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Message-ID: <20140512031029.GA18875@psychosnugglebunnies.net>
Date: Sun, 11 May 2014 20:10:29 -0700
From: Carbonated Beverage <ramune@...chosnugglebunnies.net>
To: linux-kernel@...r.kernel.org
Subject: 3.14.3 i915 dead display under X11
Hi all,
I rarely upgrade kernels these days -- so when updating to 3.14.3, I found
the X display was blank -- switching to a text console appears to work, but
I still have to type blind.
Symptoms:
Text mode and KMS works correctly to come up with the text console. Running
X (whether through xdm or /usr/bin/Xorg) causes the display to go blank
and apparently turn off. Switching to a text console via Control-Alt-F#
leaves a mostly blank screen up, but there are brief flashes where it looks
like the contents of the text console gets rendered once every 5 seconds or so,
but so fast no words or letters can be recognized.
System:
* Thinkpad R61
* 00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) (rev 0c)
* Debian/wheezy
* xserver-xorg-video-intel 2:2.19.0-6
A diff of the Xorg.0.log (with timestamps removed, as it made almost every line
show up in the diff) trimmed down shows:
@@ -53,7 +53,7 @@
(==) |-->Input Device "<default keyboard>"
(==) The core keyboard device wasn't specified explicitly in the layout.
Using the default keyboard configuration.
- (II) Loader magic: 0x7f2813451ae0
+ (II) Loader magic: 0x7f492c35aae0
(II) Module ABI versions:
X.Org ANSI C Emulation: 0.4
X.Org Video Driver: 12.1
@@ -170,15 +170,17 @@
Sandybridge Server, Ivybridge Mobile (GT1), Ivybridge Mobile (GT2),
Ivybridge Desktop (GT1), Ivybridge Desktop (GT2), Ivybridge Server,
Ivybridge Server (GT2)
- (--) using VT number 7
+ (++) using VT number 7
+ (WW) xf86OpenConsole: setpgid failed: Operation not permitted
+ (WW) xf86OpenConsole: setsid failed: Operation not permitted
(WW) VGA arbiter: cannot open kernel arbiter, no multi-card support
drmOpenDevice: node name is /dev/dri/card0
- drmOpenDevice: open result is 10, (OK)
+ drmOpenDevice: open result is 8, (OK)
drmOpenByBusid: Searching for BusID pci:0000:00:02.0
drmOpenDevice: node name is /dev/dri/card0
- drmOpenDevice: open result is 10, (OK)
- drmOpenByBusid: drmOpenMinor returns 10
+ drmOpenDevice: open result is 8, (OK)
+ drmOpenByBusid: drmOpenMinor returns 8
drmOpenByBusid: drmGetBusid reports pci:0000:00:02.0
(**) intel(0): Depth 16, (--) framebuffer bpp 16
(==) intel(0): RGB weight 565
@@ -387,7 +389,17 @@
(II) AutoAddDevices is off - not adding device.
(II) config/udev: Adding input device ThinkPad Extra Buttons (/dev/input/event5)
(II) AutoAddDevices is off - not adding device.
- (II) AIGLX: Suspending AIGLX clients for VT switch
- (II) UnloadModule: "kbd"
- (II) UnloadModule: "mouse"
- Server terminated successfully (0). Closing log file.
+ (II) intel(0): EDID vendor "LEN", prod id 16435
+ (II) intel(0): Printing DDC gathered Modelines:
+ (II) intel(0): Modeline "1440x900"x0.0 97.78 1440 1488 1520 1760 900 903 909 926 -hsync -vsync (55.6 kHz eP)
+ (II) intel(0): Modeline "1440x900"x0.0 81.49 1440 1488 1520 1760 900 903 909 926 -hsync -vsync (46.3 kHz e)
+ (II) intel(0): Modeline "800x600"x0.0 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (37.9 kHz e)
+ (II) intel(0): Modeline "640x480"x0.0 25.18 640 656 752 800 480 490 492 525 -hsync -vsync (31.5 kHz e)
+ (II) intel(0): Modeline "1024x768"x0.0 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (48.4 kHz e)
+ (II) intel(0): EDID vendor "LEN", prod id 16435
+ (II) intel(0): Printing DDC gathered Modelines:
+ (II) intel(0): Modeline "1440x900"x0.0 97.78 1440 1488 1520 1760 900 903 909 926 -hsync -vsync (55.6 kHz eP)
+ (II) intel(0): Modeline "1440x900"x0.0 81.49 1440 1488 1520 1760 900 903 909 926 -hsync -vsync (46.3 kHz e)
+ (II) intel(0): Modeline "800x600"x0.0 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (37.9 kHz e)
+ (II) intel(0): Modeline "640x480"x0.0 25.18 640 656 752 800 480 490 492 525 -hsync -vsync (31.5 kHz e)
+ (II) intel(0): Modeline "1024x768"x0.0 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (48.4 kHz e)
Bisecting from 3.13.6 (good) to 3.14.3 (bad) ended up with...
commit b35684b8fa94e04f55fd38bf672b737741d2f9e2
Author: Jani Nikula <jani.nikula@...el.com>
Date: Thu Nov 14 12:13:41 2013 +0200
drm/i915: do full backlight setup at enable time
We should now have all the information we need to do a full
initialization of the backlight registers.
v2: Keep QUIRK_NO_PCH_PWM_ENABLE for now (Imre).
Signed-off-by: Jani Nikula <jani.nikula@...el.com>
Reviewed-by: Imre Deak <imre.deak@...el.com>
Signed-off-by: Daniel Vetter <daniel.vetter@...ll.ch>
Which is in 3.12.0????
I'm not sure how that came to be. Does that look right? What other
information would be required to track this down?
Thanks,
-- DN
Daniel Nobuto
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