From: "Bruno Prémont" <bonbons@linux-vserver.org>
To: Carbonated Beverage <ramune@psychosnugglebunnies.net>
Cc: linux-kernel@vger.kernel.org,
Intel Graphics Development <intel-gfx@lists.freedesktop.org>
Subject: Re: 3.14.3 i915 dead display under X11
Date: Wed, 14 May 2014 20:47:38 +0200 [thread overview]
Message-ID: <20140514204738.60a2f49c@neptune.home> (raw)
In-Reply-To: <20140512031029.GA18875@psychosnugglebunnies.net>
CCing intel-gfx as otherwise it will probably not get seen by developers.
On Sun, 11 May 2014 Carbonated Beverage <ramune@psychosnugglebunnies.net> wrote:
> 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@intel.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@intel.com>
> Reviewed-by: Imre Deak <imre.deak@intel.com>
> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.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
next prev parent reply other threads:[~2014-05-14 18:47 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-12 3:10 3.14.3 i915 dead display under X11 Carbonated Beverage
2014-05-14 18:47 ` Bruno Prémont [this message]
2014-05-14 19:19 ` [Intel-gfx] " Daniel Vetter
2014-05-14 19:33 ` Greg KH
2014-05-14 19:43 ` Josh Boyer
2014-05-14 20:06 ` Greg KH
2014-05-14 20:19 ` Daniel Vetter
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