Dell Chromebook 5190 Owners Manual - Page 64

Table 15. Advanced help command continued, Command, Purpose, sound, beamforming <on|off &gt

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Table 15. Advanced help command (continued) Command p2p_update [enable | disable] rlz < status | enable | disable> rollback route [-n] [-6] set_apn [-n ] [-u ] [-p ] set_apn - c set_arpgw set_cellular_ppp [-u ] [-p ] set_cellular_ppp -c sound storage_status storage_test_1 storage_test_2 syslog tpcontrol{status | taptoclick [on|off] sensitivity [1-5] | set < value>} tpcontrol {syntp [on|off]} tracepath [-n] [/port] update_over_cellular [enable|disable] upload crashes Purpose Enables or disables the peer-to-peer (P2P) sharing of updates over the local network. This will both attempt to get updates from other peers in the network and shares the downloaded updates with them. Run this command without arguments to see the current state. Enables or disables RLZ. Attempts to roll back to the previous update cached on your system. Only available on non-stable channels and nonenterprise enrolled devices. Please note that this will power wash your device. Displays the routing tables. Sets the APN to use when connecting to the network specified by . If is not specified, use the network-id of the currently registered network. Clears the APN to be used, so that the default APN is used instead. Turns on the extra network state checking to make sure the default gateway is reachable. Sets the PPP username and/or password for an existing cellular connection. If neither -u nor -p is provided, this shows the existing PPP username for the cellular connection. Clears any existing PPP username and PPP password for an existing cellular connection. Low level sound configuration. Can be used to play/record audio samples and enable beam forming on Pixel. sound beamforming will enable/disable the feature. sound record [duration] will start recording. sound play plays the recorded audio samples Reads storage device SMART health status, vendor attributes, and error logs. Performs a short offline SMART test. Performs an extensive readability test. Logs a message to system log. Allows the user to manually adjust advanced touchpad settings. Traces the path/route to a network host. Enables or disables the auto updates over cellular networks. Run without arguments to see the current state. Uploads available crash reports to the crash server. wpa_debug [] [--help] [--list_valid_level] [-reset] xset m [acc_mult[/acc_div] [thr]] xset m default xset r rate [delay [rate]] xset r [keycode] < on|off > Sets the wpa_supplicant debugging level. Tweaks the mouse acceleration rate. Tweaks the autorepeat rates. The delay is the number of milliseconds before autorepeat starts. The rate is the number of repeats per second. Turns autorepeat on/off. If a keycode is specified, it affects only that key. If not specified, it affects global behavior. 64 Diagnostic and troubleshooting

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Table 15. Advanced help command (continued)
Command
Purpose
p2p_update
[enable | disable]
Enables or disables the peer-to-peer (P2P) sharing of updates
over the local network. This will both attempt to get updates
from other peers in the network and shares the downloaded
updates with them. Run this command without arguments to
see the current state.
rlz
< status | enable | disable>
Enables or disables RLZ.
rollback
Attempts to roll back to the previous update cached on
your system. Only available on non-stable channels and non-
enterprise enrolled devices. Please note that this will power
wash your device.
route
[-n] [-6]
Displays the routing tables.
set_apn
[-n <network-id>] [-u <username>] [-p
<password>] <apn>
Sets the APN to use when connecting to the network
specified by <network-id>. If <network-id> is not specified,
use the network-id of the currently registered network.
set_apn - c
Clears the APN to be used, so that the default APN is used
instead.
set_arpgw
<true | false>
Turns on the extra network state checking to make sure the
default gateway is reachable.
set_cellular_ppp
[-u <username>] [-p <password>]
Sets the PPP username and/or password for an existing
cellular connection. If neither -u nor -p is provided, this shows
the existing PPP username for the cellular connection.
set_cellular_ppp -c
Clears any existing PPP username and PPP password for an
existing cellular connection.
sound
<command> <argument>
Low level sound configuration. Can be used to play/record
audio samples and enable beam forming on Pixel.
sound
beamforming <on|off >
will enable/disable the feature.
sound record [duration]
will start recording.
sound play
<filename>
plays the recorded audio samples
storage_status
Reads storage device SMART health status, vendor attributes,
and error logs.
storage_test_1
Performs a short offline SMART test.
storage_test_2
Performs an extensive readability test.
syslog
<message>
Logs a message to system log.
tpcontrol
{status | taptoclick [on|off] sensitivity [1-5] | set
<property>< value>} tpcontrol {syntp [on|off]}
Allows the user to manually adjust advanced touchpad
settings.
tracepath
[-n] <destination>[/port]
Traces the path/route to a network host.
update_over_cellular
[enable|disable]
Enables or disables the auto updates over cellular networks.
Run without arguments to see the current state.
upload crashes
Uploads available crash reports to the crash server.
wpa_debug
[<debug_level>] [--help] [--list_valid_level] [--
reset]
Sets the wpa_supplicant debugging level.
xset m
[acc_mult[/acc_div] [thr]] xset m default
Tweaks the mouse acceleration rate.
xset r rate
[delay [rate]]
Tweaks the autorepeat rates. The delay is the number of
milliseconds before autorepeat starts. The rate is the number
of repeats per second.
xset r
[keycode] < on|off >
Turns autorepeat on/off. If a keycode is specified, it affects
only that key. If not specified, it affects global behavior.
64
Diagnostic and troubleshooting