Bug#1004946: Cannot hold down backspace to delete password
Control: forwarded 1004946 https://gitlab.freedesktop.org/xorg/lib/libxi/-/issues/13 On Sun 2022-02-13 08:26:24 -0800, Jamie Zawinski wrote: >> Why did you switch to it? Or am I misunderstanding that you did? > > For the new security model. No other way to increase the privilege separation. Thanks for these explanations, I think I understand the situation better now. I've forwarded the concern upstream at the link above. Maybe the libXi devs will be able to address the problem, or at least propose an alternate solution that lets XScreenSaver retain the privilege separation and the user-friendly key repeat functionality. --dkg signature.asc Description: PGP signature
Bug#1004946: Cannot hold down backspace to delete password
> Why did you switch to it? Or am I misunderstanding that you did? For the new security model. No other way to increase the privilege separation. -- Jamie Zawinski https://www.jwz.org/ https://www.dnalounge.com/
Bug#1004946: Cannot hold down backspace to delete password
Regarding the following, written by "Jamie Zawinski" on 2022-02-12 at 09:55 Uhr -0800: Also this is far from the only problem with XInput2's keyboard event handling. See the comments in xscreensaver/driver/xinput.c for a laundry list of its bugs. Why did you switch to it? Or am I misunderstanding that you did? -- .''`. martin f. krafft @martinkrafft : :' : proud Debian developer `. `'` http://people.debian.org/~madduck `- Debian - when you have better things to do than fixing systems "i feel sorry for people who don't drink. when they wake up in the morning, that's as good as they're going to feel all day." -- frank sinatra
Bug#1004946: Cannot hold down backspace to delete password
When an X11 client reads X11-core events of type KeyPress and KeyRelease, a held-down key will result in a series of synthetic release/press events to make it look like the key was pressed multiple times. The initial delay and repeat rate are configured in the X server by xset and/or xkbset. Also, not all keys auto-repeat. When that same X11 client reads XInput2-extension events of type XI_RawKeyPress and XI_RawKeyRelease, a held-and-released key results in exactly 2 events, no matter how long it was held. The XInput2 server extension ignores the server auto-repeat settings. It is unreasonable to expect an X11 client to hack auto-repeat by itself. This is a server-side configuration issue. Also this is far from the only problem with XInput2's keyboard event handling. See the comments in xscreensaver/driver/xinput.c for a laundry list of its bugs. -- Jamie Zawinski https://www.jwz.org/ https://www.dnalounge.com/
Bug#1004946: Cannot hold down backspace to delete password
On Fri 2022-02-11 09:16:09 -0800, Jamie Zawinski wrote: > On Feb 11, 2022, at 8:51 AM, Daniel Kahn Gillmor wrote: >> >> If the regression is caused by changes in how XInput/XInput2 behave, >> then maybe this problem should be addressed in that package. I'm >> reassigning this report there and marking that it affects xscreensaver. > > I have no reason to believe that XInput2 has not always behaved that way. You > are noticing it now because XScreenSaver only began using XInput2 as of 6.x. > > Stating the problem/annoyance more concisely: > > XInput2 does not send auto-repeat press/release events in the same manner as > XNextEvent. Thanks for the prompt feedback, Jamie! If you're saying that XInput2 *cannot* send auto-repeat press/release events, and no tool that uses XInput2 can handle auto-repeating keys, that seems like a problem with XInput2 -- hence the transfer of the bug. If you're saying that XScreenSaver is not interpreting the signal of a held-down backspace key, then it seems like a bug in XScreenSaver to me. If neither of those is the case, then i'm not understanding the conversation on this bug report, only observing that the problem for users still remains. Regards, --dkg signature.asc Description: PGP signature
Bug#1004946: Cannot hold down backspace to delete password
On Feb 11, 2022, at 8:51 AM, Daniel Kahn Gillmor wrote: > > If the regression is caused by changes in how XInput/XInput2 behave, > then maybe this problem should be addressed in that package. I'm > reassigning this report there and marking that it affects xscreensaver. I have no reason to believe that XInput2 has not always behaved that way. You are noticing it now because XScreenSaver only began using XInput2 as of 6.x. Stating the problem/annoyance more concisely: XInput2 does not send auto-repeat press/release events in the same manner as XNextEvent. -- Jamie Zawinski https://www.jwz.org/ https://www.dnalounge.com/
