On Sun, 2023-04-02 at 10:14 -0700, stan via users wrote: > On Sun, 2 Apr 2023 17:03:33 +0200 > Wolfgang Pfeiffer <r...@gmx.net> wrote: > > > On Sat, Apr 01, 2023 at 06:10:50PM +0100, Patrick O'Callaghan > > wrote: > > > I have a Logitech MX series wireless keyboard, and no keys are > > > labelled as SysRq or PrtScr. Is there a way to configure a > > > different > > > sequence for the magic SysRq function? The man pages are not > > > helpful. > > > > Here's a very old kernel sources page that explains the sysrq > > routine, > > and I think it was one of the pages version that helped me a lot: > > > > https://mirrors.edge.kernel.org/pub/linux/kernel/people/marcelo/linux-2.4/Documentation/sysrq.txt > > > > Here, it seems, is the latest one: > > https://www.kernel.org/doc/html/latest/admin-guide/sysrq.html > > Thanks for posting these. I used a mnemonic to remember what to > press, > 'busier' in reverse, 'reisub'. But, after reading the documentation, > I > think I only need to press 'sub'. Unless there is a runaway process. > > > Looks like you first need to identify your print/sysrq key - it > > might > > be a combo of (on my keyboard) <Fn>-<Print> or <Alt>-<Print>. I use > > xev for finding it. > > When I use xev, and press Print Screen, I get the following output, > FocusOut event, serial 48, synthetic NO, window 0x7200001, > mode NotifyGrab, detail NotifyAncestor > > FocusIn event, serial 48, synthetic NO, window 0x7200001, > mode NotifyUngrab, detail NotifyAncestor > > KeymapNotify event, serial 48, synthetic NO, window 0x0, > keys: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 > 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 > which doesn't seem to provide the keycode. > > When I press the Print Screen key in showkey -s, I get the following > output. > 0xe0 0x2a 0xe0 0x37 > 0xe0 0xaa 0xe0 0xb7 > None of those resolves to 99, hex 0x63. > When I run without the -s, using the default. > I then get 99 as the output. Option -k is the default, keycodes. > So, I think using showkey without an option in a console is the > correct > method.
That also gives me 99 twice (for press/release) when I hit the "camera" key (plus the strange browser tab of a search for Ksnapshot). poc _______________________________________________ users mailing list -- users@lists.fedoraproject.org To unsubscribe send an email to users-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@lists.fedoraproject.org Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
