Public bug reported:
Xorg hangs on macbook air mid 2012 when the external thunderbolt display is
being unplugged.
Also, when I try to boot without the external display, the OS hangs immediately
on the kernel boot splash.
If I then plug the display in again, the OS unfreezes and continues to
run just fine.
The lockup is hard, so machine becomes unaccessible via the network.
Started to happen after a month or so of running Ubuntu. OSX is not susceptible
to any of the mentioned problems.
Clearing NVRAM and applying latest firmware updates doesn't help.
This is what I see in dmesg:
[ 12.330919] ------------[ cut here ]------------
[ 12.330950] WARNING: at
/build/buildd/linux-3.8.0/drivers/gpu/drm/i915/intel_display.c:5377
ironlake_crtc_mode_set+0x88a/0x8b0 [i915]()
[ 12.330952] Hardware name: MacBookAir5,2
[ 12.330953] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_cirrus
pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) parport_pc(F)
bnep ppd
ev(F) hid_generic btusb rfcomm bluetooth snd_hda_intel snd_hda_codec
snd_hwdep(F) snd_pcm(F) hid_apple joydev(F) snd_page_alloc(F) coretemp
binfmt_misc(F) kvm_
intel snd_seq_midi(F) arc4(F) kvm snd_seq_midi_event(F) brcmsmac uvcvideo
videobuf2_vmalloc videobuf2_memops ghash_clmulni_intel(F) usbhid videobuf2_core
bcm59
74 cordic(F) usb_storage(F) brcmutil hid snd_rawmidi(F) nls_iso8859_1(F)
snd_seq(F) aesni_intel(F) videodev aes_x86_64(F) xts(F) lrw(F) gf128mul(F)
ablk_helper
(F) cryptd(F) mac80211 cfg80211 i915 snd_seq_device(F) snd_timer(F)
drm_kms_helper apple_bl drm video(F) i2c_algo_bit applesmc lpc_ich mac_hid
snd(F) input_pol
ldev soundcore(F) bcma mei lp(F) microcode(F) parport(F) ahci(F) libahci(F)
[ 12.330999] Pid: 1191, comm: Xorg Tainted: GF O 3.8.0-21-generic
#32-Ubuntu
[ 12.331000] Call Trace:
[ 12.331008] [<ffffffff810587ef>] warn_slowpath_common+0x7f/0xc0
[ 12.331010] [<ffffffff8105884a>] warn_slowpath_null+0x1a/0x20
[ 12.331024] [<ffffffffa015409a>] ironlake_crtc_mode_set+0x88a/0x8b0 [i915]
[ 12.331039] [<ffffffffa015861b>] intel_set_mode+0x63b/0xa30 [i915]
[ 12.331053] [<ffffffffa0159126>] intel_crtc_set_config+0x716/0x950 [i915]
[ 12.331068] [<ffffffffa00d6c11>] drm_mode_setcrtc+0x121/0x5a0 [drm]
[ 12.331079] [<ffffffffa00c7559>] drm_ioctl+0x4e9/0x5b0 [drm]
[ 12.331093] [<ffffffffa00d6af0>] ? drm_mode_setplane+0x370/0x370 [drm]
[ 12.331098] [<ffffffff811a5969>] do_vfs_ioctl+0x99/0x570
[ 12.331101] [<ffffffff811a5ed1>] sys_ioctl+0x91/0xb0
[ 12.331105] [<ffffffff816d37dd>] system_call_fastpath+0x1a/0x1f
[ 12.331108] ---[ end trace 917b1961459e15ea ]---
Looks like some modesetting bug.
The same happens on fresh installations of both 12.10 and 13.04 and even
when I boot from live CD/USB.
Additional information:
----------------------------------------------------------------------
knazarov:~/ $ sudo lshw -C display
[0:32:29]
[sudo] password for knazarov:
*-display
description: VGA compatible controller
product: 3rd Gen Core processor Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 09
width: 64 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:46 memory:a0000000-a03fffff memory:90000000-9fffffff
ioport:2000(size=64)
----------------------------------------------------------------------
knazarov:~/ $ lsb_release -a
[0:37:47]
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 13.04
Release: 13.04
Codename: raring
----------------------------------------------------------------------
knazarov:~/ $ uname -a
[0:37:51]
Linux kn 3.8.0-21-generic #32-Ubuntu SMP Tue May 14 22:16:46 UTC 2013 x86_64
x86_64 x86_64 GNU/Linux
** Affects: xserver-xorg-video-intel (Ubuntu)
Importance: Undecided
Status: New
** Package changed: fglrx-installer (Ubuntu) => xserver-xorg-video-intel
(Ubuntu)
--
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to fglrx-installer in Ubuntu.
https://bugs.launchpad.net/bugs/1183089
Title:
xorg freezes on macbook air without external thunderbolt display
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1183089/+subscriptions
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