Re: kern/60140: NetBSD 11.0-RC2 boots to black screen on Thinkpad X240 more often than not

["Robert Elz via gnats" <gnats-admin%NetBSD.org@localhost>]

The following reply was made to PR kern/60140; it has been noted by GNATS.

From: Robert Elz <kre%munnari.OZ.AU@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/60140: NetBSD 11.0-RC2 boots to black screen on Thinkpad X240 more often than not
Date: Sun, 29 Mar 2026 22:09:43 +0700

     Date:        Sat, 28 Mar 2026 22:40:02 +0000 (UTC)
     From:        "opensauce04%gmail.com@localhost via gnats" <gnats-admin%NetBSD.org@localhost>
     Message-ID:  <20260328224002.2FBE61A923E%mollari.NetBSD.org@localhost>
 
   |  Could someone update that, and also maybe update the PR title to reflect 
   |  the charging thing if possible?
 
 I have done that.
 
 When you say "boots to black screen" do you mean doesn't boot at all?
 
 The boot process should start writing some (usually green) text to
 the monitor, using the firmware to access the display) - and then
 eventually take over the display (you can often see the font change)
 and continue writing more configuration info (you will have seen all
 of this on the successful boots).
 
 If none of that happens, the boot isn't being successful at all (probably
 the kernel is being loaded, those are the "writes some numbers", but after
 that something hangs, or similar).
 
 If it reaches the point where the video should switch, and the screen
 just goes black instead, then that's an entirely different class of problem.
 In that case, if you can (from elsewhere - even from a phone) see if you
 can access the system (can you ping it) - if so, that would indicate it
 is running OK, and just the video is not functioning.   If it isn't responding
 then the boot failed somehow.
 
 Which of these is happening would be useful info to find the right person
 to help you work out what the issue really is (all I can say about that now
 is that I will not be that person).
 
 kre