home user users composed on 2024-10-12 13:35 (UTC-0600):
> Felix Miata wrote:
>> I believe what is happening to you often happens on several of my faster
>> machines.
>> The following represents evidence of what happens here using KDM or TDM and
>> Xorg/X11:
>> # egrep 'dev/dr\|Xorg.0.' /var/log/Xorg.0.*
>> /var/log/Xorg.0.log:[ 19.936] (==) Log file: "/var/log/Xorg.0.log", Time:
>> Sun Sep 29 15:29:38 2024
>> /var/log/Xorg.0.log:[ 19.938] (II) xfree86: Adding drm device
>> (/dev/dri/card1)
>> /var/log/Xorg.0.log:[ 19.974] (II) modeset(0): using drv /dev/dri/card1
>> /var/log/Xorg.0.log.old:[ 4.892] (==) Log file: "/var/log/Xorg.0.log",
>> Time: Sun Sep 29 15:29:23 2024
>> /var/log/Xorg.0.log.old:[ 4.910] (EE) open /dev/dri/card0: No such file
>> or directory
>> /var/log/Xorg.0.log.old:[ 4.910] (EE) open /dev/dri/card0: No such file
>> or directory
>> /var/log/Xorg.0.log.old:[ 4.910] (EE) Please also check the log file at
>> "/var/log/Xorg.0.log" for additional information.
>> #
>> What this shows is that KMS had not yet succeeded to provide KMS services, so
>> /dev/dri/cardX did not yet exist, before the DM tried to start. After about
>> 15 seconds, the DM tried again, and succeeded.
>> What I suspect is that on your system, GDM isn't configured to automatically
>> retry, so you get no GDM until you start it manually.
>> I've yet to determine how to ensure the DM doesn't try to start before KMS
>> has been made ready.
>> You may be able to get similar data as I get grepping Xorg.0.lo* by seeking
>> equivalent data from your journal.
> Is this what you mean?...
> -bash.1[~]: journalctl -b | grep Xorg.0.lo*
> Oct 12 12:33:34 coyote /usr/libexec/gdm-x-session[1407]: (--) Log file
> renamed from "/var/lib/gdm/.local/share/xorg/Xorg.pid-1407.log" to
> "/var/lib/gdm/.local/share/xorg/Xorg.0.log"
> Oct 12 12:33:34 coyote /usr/libexec/gdm-x-session[1407]: (==) Log file:
> "/var/lib/gdm/.local/share/xorg/Xorg.0.log", Time: Sat Oct 12 12:33:34 2024
> -bash.2[~]:
Those two appear to be about the same process. The absence of more like it after
some seconds suggests there is no automatic retry after a short wait as is the
case here; thus you are left at a shell prompt instead of at a running GDM.
> Actually, I have been seeing multiple tries at the smae thing in logs and
> when watching a boot. I figured similar things - trying b before it's ready,
> and trying b again.
Try showing us input/output from:
systemd-analyze critical-chain
--
Evolution as taught in public schools is, like religion,
based on faith, not based on science.
Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
Felix Miata
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