/R-bcach]
root 67 2 0 08:50 ? 00:00:00 [kworker/R-bch_j]
root 68 2 0 08:50 ? 00:00:00 [kworker/u8:4-events_unbound
root 69 2 0 08:50 ? 00:00:00 [1904000.crypto-engine]
root 70 2 0 08:50 ? 00:00:00 [1904000.crypto-engine]
root 71 2 0 08:50 ? 00:00:00 [1904000.crypto-engine]
root 72 2 0 08:50 ? 00:00:00 [1904000.crypto-engine]
root 73 2 0 08:50 ? 00:00:00 [hwrng]
root 74 2 0 08:50 ? 00:00:00 [kworker/R-tls-s]
root 75 2 0 08:50 ? 00:00:00 [kworker/R-mld]
root 76 2 0 08:50 ? 00:00:00 [kworker/R-ipv6_]
root 77 2 0 08:50 ? 00:00:00 [kworker/2:1H-kblockd]
root 84 2 0 08:50 ? 00:00:00 [kworker/R-kstrp]
root 85 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 86 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 87 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 88 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 89 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 90 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 91 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 92 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 93 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 94 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 95 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 96 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 97 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 98 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 99 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 100 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 101 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 102 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 103 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 104 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 105 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 106 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 107 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 108 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 109 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 110 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 111 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 112 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 113 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 114 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 115 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 116 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 117 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 118 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 119 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 120 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 121 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 122 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 123 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 124 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 125 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 126 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 127 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 128 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 129 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 130 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 131 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 132 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 133 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 134 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 135 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 136 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 137 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 138 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 139 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 140 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 141 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 142 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 143 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 144 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 145 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 146 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 147 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 148 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 149 2 0 08:50 ? 00:00:00 [kworker/R-zswap]
root 150 2 0 08:50 ? 00:00:00 [kworker/u9:0]
root 151 2 0 08:50 ? 00:00:00 [kworker/0:2-events]
root 152 2 0 08:50 ? 00:00:00 [kworker/0:3-rcu_gp]
root 153 2 0 08:50 ? 00:00:00 [kworker/0:4-events]
root 154 2 0 08:50 ? 00:00:00 [irq/92-axp806]
root 155 2 0 08:50 ? 00:00:00 [irq/105-ths]
root 156 2 0 08:50 ? 00:00:00 [kworker/u8:5-events_unbound
root 157 2 0 08:50 ? 00:00:00 [kworker/u8:6-events_unbound
root 158 2 0 08:50 ? 00:00:00 [kworker/3:2-rcu_gp]
root 159 2 0 08:50 ? 00:00:00 [kworker/3:3-events]
root 160 2 0 08:50 ? 00:00:00 [irq/241-sunxi-mmc]
root 161 2 0 08:50 ? 00:00:00 [irq/242-sunxi-mmc]
root 162 2 0 08:50 ? 00:00:00 [irq/243-sunxi-mmc]
root 163 2 0 08:50 ? 00:00:00 [irq/244-6000000.hdmi]
root 164 2 0 08:50 ? 00:00:00 [card0-crtc0]
root 165 2 0 08:50 ? 00:00:00 [irq/148-4020000.mmc cd]
root 166 2 0 08:50 ? 00:00:00 [kworker/R-mmc_c]
root 167 2 0 08:50 ? 00:00:00 [kworker/3:1H-kblockd]
root 168 2 0 08:50 ? 00:00:00 [kworker/2:3-events]
root 169 2 0 08:50 ? 00:00:00 [kworker/u8:7-events_unbound
root 176 2 0 08:50 ? 00:00:00 [kworker/R-mmc_c]
root 178 2 0 08:50 ? 00:00:00 [kworker/1:1H-kblockd]
root 214 2 0 08:50 ? 00:00:00 [kworker/0:2H-mmc_complete]
root 215 2 0 08:50 ? 00:00:00 [kworker/0:3H]
root 216 2 0 08:50 ? 00:00:00 [kworker/1:2H-kblockd]
root 218 2 0 08:50 ? 00:00:00 [kworker/R-stmma]
root 235 1 3 08:50 ? 00:00:06 /usr/sbin/plymouthd --mode=b
root 255 2 0 08:50 ? 00:00:00 [jbd2/mmcblk0p5-8]
root 256 2 0 08:50 ? 00:00:00 [kworker/R-ext4-]
root 297 1 0 08:50 ? 00:00:00 /usr/lib/systemd/systemd-jou
root 309 2 0 08:50 ? 00:00:00 [kworker/3:2H]
root 311 1 0 08:50 ? 00:00:00 /usr/lib/systemd/systemd-use
root 336 2 0 08:50 ? 00:00:00 [psimon]
root 342 2 0 08:50 ? 00:00:00 [kworker/2:2H]
root 344 1 0 08:50 ? 00:00:00 /usr/lib/systemd/systemd-ude
root 348 2 0 08:50 ? 00:00:00 [psimon]
systemd+ 352 1 0 08:50 ? 00:00:00 /usr/lib/systemd/systemd-net
root 379 2 0 08:50 ? 00:00:00 [kworker/R-cfg80]
root 380 2 0 08:50 ? 00:00:00 [irq/252-panfrost-mmu]
root 381 2 0 08:50 ? 00:00:00 [irq/253-panfrost-job]
root 382 2 0 08:50 ? 00:00:00 [pan_js]
root 383 2 0 08:50 ? 00:00:00 [pan_js]
root 384 2 0 08:50 ? 00:00:00 [pan_js]
root 389 2 0 08:50 ? 00:00:00 [cec-dw_hdmi]
root 390 2 0 08:50 ? 00:00:00 [irq/244-dw-hdmi-cec]
root 392 2 0 08:50 ? 00:00:00 [rc0]
root 411 311 0 08:50 ? 00:00:00 systemd-userwork: waiting...
root 412 311 0 08:50 ? 00:00:00 systemd-userwork: waiting...
root 413 311 0 08:50 ? 00:00:00 systemd-userwork: waiting...
systemd+ 415 1 2 08:50 ? 00:00:04 /usr/lib/systemd/systemd-res
message+ 420 1 0 08:50 ? 00:00:00 /usr/bin/dbus-daemon --syste
root 422 1 0 08:50 ? 00:00:00 /usr/lib/systemd/systemd-log
ntp 427 1 0 08:50 ? 00:00:00 /usr/sbin/chronyd -u ntp -F
root 433 1 0 08:50 ? 00:00:00 /usr/sbin/NetworkManager --n
root 453 1 0 08:50 ? 00:00:00 sshd: /usr/sbin/sshd -D -e [
root 458 1 0 08:50 tty1 00:00:00 /sbin/agetty -o -p -- \u --n
root 459 1 0 08:50 ttyS0 00:00:00 /bin/login -p --
root 481 2 0 08:51 ? 00:00:00 [psimon]
root 483 1 0 08:51 ? 00:00:00 /usr/lib/systemd/systemd --u
root 484 483 0 08:51 ? 00:00:00 (sd-pam)
root 492 2 0 08:51 ? 00:00:00 [psimon]
root 495 459 0 08:51 ttyS0 00:00:00 -bash
root 506 495 99 08:53 ttyS0 00:00:00 ps -ef
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Gentoo on ARM
