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yasunari@vl:~$ tail -f /var/log/messages : : Mar 11 11:47:15 vl kernel: usb 1-1: new high speed USB device using ehci_marvell and address 2 Mar 11 11:47:15 vl kernel: usb 1-1: configuration #1 chosen from 1 choice Mar 11 11:47:15 vl kernel: udlfb: DisplayLink GX-DVI_U2B - serial #201210913457 Mar 11 11:47:15 vl kernel: udlfb: vid_17e9&pid_0223&rev_0106 driver's dlfb_data struct at c9be1000 Mar 11 11:47:15 vl kernel: udlfb: console enable=1 Mar 11 11:47:15 vl kernel: udlfb: fb_defio enable=1 Mar 11 11:47:15 vl kernel: udlfb: shadow enable=1 Mar 11 11:47:15 vl kernel: udlfb: vendor descriptor length:1b data:1b 5f 01 0019 05 00 01 03 00 04 Mar 11 11:47:15 vl kernel: udlfb: udlfb: DL chip limited to 2080000 pixel modes Mar 11 11:47:15 vl kernel: udlfb: allocated 4 65024 byte urbs Mar 11 11:47:15 vl kernel: Display is GTF capable Mar 11 11:47:15 vl kernel: udlfb: 1440x900 valid mode Mar 11 11:47:15 vl kernel: udlfb: 720x400 valid mode Mar 11 11:47:15 vl kernel: udlfb: 640x480 valid mode Mar 11 11:47:15 vl kernel: udlfb: 640x480 valid mode Mar 11 11:47:15 vl kernel: udlfb: 800x600 valid mode Mar 11 11:47:15 vl kernel: udlfb: 800x600 valid mode Mar 11 11:47:15 vl kernel: udlfb: 1024x768 valid mode Mar 11 11:47:15 vl kernel: udlfb: 1024x768 valid mode Mar 11 11:47:15 vl kernel: udlfb: 1024x768 valid mode Mar 11 11:47:15 vl kernel: udlfb: 1280x1024 valid mode Mar 11 11:47:15 vl kernel: udlfb: 1280x1024 valid mode Mar 11 11:47:15 vl kernel: udlfb: 1440x1440 valid mode Mar 11 11:47:15 vl kernel: udlfb: udlfb: Reallocating framebuffer. Addresses will change! Mar 11 11:47:15 vl kernel: udlfb: 1440x900 valid mode Mar 11 11:47:15 vl kernel: udlfb: set_par mode 1440x900 Mar 11 11:47:15 vl kernel: udlfb: DisplayLink USB device /dev/fb0 attached. 1440x900 resolution. Using 5064K framebuffer memory問題なく認識。液晶ディスプレイは全面紫になる
yasunari@vl:~$ startx X: user not authorized to run the X server, aborting. ^Cgiving up. xinit: No such file or directory (errno 2): unable to connect to X server xinit: No such process (errno 3): unexpected signal 2. yasunari@vl:~$X を起動するのに、ユーザ認証が必要？
X: user not authorized to run the X server, aborting.は、 debian-users の過去ログによると /etc/X11/Xwrapper.config に原因があるらしい。
man Xwrapper.config して allowed_users の項目を見てみると、
yasunari@vl:~$ cat /etc/X11/Xwrapper.config cat: /etc/X11/Xwrapper.config: Permission denied yasunari@vl:~$ sudo !! sudo cat /etc/X11/Xwrapper.config # Xwrapper.config (Debian X Window System server wrapper configuration file) # # This file was generated by the post-installation script of the x11-common # package using values from the debconf database. # # See the Xwrapper.config(5) manual page for more information. # # This file is automatically updated on upgrades of the x11-common package # *only* if it has not been modified since the last upgrade of that package. # # If you have edited this file but would like it to be automatically updated # again, run the following command as root: # dpkg-reconfigure x11-common allowed_users=console yasunari@vl:~$確かに allowed_users=console では起動できなさそう。
# If you have edited this file but would like it to be automatically updated # again, run the following command as root: # dpkg-reconfigure x11-commonとのことで、 debian-users の過去ログの通り dpkg-reconfigure x11-common を実行する。
yasunari@vl:~$ sudo dpkg-reconfigure x11-common Package configuration lqqqqqqqqqqqqqqqqqqqqqqqqu Configuring x11-common tqqqqqqqqqqqqqqqqqqqqqqqqqk x Because the X server runs with superuser privileges, it may be unwise to x x permit any user to start it, for security reasons. On the other hand, x x it is even more unwise to run general-purpose X client programs as root, x x which is what may happen if only root is permitted to start the X x x server. A good compromise is to permit the X server to be started only x x by users logged in to one of the virtual consoles. x x x x Users allowed to start the X server: x x x x Root Only x x Console Users Only x x Anybody x x x x x x <Ok> x x x mqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqjAnybody を選択して OK
/etc/X11/Xwrapper.config は
yasunari@vl:~$ sudo cat /etc/X11/Xwrapper.config # Xwrapper.config (Debian X Window System server wrapper configuration file) # # This file was generated by the post-installation script of the x11-common # package using values from the debconf database. # # See the Xwrapper.config(5) manual page for more information. # # This file is automatically updated on upgrades of the x11-common package # *only* if it has not been modified since the last upgrade of that package. # # If you have edited this file but would like it to be automatically updated # again, run the following command as root: # dpkg-reconfigure x11-common allowed_users=anybody yasunari@vl:~$allowed_users=anybody に変更された。
誰にでも起動できるようになるので危険といえば危険だけれど、 私一人しか使わない／使えないマシンだし。。。
