在 Ubuntu 18.04 上，我通过
chsh -s `which fish`
我已经安装了 Maillspring 和 Visual Studio Code 快照应用程序，它们安装得很好，最初可以从仪表板启动，但在登录和注销后，它们都不再出现在仪表板中。
在软件商店中搜索它们会显示已安装，我可以从那里启动它们。
为什么默认外壳对此很重要？
linux支持usb-c吗？到目前为止，似乎只有电源功能起作用，我的手机一插上就会开始充电。
我想知道 Ubuntu 是否支持 USB-C - 根据我的经验，当我连接手机时，只有充电功能才有效。
是否需要额外的程序来启用它？
如果它根本不可用，是否有一个好地方可以跟踪开发的进展？
更新到 ubuntu 15.10 后，conky 显示窗口边框和阴影。
有什么办法可以绕过它吗？
下面是主题的内容：
#==============================================================================
# conkyrc_seamod
# Date : 05/02/2012
# Author : SeaJey
# Version : v0.1
# License : Distributed under the terms of GNU GPL version 2 or later
#
# This version is a modification of conkyrc_lunatico wich is modification of conkyrc_orange
#
# conkyrc_orange: http://gnome-look.org/content/show.php?content=137503&forumpage=0
# conkyrc_lunatico: http://gnome-look.org/content/show.php?content=142884
#==============================================================================
background yes
update_interval 1
cpu_avg_samples 1
net_avg_samples 2
temperature_unit celsius
double_buffer yes
no_buffers yes
text_buffer_size 2048
gap_x 40
gap_y 70
minimum_size 300 900
maximum_width 350
own_window yes
own_window_type normal
own_window_class conky
own_window_transparent no
own_window_argb_visual yes
own_window_colour 000000
own_window_argb_value 102
own_window_hints undecorate,sticky,skip_taskbar,skip_pager,below
border_inner_margin 0
border_outer_margin 0
alignment top_right
draw_shades no
draw_outline no
draw_borders no
draw_graph_borders no
override_utf8_locale yes
use_xft yes
xftfont caviar dreams:size=10
xftalpha 0.5
uppercase no
# Defining colors
default_color FFFFFF
# Shades of Gray
color1 DDDDDD
color2 AAAAAA
color3 888888
# Orange
color4 EF5A29
# Green
color5 77B753
# Loading lua script for drawning rings
lua_load ./seamod_rings.lua
lua_draw_hook_post main
## System information using conky capabilities
# Header with base system info
own_window_argb_value 102
own_window_colour 000000
TEXT
${font Ubuntu:size=10,weight:bold}${color4}SYSTEM ${hr 2}
${offset 15}${font Ubuntu:size=10,weight:normal}${color1}$sysname $kernel
${offset 15}${font Ubuntu:size=10,weight:normal}${color1}$nodename
${offset 15}${font Ubuntu:size=10,weight:normal}${color1}Uptime: $uptime
# Showing CPU Graph
${voffset 20}
${offset 120}${cpugraph 40,183 666666 666666}${voffset -25}
${offset 90}${font Ubuntu:size=10,weight:bold}${color5}CPU
# Showing TOP 5 CPU-consumers
${offset 105}${font Ubuntu:size=10,weight:normal}${color4}${top name 1}${alignr}${top cpu 1}%
${offset 105}${font Ubuntu:size=10,weight:normal}${color1}${top name 2}${alignr}${top cpu 2}%
${offset 105}${font Ubuntu:size=10,weight:normal}${color2}${top name 3}${alignr}${top cpu 3}%
${offset 105}${font Ubuntu:size=10,weight:normal}${color3}${top name 4}${alignr}${top cpu 4}%
${offset 105}${font Ubuntu:size=10,weight:normal}${color3}${top name 5}${alignr}${top cpu 5}%
#Showing memory part with TOP 5
${voffset 40}
${offset 90}${font Ubuntu:size=10,weight:bold}${color5}MEM
${offset 105}${font Ubuntu:size=10,weight:normal}${color4}${top_mem name 1}${alignr}${top_mem mem 1}%
