Re: kern/49495: serial console prevents use of X with drmkms

[Patrick Welche <prlw1%cam.ac.uk@localhost>]

The following reply was made to PR kern/49495; it has been noted by GNATS.

From: Patrick Welche <prlw1%cam.ac.uk@localhost>
To: matthew green <mrg%eterna.com.au@localhost>
Cc: kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
	netbsd-bugs%netbsd.org@localhost, gnats-bugs%NetBSD.org@localhost
Subject: Re: kern/49495: serial console prevents use of X with drmkms
Date: Fri, 26 Dec 2014 11:03:13 +0000

 On Tue, Dec 23, 2014 at 06:36:33AM +1100, matthew green wrote:
 > that gives me a login: prompt on the serial console as well as
 > 4 virtual terminal logins on the display and then X runs on the
 > 5th...
 
 Just for the record, I also have
 
 :0 local /usr/X11R7/bin/X :0 -noretro vt08
 
 in /etc/X11/xdm/Xservers - which is why I have screen 7 - -
 
 > this setup works for me with drmkms, but i've only got radeon
 > PCI cards for testing here.
 
 Would I be right in guessing that if the above were wrong, X without
 the serial console wouldn't work? (It works without the serial console)
 
 > is this i386 or amd64?  can you confirm that you only have one
 > wsdisplay (wsdisplay0) and that wskbd0 and wsmux1 connect to it?
 
 That is on amd64 with
 
 $ dmesg | grep ws
 wskbd0 at pckbd0: console keyboard
 wsdisplay0 at intelfb0 kbdmux 1: console (default, vt100 emulation), using wskbd0
 wsmux1: connecting to wsdisplay0
 spdmem0: 12 rows, 13 cols, 8 log. banks, 2 phys. banks, 1.500ns cycle time
 spdmem1: 12 rows, 13 cols, 8 log. banks, 2 phys. banks, 1.500ns cycle time
 wsmouse0 at ums0 mux 0
 wsdisplay0: screen 1 added (default, vt100 emulation)
 wsdisplay0: screen 2 added (default, vt100 emulation)
 wsdisplay0: screen 3 added (default, vt100 emulation)
 wsdisplay0: screen 7 added (default, vt100 emulation)
 
 Also:
 i915drmkms0 at pci0 dev 2 function 0: Intel Ivy Bridge Integrated Graphics Device (rev. 0x09)
 
 
 
 
 Now on a different machine: a Dell OptiPlex GX620 (as opposed to GX260)
 running 25 Dec -current/amd64 with an additional radeon card, X works
 with the serial console => this must be an intel specific problem.