This change was made by a bot.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1510125
Title:
occasionally loses external monitor
Status in linux package in Ubuntu:
Confirmed
Bug description:
Occasionally the screen will blank and all windows move from the
external monitor to the laptop monitor. Relatively immediately
afterward both screens re-enable, but the windows don't move back to
the external monitor.
This usually appears to be triggered by a specific application, eg,
"ScudCloud" (a slack client that embeds an HTML webkit view), or
enabling the flash plugin in an existing firefox window.
dmesg shows:
[ 174.404713] ------------[ cut here ]------------
[ 174.404736] WARNING: CPU: 0 PID: 1699 at
/build/linux-AxjFAn/linux-4.2.0/drivers/gpu/drm/i915/i915_gem.c:5269
i915_gem_track_fb+0x129/0x140 [i915]()
[ 174.404738] WARN_ON(!(old->frontbuffer_bits & frontbuffer_bits))
[ 174.404739] Modules linked in:
[ 174.404741] bnep pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE)
vboxdrv(OE) asix usbnet mii xt_addrtype xt_conntrack ipt_MASQUERADE
nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4
iptable_filter ip_tables x_tables nf_nat nf_conntrack bridge stp llc aufs
nls_iso8859_1 applesmc input_polldev uvcvideo videobuf2_vmalloc
videobuf2_memops videobuf2_core v4l2_common videodev media btusb btrtl btbcm
btintel bluetooth snd_usb_audio snd_usbmidi_lib joydev input_leds bcm5974
snd_hda_codec_hdmi x86_pkg_temp_thermal intel_powerclamp coretemp
snd_hda_codec_cirrus kvm_intel snd_hda_codec_generic kvm snd_seq_midi
snd_seq_midi_event brcmfmac snd_hda_intel brcmutil snd_hda_codec snd_hda_core
cfg80211 snd_hwdep snd_rawmidi bdc_pci lpc_ich snd_pcm mei_me snd_seq mei
snd_seq_device
[ 174.404776] snd_timer thunderbolt snd sbs soundcore acpi_als kfifo_buf
shpchp sbshc industrialio apple_gmux mac_hid apple_bl parport_pc ppdev lp
parport autofs4 jitterentropy_rng drbg ansi_cprng algif_skcipher af_alg
dm_crypt hid_plantronics hid_microsoft hid_logitech_hidpp hid_generic
hid_logitech_dj hid_apple usbhid hid crct10dif_pclmul crc32_pclmul i915
ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper
i2c_algo_bit uas cryptd drm_kms_helper usb_storage drm ahci libahci video
[ 174.404803] CPU: 0 PID: 1699 Comm: gnome-shell Tainted: G OE
4.2.0-16-generic #19-Ubuntu
[ 174.404804] Hardware name: Apple Inc. MacBookPro11,4/Mac-06F11FD93F0323C5,
BIOS MBP114.88Z.0172.B04.1506051511 06/05/2015
[ 174.404806] 0000000000000000 000000005f8a407a ffff8804613eba28
ffffffff817e8c09
[ 174.404808] 0000000000000000 ffff8804613eba80 ffff8804613eba68
ffffffff8107b3c6
[ 174.404811] ffff880465a30000 0000000000000001 ffff88046756e640
ffff8804658558c0
[ 174.404813] Call Trace:
[ 174.404818] [<ffffffff817e8c09>] dump_stack+0x45/0x57
[ 174.404823] [<ffffffff8107b3c6>] warn_slowpath_common+0x86/0xc0
[ 174.404825] [<ffffffff8107b455>] warn_slowpath_fmt+0x55/0x70
[ 174.404836] [<ffffffffc0238ec9>] i915_gem_track_fb+0x129/0x140 [i915]
[ 174.404852] [<ffffffffc0281367>] intel_prepare_plane_fb+0xe7/0x1a0 [i915]
[ 174.404859] [<ffffffffc00cdfa9>]
drm_atomic_helper_prepare_planes+0x59/0xe0 [drm_kms_helper]
[ 174.404872] [<ffffffffc027984e>] __intel_set_mode+0x1ae/0xb60 [i915]
[ 174.404886] [<ffffffffc0280d16>] intel_crtc_set_config+0x2b6/0x580 [i915]
[ 174.404899] [<ffffffffc0044ee5>] ? drm_mode_create+0x25/0x60 [drm]
[ 174.404908] [<ffffffffc003e4c6>] drm_mode_set_config_internal+0x66/0x100
[drm]
[ 174.404917] [<ffffffffc0042b29>] drm_mode_setcrtc+0x3e9/0x500 [drm]
[ 174.404923] [<ffffffffc0033495>] drm_ioctl+0x125/0x610 [drm]
[ 174.404930] [<ffffffffc0042740>] ? drm_mode_setplane+0x1b0/0x1b0 [drm]
[ 174.404934] [<ffffffff812108a5>] do_vfs_ioctl+0x295/0x480
[ 174.404936] [<ffffffff81210b09>] SyS_ioctl+0x79/0x90
[ 174.404939] [<ffffffff817ef9f2>] entry_SYSCALL_64_fastpath+0x16/0x75
[ 174.404941] ---[ end trace fc649a1af1173285 ]---
[ 175.018549] snd_hda_codec_hdmi hdaudioC0D0: HDMI: ELD buf size is 0, force
128
[ 175.018587] snd_hda_codec_hdmi hdaudioC0D0: HDMI: invalid ELD data byte 0
[ 175.184359] thunderbolt 0000:07:00.0: resetting error on 0:c.
[ 175.184396] thunderbolt 0000:07:00.0: 0:c: hotplug: scanning
[ 175.184400] thunderbolt 0000:07:00.0: 0:c: hotplug: no switch found
[ 176.225350] thunderbolt 0000:07:00.0: resetting error on 0:c.
[ 176.225389] thunderbolt 0000:07:00.0: 0:c: got unplug event for
disconnected port, ignoring
[ 181.480150] usb 1-1.3.1: reset high-speed USB device number 10 using
xhci_hcd
[ 581.943528] usb 1-1.3.1: reset high-speed USB device number 10 using
xhci_hcd
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: linux-image-4.2.0-16-generic 4.2.0-16.19
ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
Uname: Linux 4.2.0-16-generic x86_64
ApportVersion: 2.19.1-0ubuntu3
Architecture: amd64
CurrentDesktop: GNOME
Date: Mon Oct 26 07:38:02 2015
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=dd225ec0-47f4-49d8-a51c-a2547f8eb945
InstallationDate: Installed on 2015-08-21 (66 days ago)
InstallationMedia: Ubuntu-GNOME 15.10 "Wily Werewolf" - Alpha amd64 (20150819)
MachineType: Apple Inc. MacBookPro11,4
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-16-generic.efi.signed
root=/dev/mapper/ubuntu--gnome--vg-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-4.2.0-16-generic N/A
linux-backports-modules-4.2.0-16-generic N/A
linux-firmware 1.149
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/05/2015
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP114.88Z.0172.B04.1506051511
dmi.board.name: Mac-06F11FD93F0323C5
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookPro11,4
dmi.chassis.type: 9
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-06F11FD93F0323C5
dmi.modalias:
dmi:bvnAppleInc.:bvrMBP114.88Z.0172.B04.1506051511:bd06/05/2015:svnAppleInc.:pnMacBookPro11,4:pvr1.0:rvnAppleInc.:rnMac-06F11FD93F0323C5:rvrMacBookPro11,4:cvnAppleInc.:ct9:cvrMac-06F11FD93F0323C5:
dmi.product.name: MacBookPro11,4
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.
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