Changeset df5c5e0


Ignore:
Timestamp:
02/21/2021 03:34:50 PM (7 months ago)
Author:
Xi Ruoyao <xry111@…>
Branches:
10.1, 11.0, qt5new, trunk, xry111/git-date, xry111/git-date-for-trunk, xry111/git-date-test
Children:
3df8ea47
Parents:
42326ce
Message:

xorg testing: add sysrq as a precaution if Xorg hangs

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@24254 af4574ff-66df-0310-9fd7-8a98e5e911e0

File:
1 edited

Legend:

Unmodified
Added
Removed
  • x/installing/xorg-config.xml

    r42326ce rdf5c5e0  
    3939      </para>
    4040    </note>
     41
     42    <warning>
     43      <para>
     44        If Xorg hangs for some reason (for example, lacking a proper
     45        input driver), the system may stop responsing to any user input.
     46        As a precaution, you can enable a magic <keycap>SysRq</keycap> key
     47        before testing Xorg.  As the
     48        <systemitem class="username">root</systemitem> user, issue:
     49      </para>
     50
     51<screen><userinput>echo 4 > /proc/sys/kernel/sysrq</userinput></screen>
     52
     53      <para>
     54        Then if Xorg hangs, it's possible to use
     55        <keycombo>
     56          <keycap>Alt</keycap>
     57          <keycap>SysRq</keycap>
     58          <keycap>R</keycap>
     59        </keycombo>
     60        to reset the keyboard mode.  Now it should be able to use
     61        <keycombo>
     62          <keycap>Ctrl</keycap>
     63          <keycap>Alt</keycap>
     64          <keycap>Fx</keycap>
     65        </keycombo>
     66        (replace x with a VT number) to switch to another VT.
     67                If it works, login and kill Xorg using command line in the new VT.
     68      </para>
     69    </warning>
    4170
    4271    <para>
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