And this log I was lucky to get when the system in not completly freezing on lid opening (no messages from kernel in this case, just dies completely). So this is what kernel says when I'm opening lid, system still working, but display is turned off and no button except 'power' is working:

May  8 23:49:19 loki kernel: [   78.188094] divide error: 0000 [#1] SMP 
May  8 23:49:19 loki kernel: [   78.188137] Modules linked in: i8k snd_hda_codec_idt snd_hda_codec_hdmi gpio_ich hid_generic dell_wmi sparse_keymap btusb dell_laptop dcdbas coretemp kvm_intel kvm snd_hda_intel snd_hda_codec joydev serio_raw snd_hwdep r852 sm_common snd_pcm nand snd_page_alloc snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq lib80211_crypt_tkip nand_ecc snd_seq_device nand_bch snd_timer lpc_ich bch r592 nand_ids wl(POF) mtd memstick bnep rfcomm snd lib80211 bluetooth cfg80211 soundcore mac_hid i915 binfmt_misc drm_kms_helper video drm parport_pc i2c_algo_bit wmi ppdev lp parport hid_logitech_dj usbhid hid mmc_block psmouse ahci libahci firewire_ohci sdhci_pci firewire_core sdhci crc_itu_t sky2
May  8 23:49:19 loki kernel: [   78.188655] CPU: 0 PID: 32 Comm: kworker/0:1 Tainted: PF       W  O 3.13.11-031311-generic #201404222035
May  8 23:49:19 loki kernel: [   78.188700] Hardware name: Dell Inc. Inspiron 1525                   /0U990C, BIOS A17 10/27/2009
May  8 23:49:19 loki kernel: [   78.188742] Workqueue: kacpi_notify acpi_os_execute_deferred
May  8 23:49:19 loki kernel: [   78.188773] task: ffff8801195697f0 ti: ffff88011957c000 task.ti: ffff88011957c000
May  8 23:49:19 loki kernel: [   78.188803] RIP: 0010:[<ffffffffa01c46c6>]  [<ffffffffa01c46c6>] intel_sdvo_get_config+0xa6/0x1e0 [i915]
May  8 23:49:19 loki kernel: [   78.188875] RSP: 0018:ffff88011957db68  EFLAGS: 00010246
May  8 23:49:19 loki kernel: [   78.188902] RAX: 0000000000000000 RBX: ffff880036f216e0 RCX: ffff8800d902c000
May  8 23:49:19 loki kernel: [   78.188932] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
May  8 23:49:19 loki kernel: [   78.188961] RBP: ffff88011957dba8 R08: 0000000000000000 R09: 0000000000000001
May  8 23:49:19 loki kernel: [   78.188990] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8800d92e7800
May  8 23:49:19 loki kernel: [   78.189019] R13: 0000000000000000 R14: ffff8800d902c000 R15: ffffffffa0207d63
May  8 23:49:19 loki kernel: [   78.189049] FS:  0000000000000000(0000) GS:ffff88011fc00000(0000) knlGS:0000000000000000
May  8 23:49:19 loki kernel: [   78.189088] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
May  8 23:49:19 loki kernel: [   78.189112] CR2: 00007fe791ded170 CR3: 00000000d9e09000 CR4: 00000000000007f0
May  8 23:49:19 loki kernel: [   78.189141] Stack:
May  8 23:49:19 loki kernel: [   78.189154]  ffff88011957dba8 00ffffffa01c343e 0000000000000000 000000001e000000
May  8 23:49:19 loki kernel: [   78.189200]  ffff8800d92e7800 ffff8800d9d06b28 ffff8800d902c000 ffff8800d9d06800
May  8 23:49:19 loki kernel: [   78.189245]  ffff88011957dc18 ffffffffa019b438 ffffffffa0207d6b ffff880100000041
May  8 23:49:19 loki kernel: [   78.189290] Call Trace:
May  8 23:49:19 loki kernel: [   78.189318]  [<ffffffffa019b438>] intel_modeset_readout_hw_state+0x328/0x440 [i915]
May  8 23:49:19 loki kernel: [   78.189366]  [<ffffffffa01af350>] intel_modeset_setup_hw_state+0x30/0x350 [i915]
May  8 23:49:19 loki kernel: [   78.189417]  [<ffffffffa01b1a81>] intel_lid_notify+0xc1/0x100 [i915]
May  8 23:49:19 loki kernel: [   78.189452]  [<ffffffff81751dbd>] notifier_call_chain+0x4d/0x70
May  8 23:49:19 loki kernel: [   78.189479]  [<ffffffff81092e78>] __blocking_notifier_call_chain+0x58/0x80
May  8 23:49:19 loki kernel: [   78.189514]  [<ffffffff81092eb6>] blocking_notifier_call_chain+0x16/0x20
May  8 23:49:19 loki kernel: [   78.189550]  [<ffffffff814207d3>] acpi_lid_send_state+0x86/0xaf
May  8 23:49:19 loki kernel: [   78.189575]  [<ffffffff8142085e>] acpi_button_notify+0x40/0xde
May  8 23:49:19 loki kernel: [   78.189606]  [<ffffffff813f8af1>] acpi_device_notify+0x19/0x1b
May  8 23:49:19 loki kernel: [   78.189638]  [<ffffffff81408901>] acpi_ev_notify_dispatch+0x41/0x5c
May  8 23:49:19 loki kernel: [   78.189666]  [<ffffffff813f4c02>] acpi_os_execute_deferred+0x15/0x22
May  8 23:49:19 loki kernel: [   78.189699]  [<ffffffff810862ff>] process_one_work+0x17f/0x4c0
May  8 23:49:19 loki kernel: [   78.189729]  [<ffffffff8108752b>] worker_thread+0x11b/0x3d0
May  8 23:49:19 loki kernel: [   78.189754]  [<ffffffff81087410>] ? manage_workers.isra.21+0x190/0x190
May  8 23:49:19 loki kernel: [   78.189787]  [<ffffffff8108e459>] kthread+0xc9/0xe0
May  8 23:49:19 loki kernel: [   78.189809]  [<ffffffff8108e390>] ? flush_kthread_worker+0xb0/0xb0
May  8 23:49:19 loki kernel: [   78.189841]  [<ffffffff8175653c>] ret_from_fork+0x7c/0xb0
May  8 23:49:19 loki kernel: [   78.189865]  [<ffffffff8108e390>] ? flush_kthread_worker+0xb0/0xb0
May  8 23:49:19 loki kernel: [   78.189896] Code: 0f 85 9f 00 00 00 49 8b 85 b0 01 00 00 66 81 78 3e 92 25 0f 84 8c 00 00 00 8b b3 24 02 00 00 44 8b ab 20 02 00 00 31 d2 44 89 e8 <f7> f6 41 89 c5 8b 81 80 26 00 00 85 c0 0f 85 9f 00 00 00 48 8d 
May  8 23:49:19 loki kernel: [   78.190190] RIP  [<ffffffffa01c46c6>] intel_sdvo_get_config+0xa6/0x1e0 [i915]
May  8 23:49:19 loki kernel: [   78.190243]  RSP <ffff88011957db68>