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: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/49495: serial console prevents use of X with drmkms
Date: Fri, 9 Jan 2015 16:07:28 +0000

 Just tried a simple experiment on the pineview of PR 49285:
 
 boot debug kernel with cons=pc
 boot debug kernel with cons=com0
 diff /var/run/dmesg.boot
 
 Slightly trimmed output is:
 
 @@ -93,7 +92,7 @@
  WARNING: module error: vfs load failed for `acpiverbose', error 45
  pckbd0 at pckbc1 (kbd slot)
  pckbc1: using irq 1 for kbd slot
 -wskbd0 at pckbd0: console keyboard
 +wskbd0 at pckbd0 mux 1
  pms0 at pckbc1 (aux slot)
  pms0: synaptics_probe: Not synaptics.
  pckbc1: using irq 12 for aux slot
 @@ -270,7 +269,7 @@
  DRM debug in drm_framebuffer_reference: FB ID: 39
  intelfb0 at i915drmkms0
  intelfb0: WARNING: power management not supported
 -DRM debug in intelfb_create: allocated 1920x1080 fb: 0x00030000, bo 0xfffffe8043b058c0
 +DRM debug in intelfb_create: allocated 1920x1080 fb: 0x00030000, bo 0xfffffe8043ac68c0
  i915drmkms0: info: registered panic notifier
  intelfb0: framebuffer at 0xffff800024b8b000, size 1920x1080, depth 32, stride 7680
  DRM debug in intel_crtc_cursor_set: cursor off
 @@ -386,11 +385,14 @@
  DRM debug in drm_framebuffer_reference: FB ID: 39
  DRM debug in drm_framebuffer_unreference: FB ID: 39
  DRM debug in drm_framebuffer_reference: FB ID: 39
 -wsdisplay0 at intelfb0 kbdmux 1: console (default, vt100 emulation), using wskbd0
 +wsdisplay0 at intelfb0 kbdmux 1
  wsmux1: connecting to wsdisplay0
 +wskbd0: connecting to wsdisplay0
 +genfb0 at pci0 dev 2 function 1WARNING: module error: vfs load failed for `pciverbose', error 45
  WARNING: module error: vfs load failed for `pciverbose', error 45
 -WARNING: module error: vfs load failed for `pciverbose', error 45
 -vendor 8086 product a002 (miscellaneous display, revision 0x02) at pci0 dev 2 function 1 not configured
 +: vendor 8086 product a002 (rev. 0x02)
 +no width property
 +genfb0: not configured by firmware
  hdaudio0 at pci0 dev 27 function 0: HD Audio Controller
  hdaudio0: interrupting at ioapic0 pin 16
  hdafg0 at hdaudio0 vendor 0x10EC product 0x0662 nid 0x01WARNING: module error: vfs load failed for `hdaudioverbose', error 45
 @@ -518,6 +520,7 @@
  isa0 at ichlpcib0
  lpt0 at isa0 port 0x378-0x37b irq 7
  com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
 +com0: console
  com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
  fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
  acpicpu0 at cpu0: ACPI CPU
 
 
 so genfb0 appears appears in the output - connection to PR/46376 ?
 
 Difference from original ivy bridge report (must try again with newer code)
 is that rather than a blank screen, I see 5 small copies of the xdm prompt
 arranged horizontally and flashing.