${offset 105}${font Ubuntu:size=10,weight:normal}${color1}${top_mem name 2}${alignr}${top_mem mem 2}%
${offset 105}${font Ubuntu:size=10,weight:normal}${color2}${top_mem name 3}${alignr}${top_mem mem 3}%
${offset 105}${font Ubuntu:size=10,weight:normal}${color3}${top_mem name 4}${alignr}${top_mem mem 4}%
${offset 105}${font Ubuntu:size=10,weight:normal}${color3}${top_mem name 4}${alignr}${top_mem mem 5}%
# Showing disk partitions: root, home and Data
${voffset 28}
${offset 90}${font Ubuntu:size=10,weight:bold}${color5}DISKS
${offset 120}${diskiograph 33,183 666666 666666}${voffset -30}
${voffset 20}
${offset 15}${font Ubuntu:size=9,weight:bold}${color1}Free: ${font Ubuntu:size=9,weight:normal}${fs_free /}${alignr}${font Ubuntu:size=9,weight:bold}Used: ${font Ubuntu:size=9,weight:normal}${fs_used /}
${offset 15}${font Ubuntu:size=9,weight:bold}${color1}Free: ${font Ubuntu:size=9,weight:normal}${fs_free /home}${alignr}${font Ubuntu:size=9,weight:bold}Used: ${font Ubuntu:size=9,weight:normal}${fs_used /home}
${offset 15}${font Ubuntu:size=9,weight:bold}${color1}Free: ${font Ubuntu:size=9,weight:normal}${fs_free /media/Data}${alignr}${font Ubuntu:size=9,weight:bold}Used: ${font Ubuntu:size=9,weight:normal}${fs_used /media/Data}
# Network data (my desktop have only LAN). ETHERNET ring is mostly useless but looks pretty, main info is in the graphs
${voffset 43}
${offset 90}${font Ubuntu:size=10,weight:bold}${color5}ETHERNET
${voffset 40}
${offset 15}${color1}${font Ubuntu:size=9,weight:bold}Up: ${alignr}${font Ubuntu:size=9,weight:normal}$color2${upspeed eth0} / ${totalup}
${offset 15}${upspeedgraph eth0 40,285 4B1B0C FF5C2B 100 -l}
${offset 15}${color1}${font Ubuntu:size=9,weight:bold}Down: ${alignr}${font Ubuntu:size=9,weight:normal}$color2${downspeed eth0} / ${totaldown}
${offset 15}${downspeedgraph eth0 40,285 324D23 77B753 100 -l}
${color4}${hr 2}
以下是 seamod_rings.lua 的内容：
--==============================================================================
-- seamod_rings.lua
--
-- Date : 05/02/2012
-- Author : SeaJey
-- Version : v0.1
-- License : Distributed under the terms of GNU GPL version 2 or later
--
-- This version is a modification of lunatico_rings.lua wich is modification of conky_orange.lua
--
-- conky_orange.lua: http://gnome-look.org/content/show.php?content=137503&forumpage=0
-- lunatico_rings.lua: http://gnome-look.org/content/show.php?content=142884
--==============================================================================
require 'cairo'
--------------------------------------------------------------------------------
-- gauge DATA
gauge = {
{
name='cpu', arg='cpu0', max_value=100,
x=70, y=130,
graph_radius=54,
graph_thickness=5,
graph_start_angle=180,
graph_unit_angle=2.7, graph_unit_thickness=2.7,
graph_bg_colour=0xffffff, graph_bg_alpha=0.1,
graph_fg_colour=0xFFFFFF, graph_fg_alpha=0.3,
hand_fg_colour=0xEF5A29, hand_fg_alpha=1.0,
txt_radius=64,
txt_weight=0, txt_size=9.0,
txt_fg_colour=0xEF5A29, txt_fg_alpha=1.0,
graduation_radius=28,
