kernel-config: Drop FB

In Linux 6.6 DRM_FBDEV_EMULATION no longer depends on FB, so we no
longer need to select FB (tested in a QEMU VM).

But if DRM is selected, we must select both DRM_FBDEV_EMULATION and
FRAMEBUFFER_CONSOLE or we'll see only blank screen.  And now
FRAMEBUFFER_CONSOLE is not selected by default, be warned!!

chapter10/kernel.xml

@@ -273,16 +273,18 @@
       </varlistentry>
 
       <varlistentry>
-        <term><parameter>Framebuffer Console support</parameter></term>
+        <term>
+          <parameter>
+            Enable legacy fbdev support for your modesetting driver
+          </parameter> and
+          <parameter>Framebuffer Console support</parameter>
+        </term>
         <listitem>
-          <para>This is needed to display the Linux console on a frame
+          <para>These are needed to display the Linux console on a
-          buffer device.  To allow the kernel to print debug messages at an
+          GPU driven by a DRI (Direct Rendering Infrastructure) driver.
-          early boot stage, it shouldn't be built as a kernel module
+          If <option>CONFIG_DRM</option> (Direct Rendering Manager) is
-          unless an initramfs will be used. And, if
+          enabled, you should enable these two options as well or you'll see
-          <option>CONFIG_DRM</option> (Direct Rendering Manager) is enabled,
+          a blank screen once the DRI driver is loaded.</para>
-          it's likely <option>CONFIG_DRM_FBDEV_EMULATION</option> (Enable
-          legacy fbdev support for your modesetting driver) should be
-          enabled as well.</para>
         </listitem>
       </varlistentry>
 

chapter10/kernel/systemd.toml

@@ -13,9 +13,7 @@ STACKPROTECTOR_STRONG='*'
 UEVENT_HELPER=' '
 DEVTMPFS='*'
 DEVTMPFS_MOUNT='*'
-FB='*'
+DRM=' *M'
-FRAMEBUFFER_CONSOLE='*'
-
 AUDIT=' '
 NET='*'
 INET='*'
@@ -28,3 +26,11 @@ TMPFS='*'
 TMPFS_POSIX_ACL='*'
 
 revision='systemd'
+
+[DRM_FBDEV_EMULATION]
+value = ' *'
+comment = 'If [DRM] is selected as * or M, this must be selected'
+
+[FRAMEBUFFER_CONSOLE]
+value = ' *'
+comment = 'If [DRM] is selected as * or M, this must be selected'

chapter10/kernel/systemd.xml

@@ -41,10 +41,14 @@
   <emphasis role='blue'>F</emphasis>irmware Drivers ---&gt;
     [*] <emphasis role='blue'>E</emphasis>xport DMI identification via sysfs to userspace                 [DMIID]
   <emphasis role='blue'>G</emphasis>raphics support ---&gt;
-    <emphasis role='blue'>F</emphasis>rame buffer Devices ---&gt;
+    &lt; /*/M&gt; <emphasis role='blue'>D</emphasis>irect Rendering Manager (XFree86 4.1.0 and higher DRI support) ---&gt;
-      &lt;*&gt; <emphasis role='blue'>S</emphasis>upport for frame buffer device drivers ---&gt;                      [FB]
+                                                                      ...  [DRM]
+    # If [DRM] is selected as * or M, this must be selected:
+    [ /*]   <emphasis role='blue'>E</emphasis>nable legacy fbdev support for your modesetting driver
+                                                      ...  [DRM_FBDEV_EMULATION]
     <emphasis role='blue'>C</emphasis>onsole display driver support ---&gt;
-      [*] <emphasis role='blue'>F</emphasis>ramebuffer Console support                      [FRAMEBUFFER_CONSOLE]
+      # If [DRM] is selected as * or M, this must be selected:
+      [ /*] <emphasis role='blue'>F</emphasis>ramebuffer Console support                    [FRAMEBUFFER_CONSOLE]
 
 <emphasis role='blue'>F</emphasis>ile systems ---&gt;
   [*] <emphasis role='blue'>I</emphasis>notify support for userspace                               [INOTIFY_USER]

chapter10/kernel/sysv.toml

@@ -12,7 +12,14 @@ STACKPROTECTOR_STRONG='*'
 UEVENT_HELPER=' '
 DEVTMPFS='*'
 DEVTMPFS_MOUNT='*'
-FB='*'
+DRM=' *M'
-FRAMEBUFFER_CONSOLE='*'
 
 revision='sysv'
+
+[DRM_FBDEV_EMULATION]
+value = ' *'
+comment = 'If [DRM] is selected as * or M, this must be selected'
+
+[FRAMEBUFFER_CONSOLE]
+value = ' *'
+comment = 'If [DRM] is selected as * or M, this must be selected'

chapter10/kernel/sysv.xml

@@ -29,7 +29,11 @@
     [*]   <emphasis role='blue'>A</emphasis>utomount devtmpfs at /dev, after the kernel mounted the rootfs
                                                            ...  [DEVTMPFS_MOUNT]
   <emphasis role='blue'>G</emphasis>raphics support ---&gt;
-    <emphasis role='blue'>F</emphasis>rame buffer Devices ---&gt;
+    &lt; /*/M&gt; <emphasis role='blue'>D</emphasis>irect Rendering Manager (XFree86 4.1.0 and higher DRI support) ---&gt;
-      &lt;*&gt; <emphasis role='blue'>S</emphasis>upport for frame buffer device drivers ---&gt;                      [FB]
+                                                                      ...  [DRM]
+    # If [DRM] is selected as * or M, this must be selected:
+    [ /*]   <emphasis role='blue'>E</emphasis>nable legacy fbdev support for your modesetting driver
+                                                      ...  [DRM_FBDEV_EMULATION]
     <emphasis role='blue'>C</emphasis>onsole display driver support ---&gt;
-      [*] <emphasis role='blue'>F</emphasis>ramebuffer Console support                      [FRAMEBUFFER_CONSOLE]</screen>
+      # If [DRM] is selected as * or M, this must be selected:
+      [ /*] <emphasis role='blue'>F</emphasis>ramebuffer Console support                    [FRAMEBUFFER_CONSOLE]</screen>