I'm also having this issue on a new Lenovo X1 Carbon generation 3 (model 20BS CT01 WW). The screen will go black at random intervals and a similar stacktrace is produced on dmesg. Switching to a TTY and back (ctrl+alt+F1 and then back to ctrl+alt+f7, for example) returns to a functional Xorg. This is on Ubuntu trusty 14.04.3 LTS and 3.16.0-46-generic #62~14.04.1-Ubuntu.
dmesg output example: [32612.021698] ------------[ cut here ]------------ [32612.021722] WARNING: CPU: 0 PID: 1271 at /build/linux-lts-utopic-ZOOBEH/linux-lts-utopic-3.16.0/drivers/gpu/drm/i915/intel_pm.c:5940 intel_display_power_put+0x11d/0x160 [i915]() [32612.021724] Modules linked in: hid_microsoft usbhid hid uas usb_storage ctr ccm btrfs xor raid6_pq ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs libcrc32c uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core btusb v4l2_common videodev media msr acpi_call(OE) dm_crypt intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel arc4 aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd rfcomm snd_hda_codec_realtek snd_hda_codec_generic iwlmvm bnep mac80211 snd_hda_codec_hdmi bluetooth joydev serio_raw 6lowpan_iphc thinkpad_acpi snd_seq_midi snd_seq_midi_event nvram iwlwifi snd_hda_intel lpc_ich snd_hda_controller snd_hda_codec snd_rawmidi snd_hwdep cfg80211 snd_pcm snd_seq mei_me shpchp mei snd_seq_device snd_timer snd soundcore parport_pc binfmt_misc ppdev mac_hid lp parport nls_iso8859_1 i915 psmouse e1000e ahci libahci i2c_algo_bit ptp drm_kms_helper video drm wmi pps_core [32612.021758] CPU: 0 PID: 1271 Comm: Xorg Tainted: G W OE 3.16.0-46-generic #62~14.04.1-Ubuntu [32612.021759] Hardware name: LENOVO 20BSCTO1WW/20BSCTO1WW, BIOS N14ET31W (1.09 ) 06/26/2015 [32612.021760] 0000000000000009 ffff8800c5eebaa8 ffffffff817663d1 0000000000000000 [32612.021762] ffff8800c5eebae0 ffffffff8106de3d 0000000000000000 ffffffffc0302740 [32612.021764] 0000000000000800 ffff88021e468548 ffff88021e460000 ffff8800c5eebaf0 [32612.021766] Call Trace: [32612.021770] [<ffffffff817663d1>] dump_stack+0x45/0x56 [32612.021773] [<ffffffff8106de3d>] warn_slowpath_common+0x7d/0xa0 [32612.021776] [<ffffffff8106df1a>] warn_slowpath_null+0x1a/0x20 [32612.021785] [<ffffffffc0256aad>] intel_display_power_put+0x11d/0x160 [i915] [32612.021800] [<ffffffffc02bb0ff>] intel_edp_panel_off+0x11f/0x1c0 [i915] [32612.021812] [<ffffffffc02b37a4>] intel_ddi_post_disable+0xe4/0x150 [i915] [32612.021824] [<ffffffffc029e407>] haswell_crtc_disable+0x107/0x2e0 [i915] [32612.021835] [<ffffffffc02a00fa>] __intel_set_mode+0x78a/0xa90 [i915] [32612.021847] [<ffffffffc02a3256>] intel_set_mode+0x16/0x30 [i915] [32612.021858] [<ffffffffc02a418d>] intel_crtc_set_config+0x8ed/0xdb0 [i915] [32612.021869] [<ffffffffc0158401>] drm_mode_set_config_internal+0x61/0xe0 [drm] [32612.021878] [<ffffffffc015be49>] drm_mode_setcrtc+0xd9/0x590 [drm] [32612.021885] [<ffffffffc014c9ec>] drm_ioctl+0x1ec/0x660 [drm] [32612.021889] [<ffffffff811e75e0>] do_vfs_ioctl+0x2e0/0x4c0 [32612.021891] [<ffffffff811d6ce1>] ? __sb_end_write+0x31/0x60 [32612.021894] [<ffffffff811d4872>] ? vfs_write+0x172/0x1f0 [32612.021896] [<ffffffff811e7841>] SyS_ioctl+0x81/0xa0 [32612.021899] [<ffffffff8176ea8d>] system_call_fastpath+0x1a/0x1f [32612.021900] ---[ end trace 7b1c33a1651deac2 ]--- -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1384297 Title: After system resume, Intel i915 graphics hangs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1384297/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