graduation_thickness=0, graduation_mark_thickness=1,
graduation_unit_angle=27,
graduation_fg_colour=0xFFFFFF, graduation_fg_alpha=0.3,
caption='',
caption_weight=1, caption_size=9.0,
caption_fg_colour=0xFFFFFF, caption_fg_alpha=0.3,
},
{
name='cpu', arg='cpu1', max_value=100,
x=70, y=130,
graph_radius=48,
graph_thickness=5,
graph_start_angle=180,
graph_unit_angle=2.7, graph_unit_thickness=2.7,
graph_bg_colour=0xffffff, graph_bg_alpha=0.1,
graph_fg_colour=0xFFFFFF, graph_fg_alpha=0.3,
hand_fg_colour=0xEF5A29, hand_fg_alpha=1.0,
txt_radius=40,
txt_weight=0, txt_size=9.0,
txt_fg_colour=0xEF5A29, txt_fg_alpha=1.0,
graduation_radius=28,
graduation_thickness=0, graduation_mark_thickness=1,
graduation_unit_angle=27,
graduation_fg_colour=0xFFFFFF, graduation_fg_alpha=0.3,
caption='',
caption_weight=1, caption_size=9.0,
caption_fg_colour=0xFFFFFF, caption_fg_alpha=0.3,
},
{
name='cpu', arg='cpu2', max_value=100,
x=70, y=130,
graph_radius=20,
graph_thickness=5,
graph_start_angle=180,
graph_unit_angle=2.7, graph_unit_thickness=2.7,
graph_bg_colour=0xffffff, graph_bg_alpha=0.1,
graph_fg_colour=0xFFFFFF, graph_fg_alpha=0.3,
hand_fg_colour=0xEF5A29, hand_fg_alpha=1.0,
txt_radius=30,
txt_weight=0, txt_size=9.0,
txt_fg_colour=0xEF5A29, txt_fg_alpha=1.0,
graduation_radius=28,
graduation_thickness=0, graduation_mark_thickness=1,
graduation_unit_angle=27,
graduation_fg_colour=0xFFFFFF, graduation_fg_alpha=0.3,
caption='',
caption_weight=1, caption_size=9.0,
caption_fg_colour=0xFFFFFF, caption_fg_alpha=0.3,
},
{
name='cpu', arg='cpu3', max_value=100,
x=70, y=130,
graph_radius=14,
graph_thickness=5,
graph_start_angle=180,
graph_unit_angle=2.7, graph_unit_thickness=2.7,
graph_bg_colour=0xffffff, graph_bg_alpha=0.1,
graph_fg_colour=0xFFFFFF, graph_fg_alpha=0.3,
hand_fg_colour=0xEF5A29, hand_fg_alpha=1.0,
txt_radius=4,
txt_weight=0, txt_size=9.0,
txt_fg_colour=0xEF5A29, txt_fg_alpha=1.0,
graduation_radius=28,
graduation_thickness=0, graduation_mark_thickness=1,
graduation_unit_angle=27,
graduation_fg_colour=0xFFFFFF, graduation_fg_alpha=0.3,
caption='',
caption_weight=1, caption_size=9.0,
caption_fg_colour=0xFFFFFF, caption_fg_alpha=0.3,
},
{
name='memperc', arg='', max_value=100,
x=70, y=300,
graph_radius=54,
graph_thickness=10,
graph_start_angle=180,
graph_unit_angle=2.7, graph_unit_thickness=2.7,
graph_bg_colour=0xffffff, graph_bg_alpha=0.1,
graph_fg_colour=0xFFFFFF, graph_fg_alpha=0.3,
hand_fg_colour=0xEF5A29, hand_fg_alpha=1.0,
txt_radius=42,
txt_weight=0, txt_size=9.0,
txt_fg_colour=0xEF5A29, txt_fg_alpha=1.0,
graduation_radius=23,
graduation_thickness=0, graduation_mark_thickness=2,
graduation_unit_angle=27,
graduation_fg_colour=0xFFFFFF, graduation_fg_alpha=0.5,
caption='',
caption_weight=1, caption_size=10.0,
caption_fg_colour=0xFFFFFF, caption_fg_alpha=0.3,
},
{
name='fs_used_perc', arg='/media/Data', max_value=100,
x=70, y=470,
graph_radius=54,
graph_thickness=7,
graph_start_angle=180,
graph_unit_angle=2.7, graph_unit_thickness=2.7,
graph_bg_colour=0xffffff, graph_bg_alpha=0.1,
