From owner-freebsd-bugs@freebsd.org Tue Oct 20 10:37:54 2015 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 89666A18AF4 for ; Tue, 20 Oct 2015 10:37:54 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 5CB22F63 for ; Tue, 20 Oct 2015 10:37:54 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id t9KAbsxL091117 for ; Tue, 20 Oct 2015 10:37:54 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 203889] MacBook UGA issues at login prompt. Date: Tue, 20 Oct 2015 10:37:54 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 11.0-CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: dor.bsd@fastmail.fm X-Bugzilla-Status: New X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Oct 2015 10:37:54 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203889 Bug ID: 203889 Summary: MacBook UGA issues at login prompt. Product: Base System Version: 11.0-CURRENT Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: dor.bsd@fastmail.fm This bug is probably related to bug #202730. I've recently been playing with FreeBSD 11-CURRENT on a 2009 MacBook Pro, since the work in #202730 allowed me to UEFI boot on that machine. Everything was fine for a while. However, when the machine is now booted, everything is OK and output is fine until the screen is cleared for the login prompt (does it reset the graphics mode here?), at which time it looks like the kernel has forgotten what the "stride" is. This issue started after I put the machine into S3 sleep by closing the lid. After I woke the machine the screen was blank and I had to reboot (pushed power button for clean shutdown since nothing was displayed). After that, the login prompt would always look like the stride was broken again. Rebooting/powering down and booting an older FreeBSD 11 kernel all exhibit the same issue. Perhaps the UGA/UEFI/framebuffer are stuck in a strange state that isn't cleared on boot? I haven't yet tried detaching the battery from the MBP to let it truly power down. Please let me know if there are more details that I can provide (there probably are). I should be able to SSH into the machine to examine it in its broken state. Cheers, -- You are receiving this mail because: You are the assignee for the bug.