Hi,
could anyone explain me some internals of the X server especially the
moment of shutting down.
I try to install the Debian armel distro with X11 on the Lenovo Tab2
a7-10f tablet without using the vnc, the XServer XSDL or any other
remote desktop solutions.
Inspired by the tutorials:
https://blog.hamal.in/?p=15
https://www.youtube.com/watch?v=t2yj8QYoBhA&list=PLcUid3OP_4OX9q80EIEAWsolQV5cr6RQx&index=4
I successfully stopped the media/zygote/surfaceflinger services and in
the chroot environment I started the xserver. The first problem was that
there was no tty0 available (supposed the kernel was compiling without
CONFIG_VT=y).
After linking /dev/null with tty0
/
//ln -s /dev/null /dev/tty0/
and restarting the xserver, there was a complaint about the
inappropriate ioctl for device.
With this option, the server starts without problems:
/X -sharevts vt0/
but, the display remains black.
Next I do as follows:
* startlxde (no screen output),
* stop lxde (no screen output),
* stop xserver - on the tablet display the last frame from the desktop
session appears.
Same behaviour when I do cat /dev/urandom > /dev/fb0 with the running
xserver and then stopping them (gray pixels shows up).
So my questions:
* Where exactly, in this particular example, the X sends the 'last'
frame when it shuts down? I mean, is this a file in /dev/ folder?
* Is it possible to start the xserver and redirect the "graphic
stream" directly to that place so I could see the working desktop
environment on the tablet (without access to the tty0 )?
X.Org X Server 1.20.1
X Protocol Version 11, Revision 0
[ 8516.256] Build Operating System: Linux 4.9.0-7-armmp-lpae armv7l Debian
[ 8516.257] Current Operating System: Linux localhost 3.4.67 #1 SMP
PREEMPT Frii
Dec 11 22:20:29 CST 2015 armv7l
[ 8516.257] Kernel command line: console=ttyMT0,921600n1 vmalloc=496M
slub_max__
order=0 lcm=1-nt51012_hd720_dsi_vdo fps=8941 vram=14680064 emmc_id=21
ddr_id=0 bb
ootprof.pl_t=2053 bootprof.lk_t=1578 printk.disable_uart=1 boot_reason=4 ~Y
[ 8516.258] Build Date: 17 August 2018 08:05:00PM
[ 8516.258] xorg-server 2:1.20.1-1 (https://www.debian.org/support)
[ 8516.258] Current version of pixman: 0.34.0
_______________________________________________
xorg@lists.x.org: X.Org support
Archives: http://lists.freedesktop.org/archives/xorg
Info: https://lists.x.org/mailman/listinfo/xorg
Your subscription address: %(user_address)s