graph_fg_colour=0xFFFFFF, graph_fg_alpha=0.3,
hand_fg_colour=0xEF5A29, hand_fg_alpha=1.0,
txt_radius=64,
txt_weight=0, txt_size=9.0,
txt_fg_colour=0xEF5A29, txt_fg_alpha=1.0,
graduation_radius=23,
graduation_thickness=0, graduation_mark_thickness=2,
graduation_unit_angle=27,
graduation_fg_colour=0xFFFFFF, graduation_fg_alpha=0.3,
caption='Data',
caption_weight=1, caption_size=12.0,
caption_fg_colour=0xFFFFFF, caption_fg_alpha=0.5,
},
{
name='fs_used_perc', arg='/home/', max_value=100,
x=70, y=470,
graph_radius=42,
graph_thickness=7,
graph_start_angle=180,
graph_unit_angle=2.7, graph_unit_thickness=2.7,
graph_bg_colour=0xffffff, graph_bg_alpha=0.1,
graph_fg_colour=0xFFFFFF, graph_fg_alpha=0.3,
hand_fg_colour=0xEF5A29, hand_fg_alpha=1.0,
txt_radius=32,
txt_weight=0, txt_size=9.0,
txt_fg_colour=0xEF5A29, txt_fg_alpha=1.0,
graduation_radius=23,
graduation_thickness=0, graduation_mark_thickness=2,
graduation_unit_angle=27,
graduation_fg_colour=0xFFFFFF, graduation_fg_alpha=0.3,
caption='Home',
caption_weight=1, caption_size=12.0,
caption_fg_colour=0xFFFFFF, caption_fg_alpha=0.5,
},
{
name='fs_used_perc', arg='/', max_value=100,
x=70, y=470,
graph_radius=30,
graph_thickness=7,
graph_start_angle=180,
graph_unit_angle=2.7, graph_unit_thickness=2.7,
graph_bg_colour=0xffffff, graph_bg_alpha=0.1,
graph_fg_colour=0xFFFFFF, graph_fg_alpha=0.3,
hand_fg_colour=0xEF5A29, hand_fg_alpha=1.0,
txt_radius=22,
txt_weight=0, txt_size=9.0,
txt_fg_colour=0xEF5A29, txt_fg_alpha=1.0,
graduation_radius=23,
graduation_thickness=0, graduation_mark_thickness=2,
graduation_unit_angle=27,
graduation_fg_colour=0xFFFFFF, graduation_fg_alpha=0.3,
caption='Root',
caption_weight=1, caption_size=12.0,
caption_fg_colour=0xFFFFFF, caption_fg_alpha=0.5,
},
{
name='downspeedf', arg='eth0', max_value=100,
x=70, y=660,
graph_radius=54,
graph_thickness=7,
graph_start_angle=180,
graph_unit_angle=2.7, graph_unit_thickness=2.7,
graph_bg_colour=0xffffff, graph_bg_alpha=0.1,
graph_fg_colour=0xFFFFFF, graph_fg_alpha=0.3,
hand_fg_colour=0xEF5A29, hand_fg_alpha=0,
txt_radius=64,
txt_weight=0, txt_size=9.0,
txt_fg_colour=0xEF5A29, txt_fg_alpha=1.0,
graduation_radius=28,
graduation_thickness=0, graduation_mark_thickness=1,
graduation_unit_angle=27,
graduation_fg_colour=0xFFFFFF, graduation_fg_alpha=0.3,
caption='Down',
caption_weight=1, caption_size=12.0,
caption_fg_colour=0xFFFFFF, caption_fg_alpha=0.5,
},
{
name='upspeedf', arg='eth0', max_value=100,
x=70, y=660,
graph_radius=42,
graph_thickness=7,
graph_start_angle=180,
graph_unit_angle=2.7, graph_unit_thickness=2.7,
graph_bg_colour=0xffffff, graph_bg_alpha=0.1,
graph_fg_colour=0xFFFFFF, graph_fg_alpha=0.3,
hand_fg_colour=0xEF5A29, hand_fg_alpha=0,
txt_radius=30,
txt_weight=0, txt_size=9.0,
txt_fg_colour=0xEF5A29, txt_fg_alpha=1.0,
graduation_radius=28,
graduation_thickness=0, graduation_mark_thickness=1,
graduation_unit_angle=27,
graduation_fg_colour=0xFFFFFF, graduation_fg_alpha=0.3,
caption='Up',
caption_weight=1, caption_size=12.0,
caption_fg_colour=0xFFFFFF, caption_fg_alpha=0.5,
},
}
