Hi there, I am also facing the same issue. I have Dell Inspiron 1525 running 14.04.1 LTS and kernel version 3.13.0-39-generic. System becomes unusable completly and screen goes off as well. Following is what i have found in dmesg
[ 47.428521] WARNING: CPU: 1 PID: 1146 at /build/buildd/linux-3.13.0/drivers/gpu/drm/i915/intel_display.c:4197 intel_modeset_check_state+0x76c/0x780 [i915]() [ 47.428523] wrong connector dpms state [ 47.428525] Modules linked in: ctr ccm bnep rfcomm bluetooth gpio_ich snd_hda_codec_idt snd_hda_codec_hdmi dell_wmi sparse_keymap uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev dell_laptop dcdbas dm_multipath scsi_dh coretemp arc4 r852 joydev sm_common serio_raw nand nand_ecc nand_bch bch iwl3945 nand_ids iwlegacy mtd r592 mac80211 memstick lpc_ich cfg80211 snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_page_alloc snd_seq_midi snd_seq_midi_event mac_hid snd_rawmidi snd_seq snd_seq_device snd_timer snd i915 soundcore wmi video drm_kms_helper drm i2c_algo_bit parport_pc ppdev lp parport hid_generic usbhid hid psmouse sdhci_pci firewire_ohci sdhci firewire_core ahci crc_itu_t libahci sky2 [ 47.428589] CPU: 1 PID: 1146 Comm: Xorg Tainted: G W 3.13.0-39-generic #66-Ubuntu [ 47.428591] Hardware name: Dell Inc. Inspiron 1525 /0WP007, BIOS A17 10/27/2009 [ 47.428594] 0000000000000009 ffff8800acfcb9f8 ffffffff8171ece7 ffff8800acfcba40 [ 47.428599] ffff8800acfcba30 ffffffff8106773d ffff8800afcdb000 ffff8800b75dd000 [ 47.428602] ffff8800b84a0000 ffff8800b84a02f8 0000000000000012 ffff8800acfcba90 [ 47.428607] Call Trace: [ 47.428615] [<ffffffff8171ece7>] dump_stack+0x45/0x56 [ 47.428621] [<ffffffff8106773d>] warn_slowpath_common+0x7d/0xa0 [ 47.428624] [<ffffffff810677ac>] warn_slowpath_fmt+0x4c/0x50 [ 47.428651] [<ffffffffa018e60c>] intel_modeset_check_state+0x76c/0x780 [i915] [ 47.428675] [<ffffffffa018e6b5>] intel_set_mode+0x25/0x30 [i915] [ 47.428698] [<ffffffffa018e786>] intel_release_load_detect_pipe+0xc6/0xf0 [i915] [ 47.428725] [<ffffffffa01b6859>] intel_tv_detect+0x359/0x500 [i915] [ 47.428735] [<ffffffffa013325b>] drm_helper_probe_single_connector_modes+0x1eb/0x380 [drm_kms_helper] [ 47.428761] [<ffffffffa00de617>] drm_mode_getconnector+0x417/0x480 [drm] [ 47.428766] [<ffffffff8108ea82>] ? __hrtimer_start_range_ns+0x1a2/0x3a0 [ 47.428781] [<ffffffffa00cfc22>] drm_ioctl+0x502/0x630 [drm] [ 47.428787] [<ffffffff81077eb2>] ? __set_task_blocked+0x32/0x70 [ 47.428794] [<ffffffff811d03c0>] do_vfs_ioctl+0x2e0/0x4c0 [ 47.428799] [<ffffffff811d0621>] SyS_ioctl+0x81/0xa0 [ 47.428803] [<ffffffff8172f7ed>] system_call_fastpath+0x1a/0x1f [ 47.428806] ---[ end trace ce38d32fc85a4372 ]--- How can i solve this? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1324935 Title: [Dell Inspiron 1525] WARNING: CPU: 1 PID: 1154 at /build/buildd/linux-3.13.0/drivers/gpu/drm/i915/intel_display.c:9226 intel_modeset_check_state+0x62d/0x780 [i915]() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1324935/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
