KDOC 200: X windowのログを見る
この文書のステータス
- 作成
- 2024-07-20 貴島
- レビュー
- 2024-07-22 貴島
概要
X Window Systemアプリケーションをデバッグ、学習するために、ログを確認する。
xtrace -o output.log ./app
000:<:0001: 20: Request(55): CreateGC cid=0x05600001 drawable=0x00000773 values={foreground=0x00ffffff}
000:<:0002: 40: Request(1): CreateWindow depth=0x18 window=0x05600002 parent=0x00000773 x=-1000 y=-1000 width=1 height=1 border-width=0 class=InputOutput(0x0001) visual=0x00000021 value-list={override-redirect=true(0x01) event-mask=PropertyChange}
000:<:0003: 8: Request(8): MapWindow window=0x05600002
000:<:0004: 16: Request(98): QueryExtension name='XINERAMA'
000:>:0004:32: Reply to QueryExtension: present=true(0x01) major-opcode=141 first-event=0 first-error=0
このようにリクエスト、レスポンスする様子や値を確認できる。
また、システムのログを見るとおもしろい。
head /var/log/Xorg.0.log -n 50
[193692.808] X.Org X Server 1.21.1.4 X Protocol Version 11, Revision 0 [193692.808] Current Operating System: Linux orange-ThinkPad-X1-Carbon-Gen-10 5.15.0-105-generic #115-Ubuntu SMP Mon Apr 15 09:52:04 UTC 2024 x86_64 [193692.808] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-5.15.0-105-generic root=UUID=2ef9dd21-ea63-4656-8249-b9355b9d7052 ro quiet splash [193692.808] xorg-server 2:21.1.4-2ubuntu1.7~22.04.10 (For technical support please see http://www.ubuntu.com/support) [193692.808] Current version of pixman: 0.40.0 [193692.808] Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. [193692.808] Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. [193692.808] (==) Log file: "/var/log/Xorg.0.log", Time: Tue Jul 16 11:18:22 2024 [193692.808] (==) Using system config directory "/usr/share/X11/xorg.conf.d" [193692.808] (==) No Layout section. Using the first Screen section. [193692.808] (==) No screen section available. Using defaults. [193692.808] (**) |-->Screen "Default Screen Section" (0) [193692.808] (**) | |-->Monitor "<default monitor>" [193692.808] (==) No monitor specified for screen "Default Screen Section". Using a default monitor configuration. [193692.808] (==) Automatically adding devices [193692.808] (==) Automatically enabling devices [193692.808] (==) Automatically adding GPU devices [193692.808] (==) Automatically binding GPU devices [193692.808] (==) Max clients allowed: 256, resource mask: 0x1fffff [193692.808] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist. [193692.808] Entry deleted from font path. [193692.808] (WW) The directory "/usr/share/fonts/X11/100dpi/" does not exist. [193692.808] Entry deleted from font path. [193692.808] (WW) The directory "/usr/share/fonts/X11/75dpi/" does not exist. [193692.808] Entry deleted from font path. [193692.808] (WW) The directory "/usr/share/fonts/X11/100dpi" does not exist. [193692.808] Entry deleted from font path. [193692.808] (WW) The directory "/usr/share/fonts/X11/75dpi" does not exist. [193692.808] Entry deleted from font path. [193692.808] (==) FontPath set to: /usr/share/fonts/X11/misc, /usr/share/fonts/X11/Type1, built-ins [193692.808] (==) ModulePath set to "/usr/lib/xorg/modules" [193692.808] (II) The server relies on udev to provide the list of input devices. If no devices become available, reconfigure udev or disable AutoAddDevices. [193692.808] (II) Loader magic: 0x55f1ebf6f020 [193692.808] (II) Module ABI versions: [193692.808] X.Org ANSI C Emulation: 0.4 [193692.808] X.Org Video Driver: 25.2 [193692.808] X.Org XInput driver : 24.4 [193692.808] X.Org Server Extension : 10.0 [193692.809] (++) using VT number 7
tail /var/log/Xorg.0.log -n 50