-------------------------------------------------------------------------------
-- rgb_to_r_g_b
-- converts color in hexa to decimal
--
function rgb_to_r_g_b(colour, alpha)
return ((colour / 0x10000) % 0x100) / 255., ((colour / 0x100) % 0x100) / 255., (colour % 0x100) / 255., alpha
end
-------------------------------------------------------------------------------
-- angle_to_position
-- convert degree to rad and rotate (0 degree is top/north)
--
function angle_to_position(start_angle, current_angle)
local pos = current_angle + start_angle
return ( ( pos * (2 * math.pi / 360) ) - (math.pi / 2) )
end
-------------------------------------------------------------------------------
-- draw_gauge_ring
-- displays gauges
--
function draw_gauge_ring(display, data, value)
local max_value = data['max_value']
local x, y = data['x'], data['y']
local graph_radius = data['graph_radius']
local graph_thickness, graph_unit_thickness = data['graph_thickness'], data['graph_unit_thickness']
local graph_start_angle = data['graph_start_angle']
local graph_unit_angle = data['graph_unit_angle']
local graph_bg_colour, graph_bg_alpha = data['graph_bg_colour'], data['graph_bg_alpha']
local graph_fg_colour, graph_fg_alpha = data['graph_fg_colour'], data['graph_fg_alpha']
local hand_fg_colour, hand_fg_alpha = data['hand_fg_colour'], data['hand_fg_alpha']
local graph_end_angle = (max_value * graph_unit_angle) % 360
-- background ring
cairo_arc(display, x, y, graph_radius, angle_to_position(graph_start_angle, 0), angle_to_position(graph_start_angle, graph_end_angle))
cairo_set_source_rgba(display, rgb_to_r_g_b(graph_bg_colour, graph_bg_alpha))
cairo_set_line_width(display, graph_thickness)
cairo_stroke(display)
-- arc of value
local val = value % (max_value + 1)
local start_arc = 0
local stop_arc = 0
local i = 1
while i <= val do
start_arc = (graph_unit_angle * i) - graph_unit_thickness
stop_arc = (graph_unit_angle * i)
cairo_arc(display, x, y, graph_radius, angle_to_position(graph_start_angle, start_arc), angle_to_position(graph_start_angle, stop_arc))
cairo_set_source_rgba(display, rgb_to_r_g_b(graph_fg_colour, graph_fg_alpha))
cairo_stroke(display)
i = i + 1
end
local angle = start_arc
-- hand
start_arc = (graph_unit_angle * val) - (graph_unit_thickness * 2)
stop_arc = (graph_unit_angle * val)
cairo_arc(display, x, y, graph_radius, angle_to_position(graph_start_angle, start_arc), angle_to_position(graph_start_angle, stop_arc))
cairo_set_source_rgba(display, rgb_to_r_g_b(hand_fg_colour, hand_fg_alpha))
cairo_stroke(display)
-- graduations marks
local graduation_radius = data['graduation_radius']
local graduation_thickness, graduation_mark_thickness = data['graduation_thickness'], data['graduation_mark_thickness']
local graduation_unit_angle = data['graduation_unit_angle']
local graduation_fg_colour, graduation_fg_alpha = data['graduation_fg_colour'], data['graduation_fg_alpha']
if graduation_radius > 0 and graduation_thickness > 0 and graduation_unit_angle > 0 then
local nb_graduation = graph_end_angle / graduation_unit_angle
local i = 0
