Hello Thomas, it appears commit 4bdf22803f9a41329694e0c3c82189635dccdcd0 breaks disabling colors using the documented mechanism of touching /etc/terminal-colors.d/dmesg.disable. See below for a user report.
On Sun, Jan 26, 2025 at 07:19:09PM +0100, Axel wrote: > Package: util-linux > Version: 2.40.4-1 > > Running dmesg after upgrading to trixie started showing color. The manpage > mentions creating /etc/terminal-colors.d/disable which should disable colors > for all. Creating the also mentioned /etc/terminal-colors.d/dmesg.disable > doesn't disable color output also. I had /etc/terminal-colors.d/disable > configured which did disable colors on -stable. >From what I can tell, the new rc = -ENOENT in colors_readdir introduced in 4bdf22803f9a41329694e0c3c82189635dccdcd0 bubbles up to colors_init: int rc = colors_read_configuration(cc); // calls colors_readdir, now returns -2 if (rc) cc->mode = UL_COLORMODE_DEFAULT; else { Evaluating color scores is skipped, effectively ignoring the "disable" file. Could you please take a look? Reverting 4bdf22803f9a41329694e0c3c82189635dccdcd0 fixes the problem for me. Debug output from TERMINAL_COLORS_DEBUG=0xffff ./dmesg | 321357: termcolors: CONF: terminal is ready (supports 256 colors) | 321357: termcolors: CONF: reading dir: '/root/.config/terminal-colors.d' | 321357: termcolors: CONF: reading dir: '/etc/terminal-colors.d' | 321357: termcolors: CONF: item 'dmesg.disable': score=21 [cur: 0, name(5): dmesg.disable, term(0): (null)] | 321357: termcolors: CONF: setting 'disable' from 0 -to-> 21 | Colors: | utilname = 'dmesg' | termname = 'xterm-256color' | scheme file = '(null)' | mode = auto | has_colors = 1 | disabled = 0 | configured = 1 | cs configured = 0 | | score disable = 21 | score enable = 0 | score scheme = 0 After reverting 4bdf22803f9a41329694e0c3c82189635dccdcd0: | 321318: termcolors: CONF: terminal is ready (supports 256 colors) | 321318: termcolors: CONF: reading dir: '/root/.config/terminal-colors.d' | 321318: termcolors: CONF: reading dir: '/etc/terminal-colors.d' | 321318: termcolors: CONF: item 'dmesg.disable': score=21 [cur: 0, name(5): dmesg.disable, term(0): (null)] | 321318: termcolors: CONF: setting 'disable' from 0 -to-> 21 | Colors: | utilname = 'dmesg' | termname = 'xterm-256color' | scheme file = '(null)' | mode = never | has_colors = 0 | disabled = 0 | configured = 1 | cs configured = 0 | | score disable = 21 | score enable = 0 | score scheme = 0 Thanks, Chris