Lines Matching refs:console

4 	The framebuffer console (fbcon), as its name implies, is a text
5 console running on top of the framebuffer device. It has the functionality of
6 any standard text console driver, such as the VGA console, with the added
9 	 In the x86 architecture, the framebuffer console is optional, and
13 	 What are the features of fbcon?  The framebuffer console supports
20 	The framebuffer console can be enabled by using your favorite kernel
41 framebuffer console.  Depending on the driver, you may get a blanked or
44 will still get a VGA console.
52 	 Usually, fbcon will automatically take over your console. The notable
58 	 Depending on the driver, you either get a standard console, or a
59 	 garbled display, as mentioned above.  To get a framebuffer console,
64 	 You get your standard console.  Once the driver is loaded with
65 	 'modprobe xxxfb', fbcon automatically takes over the console with
71 	 over the console.
75          The framebuffer console has several, largely unknown, boot options
98         which console. The value '0123' is a sequence that gets repeated until
111 	console.
113 	Later on, when you want to map the console the to the framebuffer
121 	console driver.
123 	NOTE: For x86 machines, the standard console is the VGA console which
125 	are controlled by the VGA console will be garbled.
129         This option changes the orientation angle of the console display. The
141 		rotate     - rotate the display of the active console
147 	NOTE: This is purely console rotation.  Any other applications that
149 	Actually, the underlying fb driver is totally ignorant of console
163 	be preserved until there actually is some text is output to the console.
168 Before going on to how to attach, detach and unload the framebuffer console, an
171 The console layer, as with most subsystems, needs a driver that interfaces with
172 the hardware. Thus, in a VGA console:
174 console ---> VGA driver ---> hardware.
177 from the console layer before unloading the driver.  The VGA driver cannot be
178 unloaded if it is still bound to the console layer. (See
179 Documentation/console/console.txt for more information).
181 This is more complicated in the case of the framebuffer console (fbcon),
182 because fbcon is an intermediate layer between the console and the drivers:
184 console ---> fbcon ---> fbdev drivers ---> hardware
187 be unloaded if it's bound to the console layer.
189 So to unload the fbdev drivers, one must first unbind fbcon from the console,
191 the console layer will automatically unbind framebuffer drivers from
195 So, how do we unbind fbcon from the console? Part of the answer is in
196 Documentation/console/console.txt. To summarize:
198 Echo a value to the bind file that represents the framebuffer console
201 echo 1 > sys/class/vtconsole/vtcon1/bind - attach framebuffer console to
202                                            console layer
203 echo 0 > sys/class/vtconsole/vtcon1/bind - detach framebuffer console from
204                                            console layer
206 If fbcon is detached from the console layer, your boot console driver (which is
245 automatically bind the console, fbcon and the drivers together. Unloading
247 console to bind fbcon.
254 Instead, vgacon will replace the default boot console with dummycon, and you
276 	echo <ID> > /sys/class/tty/console/bind
294 framebuffer console driver if you are on an X86 box: