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From: Jan Beich <jbeich@FreeBSD.org>
To: Claudio Eichenberger <cei@yourshop.com>
Cc: x11@FreeBSD.org
Subject: Re: 1.17.4 worked, 1.18.4 flunks
References: <20170421195552.GA17803@yourshop.com>
Date: Fri, 21 Apr 2017 23:19:24 +0200
In-Reply-To: <20170421195552.GA17803@yourshop.com> (Claudio Eichenberger's
 message of "Fri, 21 Apr 2017 21:55:52 +0200")
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Claudio Eichenberger <cei@yourshop.com> writes:

> -(==) Using config file: "/etc/X11/xorg.conf"
> +(++) Using config file: "/root/xorg.conf.new"

Don't use Xorg -configure. Try xorg.conf(5) that contains *only* the following:

  Section "Device"
  	Identifier  "integrated_card"
  	Driver      "intel"
  	BusID       "pci:0:2:0"
  EndSection

> (--) PCI:*(0:0:2:0) 8086:2a42:1025:0143 rev 7, Mem @ 0xf0000000/4194304, 0xd0000000/268435456, I/O @ 0x00001800/8, BIOS @ 0x????????/65536
> (--) PCI: (0:0:2:1) 8086:2a43:1025:0143 rev 7, Mem @ 0xf0400000/1048576
> List of video drivers:
> 	ati
> 	mach64
> 	nv
> 	openchrome
> 	r128
> 	radeon
> 	scfb
> 	modesetting
> 	vesa
> 	intel
> (II) LoadModule: "ati"

Xserver tries to guess the correct driver but one of them crashes, aborting the loop.

> (**) modeset(0): claimed PCI slot 0@0:2:0
> (II) modeset(0): using default device
> (EE) 
> (EE) Backtrace:
> (EE) 0: /usr/local/bin/X (OsInit+0x38a) [0x5abfba]
> (EE) 1: /lib/libthr.so.3 (_pthread_sigmask+0x50d) [0x8025cdbbd]
> (EE) 2: /lib/libthr.so.3 (_pthread_getspecific+0xe9f) [0x8025cdacf]
> (EE) 3: ? (?+0xe9f) [0x7ffffffffea2]
> (EE) 4: ? (?+0xe9f) [0xe9f]
> (EE) 5: /usr/local/bin/X (InitOutput+0x11ea) [0x47faca]
> (EE) 6: /usr/local/bin/X (remove_fs_handlers+0x38b) [0x43b48b]
> (EE) 7: /usr/local/bin/X (_start+0x17f) [0x42506f]
> (EE) 8: ? (?+0x17f) [0x80083217f]

Xserver 1.19.* has some fixes for "modesetting" DDX. Not sure if it'd
help Gen4 hardware, so better stick to "intel" DDX that worked before.