I'm willing to do some kernel debugging if necessary, including git bisects, recompilation and minor modifications. I'm not that good in kernel hacking, although I'll be able to help at least partially.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1183089 Title: xorg freezes on macbook air unplugging thunderbolt display Status in “xserver-xorg-video-intel” package in Ubuntu: New Bug description: 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1183089/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