while i < nb_graduation do
cairo_set_line_width(display, graduation_thickness)
start_arc = (graduation_unit_angle * i) - (graduation_mark_thickness / 2)
stop_arc = (graduation_unit_angle * i) + (graduation_mark_thickness / 2)
cairo_arc(display, x, y, graduation_radius, angle_to_position(graph_start_angle, start_arc), angle_to_position(graph_start_angle, stop_arc))
cairo_set_source_rgba(display,rgb_to_r_g_b(graduation_fg_colour,graduation_fg_alpha))
cairo_stroke(display)
cairo_set_line_width(display, graph_thickness)
i = i + 1
end
end
-- text
local txt_radius = data['txt_radius']
local txt_weight, txt_size = data['txt_weight'], data['txt_size']
local txt_fg_colour, txt_fg_alpha = data['txt_fg_colour'], data['txt_fg_alpha']
local movex = txt_radius * math.cos(angle_to_position(graph_start_angle, angle))
local movey = txt_radius * math.sin(angle_to_position(graph_start_angle, angle))
cairo_select_font_face (display, "ubuntu", CAIRO_FONT_SLANT_NORMAL, txt_weight)
cairo_set_font_size (display, txt_size)
cairo_set_source_rgba (display, rgb_to_r_g_b(txt_fg_colour, txt_fg_alpha))
cairo_move_to (display, x + movex - (txt_size / 2), y + movey + 3)
cairo_show_text (display, value)
cairo_stroke (display)
-- caption
local caption = data['caption']
local caption_weight, caption_size = data['caption_weight'], data['caption_size']
local caption_fg_colour, caption_fg_alpha = data['caption_fg_colour'], data['caption_fg_alpha']
local tox = graph_radius * (math.cos((graph_start_angle * 2 * math.pi / 360)-(math.pi/2)))
local toy = graph_radius * (math.sin((graph_start_angle * 2 * math.pi / 360)-(math.pi/2)))
cairo_select_font_face (display, "ubuntu", CAIRO_FONT_SLANT_NORMAL, caption_weight);
cairo_set_font_size (display, caption_size)
cairo_set_source_rgba (display, rgb_to_r_g_b(caption_fg_colour, caption_fg_alpha))
cairo_move_to (display, x + tox + 5, y + toy + 1)
-- bad hack but not enough time !
if graph_start_angle < 105 then
cairo_move_to (display, x + tox - 30, y + toy + 1)
end
cairo_show_text (display, caption)
cairo_stroke (display)
end
-------------------------------------------------------------------------------
-- go_gauge_rings
-- loads data and displays gauges
--
function go_gauge_rings(display)
local function load_gauge_rings(display, data)
local str, value = '', 0
str = string.format('${%s %s}',data['name'], data['arg'])
str = conky_parse(str)
value = tonumber(str)
draw_gauge_ring(display, data, value)
end
for i in pairs(gauge) do
load_gauge_rings(display, gauge[i])
end
end
-------------------------------------------------------------------------------
-- MAIN
function conky_main()
if conky_window == nil then
return
end
local cs = cairo_xlib_surface_create(conky_window.display, conky_window.drawable, conky_window.visual, conky_window.width, conky_window.height)
local display = cairo_create(cs)
local updates = conky_parse('${updates}')
update_num = tonumber(updates)
if update_num > 5 then
go_gauge_rings(display)
end
cairo_surface_destroy(cs)
cairo_destroy(display)
end
它的另外两个问题是它作为一个图标出现在泊坞窗中并且它也只停留在一个屏幕上。