Bug#1004946: Cannot hold down backspace to delete password
Control: reopen 1004946 Control: reassign 1004946 libxi6 2:1.8-1 Control: affects 1004946 + xscreensaver On Fri 2022-02-04 07:29:55 +0100, martin f krafft wrote: > Package: xscreensaver > Version: 6.02+dfsg1-2 > Severity: normal > > If I know I mistyped the password, I am used to holding down > backspace to erase all characters, effectively making use of the key > repeat. This stopped working with version 6, and now holding down > the key only ever removes a single character. On Thu 2022-02-03 22:59:34 -0800, Jamie Zawinski wrote: > For some reason, the XInput2 extension doesn't auto-repeat certain > keys that used to auto-repeat when read the "old" way. Unfortunately > there's nothing I can do about this. I process only the keystrokes > that I receive. > > However you can use the traditional keystrokes ^U and ^X to clear the > whole line. As i understand it, XInput2 is provided by libxi6, from the libxi source package. This is a significant regression in user experience, and definitely something confusing for users who see the backspace key and don't understand why it's not repeating as expected. Ctrl-U or Ctrl-X might be an acceptable workaround for weirdos like the three of us, but it is decidedly user-unfriendly for a screensaver to work this way. Holding down backspace to clear screwed up keystrokes is an incredibly common usage pattern for password entry fields. If the regression is caused by changes in how XInput/XInput2 behave, then maybe this problem should be addressed in that package. I'm reassigning this report there and marking that it affects xscreensaver. --dkg signature.asc Description: PGP signature
Bug#1004946: Cannot hold down backspace to delete password
For some reason, the XInput2 extension doesn't auto-repeat certain keys that used to auto-repeat when read the "old" way. Unfortunately there's nothing I can do about this. I process only the keystrokes that I receive. However you can use the traditional keystrokes ^U and ^X to clear the whole line. -- Jamie Zawinski https://www.jwz.org/ https://www.dnalounge.com/
Bug#1004946: Cannot hold down backspace to delete password
Package: xscreensaver Version: 6.02+dfsg1-2 Severity: normal If I know I mistyped the password, I am used to holding down backspace to erase all characters, effectively making use of the key repeat. This stopped working with version 6, and now holding down the key only ever removes a single character. -- System Information: Debian Release: bookworm/sid APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 5.15.0-3-amd64 (SMP w/8 CPU threads) Kernel taint flags: TAINT_WARN, TAINT_FIRMWARE_WORKAROUND Locale: LANG=en_NZ, LC_CTYPE=en_NZ.UTF-8 (charmap=UTF-8), LANGUAGE=en_NZ:en Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages xscreensaver depends on: ii init-system-helpers 1.61 ii libatk1.0-0 2.36.0-3 ii libc62.33-5 ii libcrypt11:4.4.27-1.1 ii libglib2.0-0 2.70.3-1 ii libgtk2.0-0 2.24.33-2 ii libpam0g 1.4.0-11 ii libpango-1.0-0 1.50.3+ds1-6 ii libsystemd0 250.3-2 ii libx11-6 2:1.7.2-2+b1 ii libxext6 2:1.3.4-1 ii libxft2 2.3.2-2 ii libxi6 2:1.8-1 ii libxinerama1 2:1.1.4-2 ii libxml2 2.9.12+dfsg-5+b1 ii libxrandr2 2:1.5.2-1 ii libxt6 1:1.2.0-1 ii libxxf86vm1 1:1.1.4-1+b2 ii xscreensaver-data6.02+dfsg1-2 Versions of packages xscreensaver recommends: ii gsfonts-x11 0.28 ii libjpeg-turbo-progs 1:2.1.2-1 ii perl 5.32.1-6 ii wamerican [wordlist] 2020.12.07-2 ii xfonts-100dpi 1:1.0.4+nmu1.1 Versions of packages xscreensaver suggests: ii chromium [www-browser] 97.0.4692.99-1 ii elinks [www-browser] 0.13.2-1+b2 ii firefox [www-browser]96.0.3-1 ii fortune-mod [fortune]1:1.99.1-7.1 pn gdm3 | kdm-gdmcompat ii lynx [www-browser] 2.9.0dev.10-1 pn qcam | streamer ii w3m [www-browser]0.5.3+git20210102-6 pn xdaliclock pn xfishtank pn xscreensaver-data-extra ii xscreensaver-gl 6.02+dfsg1-2 pn xscreensaver-gl-extra -- no debconf information -- .''`. martin f. krafft @martinkrafft : :' : proud Debian developer `. `'` http://people.debian.org/~madduck `- Debian - when you have better things to do than fixing systems
