Lines Matching refs:fbcon

4 	The framebuffer console (fbcon), as its name implies, is a text
13 	 What are the features of fbcon?  The framebuffer console supports
23 support statically, or 'm' for module support.  The module will be fbcon.
25 	In order for fbcon to activate, at least one framebuffer driver is
49 1. Driver and fbcon are compiled statically
51 	 Usually, fbcon will automatically take over your console. The notable
55 2. Driver is compiled statically, fbcon is compiled as a module
59 	 do a 'modprobe fbcon'.
61 3. Driver is compiled as a module, fbcon is compiled statically
64 	 'modprobe xxxfb', fbcon automatically takes over the console with
65 	 the possible exception of using the fbcon=map:n option. See below.
67 4. Driver and fbcon are compiled as a module.
69 	 You can load them in any order. Once both are loaded, fbcon will take
77 1. fbcon=font:<name>
86 2. fbcon=scrollback:<value>[k]
94 3. fbcon=map:<0123>
109 	available, fb0, adding fbcon=map:1 tells fbcon not to take over the
115 4. fbcon=vc:<n1>-<n2>
117 	This option tells fbcon to take over only a range of consoles as
126 4. fbcon=rotate:<n>
138 	 /sys/class/graphics/fbcon
166 This is more complicated in the case of the framebuffer console (fbcon),
167 because fbcon is an intermediate layer between the console and the drivers:
169 console ---> fbcon ---> fbdev drivers ---> hardware
171 The fbdev drivers cannot be unloaded if it's bound to fbcon, and fbcon cannot
174 So to unload the fbdev drivers, one must first unbind fbcon from the console,
175 then unbind the fbdev drivers from fbcon.  Fortunately, unbinding fbcon from
177 fbcon. Thus, there is no need to explicitly unbind the fbdev drivers from
178 fbcon.
180 So, how do we unbind fbcon from the console? Part of the answer is in
184 driver. So assuming vtcon1 represents fbcon, then:
191 If fbcon is detached from the console layer, your boot console driver (which is
193 restore VGA text mode for you.  With the rest, before detaching fbcon, you
211 4. If fbcon is compiled as a module, load fbcon by doing:
213        modprobe fbcon
215 5. Now to detach fbcon:
220 6. That's it, you're back to VGA mode. And if you compiled fbcon as a module,
221    you can unload it by 'rmmod fbcon'
223 7. To reattach fbcon:
227 8. Once fbcon is unbound, all drivers registered to the system will also
228 become unbound.  This means that fbcon and individual framebuffer drivers
229 can be unloaded or reloaded at will. Reloading the drivers or fbcon will
230 automatically bind the console, fbcon and the drivers together. Unloading
231 all the drivers without unloading fbcon will make it impossible for the
232 console to bind fbcon.
240 won't get any display after detaching fbcon. Your machine is still alive, so
246     a. Before detaching fbcon, do
251     b. Detach fbcon as in step 5.
253     c. Attach fbcon
260     a. Before detaching fbcon, do:
268     b. Detach fbcon as in step 5.
270     c. Attach fbcon:
283 # Unbind fbcon
309 # Bind fbcon