[331536.041] (II) modeset(0): EDID vendor "AUO", prod id 53905 [331536.041] (II) modeset(0): Using hsync ranges from config file [331536.041] (II) modeset(0): Using vrefresh ranges from config file [331536.041] (II) modeset(0): Printing DDC gathered Modelines: [331536.041] (II) modeset(0): Modeline "1920x1200"x0.0 156.10 1920 1936 1952 2104 1200 1203 1217 1236 -hsync -vsync (74.2 kHz eP) [332036.859] (II) modeset(0): EDID vendor "AUO", prod id 53905 [332036.859] (II) modeset(0): Using hsync ranges from config file [332036.859] (II) modeset(0): Using vrefresh ranges from config file [332036.859] (II) modeset(0): Printing DDC gathered Modelines: [332036.859] (II) modeset(0): Modeline "1920x1200"x0.0 156.10 1920 1936 1952 2104 1200 1203 1217 1236 -hsync -vsync (74.2 kHz eP) [337606.169] (II) config/udev: Adding input device WH-1000XM3 (AVRCP) (/dev/input/event17) [337606.169] (**) WH-1000XM3 (AVRCP): Applying InputClass "libinput keyboard catchall" [337606.169] (II) Using input driver 'libinput' for 'WH-1000XM3 (AVRCP)' [337606.169] (**) WH-1000XM3 (AVRCP): always reports core events [337606.169] (**) Option "Device" "/dev/input/event17" [337606.169] (II) event17 - WH-1000XM3 (AVRCP): is tagged by udev as: Keyboard [337606.170] (II) event17 - WH-1000XM3 (AVRCP): device is a keyboard [337606.170] (II) event17 - WH-1000XM3 (AVRCP): device removed [337606.192] (**) Option "config_info" "udev:/sys/devices/virtual/input/input34/event17" [337606.192] (II) XINPUT: Adding extended input device "WH-1000XM3 (AVRCP)" (type: KEYBOARD, id 18) [337606.192] (**) Option "xkb_model" "pc105" [337606.192] (**) Option "xkb_layout" "jp" [337606.192] (WW) Option "xkb_variant" requires a string value [337606.192] (WW) Option "xkb_options" requires a string value [337606.194] (II) event17 - WH-1000XM3 (AVRCP): is tagged by udev as: Keyboard [337606.194] (II) event17 - WH-1000XM3 (AVRCP): device is a keyboard [344364.017] (II) event17 - WH-1000XM3 (AVRCP): device removed [344364.068] (II) config/udev: removing device WH-1000XM3 (AVRCP) [344364.071] (II) UnloadModule: "libinput" [345174.520] (II) modeset(0): EDID vendor "AUO", prod id 53905 [345174.520] (II) modeset(0): Using hsync ranges from config file [345174.520] (II) modeset(0): Using vrefresh ranges from config file [345174.520] (II) modeset(0): Printing DDC gathered Modelines: [345174.520] (II) modeset(0): Modeline "1920x1200"x0.0 156.10 1920 1936 1952 2104 1200 1203 1217 1236 -hsync -vsync (74.2 kHz eP) [362198.169] (II) config/udev: Adding input device WH-1000XM3 (AVRCP) (/dev/input/event17) [362198.169] (**) WH-1000XM3 (AVRCP): Applying InputClass "libinput keyboard catchall" [362198.169] (II) Using input driver 'libinput' for 'WH-1000XM3 (AVRCP)' [362198.169] (**) WH-1000XM3 (AVRCP): always reports core events [362198.169] (**) Option "Device" "/dev/input/event17" [362198.170] (II) event17 - WH-1000XM3 (AVRCP): is tagged by udev as: Keyboard [362198.170] (II) event17 - WH-1000XM3 (AVRCP): device is a keyboard [362198.170] (II) event17 - WH-1000XM3 (AVRCP): device removed [362198.204] (**) Option "config_info" "udev:/sys/devices/virtual/input/input35/event17" [362198.204] (II) XINPUT: Adding extended input device "WH-1000XM3 (AVRCP)" (type: KEYBOARD, id 18) [362198.204] (**) Option "xkb_model" "pc105" [362198.204] (**) Option "xkb_layout" "jp" [362198.204] (WW) Option "xkb_variant" requires a string value [362198.204] (WW) Option "xkb_options" requires a string value [362198.207] (II) event17 - WH-1000XM3 (AVRCP): is tagged by udev as: Keyboard [362198.207] (II) event17 - WH-1000XM3 (AVRCP): device is a keyboard
- 画面サイズ
1920x1200などが表示されていて何かしていることがわかる WH-1000XMは使っているワイヤレスヘッドホンの型番だ。これらの接続ログも出されているのがわかる
関連
- KDOC 201: スクリーンルーラーを作る。の過程で調べた