Same on Ubuntu 12.04 LTS, recently updated, Laptop Toshiba Satellite L300-G, while trying to load youtube video page in Google Chrome:

Oct 14 21:31:14 buildsystem kernel: [  897.804046] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
Oct 14 21:31:14 buildsystem kernel: [  897.804057] [drm] capturing error event; look for more information in /sys/kernel/debug/dri/0/i915_error_state
Oct 14 21:31:14 buildsystem kernel: [  897.805299] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x6af8000 ctx 0) at 0x6af8cbc
Oct 14 21:31:14 buildsystem kernel: [  898.312040] [drm:i915_reset] *ERROR* Failed to reset chip.
Oct 14 21:31:14 buildsystem kernel: [  898.324696] ------------[ cut here ]------------
Oct 14 21:31:14 buildsystem kernel: [  898.324760] WARNING: CPU: 1 PID: 1385 at /build/buildd/linux-lts-saucy-3.11.0/drivers/gpu/drm/i915/intel_display.c:907 assert_pll.constprop.57+0x4e/0x50 [i915]()
Oct 14 21:31:14 buildsystem kernel: [  898.324767] PLL state assertion failure (expected on, current off)
Oct 14 21:31:14 buildsystem kernel: [  898.324771] Modules linked in: pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) vmnet(OF) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OF) arc4 joydev snd_hda_codec_realtek uvcvideo rtl8187 videobuf2_core snd_hda_intel mac80211 videodev snd_hda_codec videobuf2_vmalloc videobuf2_memops snd_hwdep cfg80211 snd_pcm eeprom_93cx6 snd_seq_midi snd_rawmidi psmouse serio_raw lpc_ich snd_seq_midi_event snd_seq i915 snd_timer snd_seq_device drm_kms_helper toshiba_acpi drm sparse_keymap wmi snd i2c_algo_bit soundcore snd_page_alloc bnep rfcomm video mac_hid bluetooth parport_pc ppdev binfmt_misc lp parport ahci r8169 libahci mii
Oct 14 21:31:14 buildsystem kernel: [  898.324892] CPU: 1 PID: 1385 Comm: upowerd Tainted: GF          O 3.11.0-26-generic #45~precise1-Ubuntu
Oct 14 21:31:14 buildsystem kernel: [  898.324898] Hardware name: TOSHIBA Satellite L300/Base Board Product Name, BIOS 1.40 05/28/2008
Oct 14 21:31:14 buildsystem kernel: [  898.324903]  000000000000038b ffff8800b7913a58 ffffffff8173f07b 0000000000000007
Oct 14 21:31:14 buildsystem kernel: [  898.324915]  ffff8800b7913aa8 ffff8800b7913a98 ffffffff8106541c ffff8800b7f2c000
Oct 14 21:31:14 buildsystem kernel: [  898.324925]  ffff8800b7f2c000 ffff8800b9131800 ffff88003699c000 0000000000000001
Oct 14 21:31:14 buildsystem kernel: [  898.324935] Call Trace:
Oct 14 21:31:14 buildsystem kernel: [  898.324952]  [<ffffffff8173f07b>] dump_stack+0x46/0x58
Oct 14 21:31:14 buildsystem kernel: [  898.324963]  [<ffffffff8106541c>] warn_slowpath_common+0x8c/0xc0
Oct 14 21:31:14 buildsystem kernel: [  898.324971]  [<ffffffff81065506>] warn_slowpath_fmt+0x46/0x50
Oct 14 21:31:14 buildsystem kernel: [  898.325016]  [<ffffffffa01c07ce>] assert_pll.constprop.57+0x4e/0x50 [i915]
Oct 14 21:31:14 buildsystem kernel: [  898.325058]  [<ffffffffa01c3a88>] intel_crtc_load_lut+0x178/0x190 [i915]
Oct 14 21:31:14 buildsystem kernel: [  898.325069]  [<ffffffff81381fdc>] ? __const_udelay+0x2c/0x30
Oct 14 21:31:14 buildsystem kernel: [  898.325110]  [<ffffffffa01c4880>] i9xx_crtc_enable+0xf0/0x1a0 [i915]
Oct 14 21:31:14 buildsystem kernel: [  898.325151]  [<ffffffffa01c82f7>] __intel_set_mode+0x2a7/0x370 [i915]
Oct 14 21:31:14 buildsystem kernel: [  898.325194]  [<ffffffffa01c9556>] intel_set_mode+0x16/0x30 [i915]
Oct 14 21:31:14 buildsystem kernel: [  898.325236]  [<ffffffffa01ca26b>] intel_get_load_detect_pipe+0x24b/0x340 [i915]
Oct 14 21:31:14 buildsystem kernel: [  898.325287]  [<ffffffffa01ebf2a>] intel_tv_detect+0x10a/0x1f0 [i915]
Oct 14 21:31:14 buildsystem kernel: [  898.325323]  [<ffffffffa011fe08>] status_show+0x48/0x90 [drm]
Oct 14 21:31:14 buildsystem kernel: [  898.325334]  [<ffffffff81492a80>] dev_attr_show+0x20/0x60
Oct 14 21:31:14 buildsystem kernel: [  898.325345]  [<ffffffff8114e1ae>] ? __get_free_pages+0xe/0x40
Oct 14 21:31:14 buildsystem kernel: [  898.325356]  [<ffffffff81229666>] fill_read_buffer.isra.9+0x66/0xf0
Oct 14 21:31:14 buildsystem kernel: [  898.325365]  [<ffffffff812297a0>] sysfs_read_file+0xb0/0xf0
Oct 14 21:31:14 buildsystem kernel: [  898.325375]  [<ffffffff811b57d4>] vfs_read+0xb4/0x180
Oct 14 21:31:14 buildsystem kernel: [  898.325384]  [<ffffffff811b5a52>] SyS_read+0x52/0xa0
Oct 14 21:31:14 buildsystem kernel: [  898.325395]  [<ffffffff81753cdd>] system_call_fastpath+0x1a/0x1f
Oct 14 21:31:14 buildsystem kernel: [  898.325401] ---[ end trace 9c19d40c54ca884c ]---
Oct 14 21:31:14 buildsystem kernel: [  898.325469] ------------[ cut here ]------------
Oct 14 21:31:14 buildsystem kernel: [  898.325509] WARNING: CPU: 1 PID: 1385 at /build/buildd/linux-lts-saucy-3.11.0/drivers/gpu/drm/i915/intel_display.c:907 assert_pll.constprop.57+0x4e/0x50 [i915]()
Oct 14 21:31:14 buildsystem kernel: [  898.325514] PLL state assertion failure (expected on, current off)
Oct 14 21:31:14 buildsystem kernel: [  898.325518] Modules linked in: pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) vmnet(OF) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OF) arc4 joydev snd_hda_codec_realtek uvcvideo rtl8187 videobuf2_core snd_hda_intel mac80211 videodev snd_hda_codec videobuf2_vmalloc videobuf2_memops snd_hwdep cfg80211 snd_pcm eeprom_93cx6 snd_seq_midi snd_rawmidi psmouse serio_raw lpc_ich snd_seq_midi_event snd_seq i915 snd_timer snd_seq_device drm_kms_helper toshiba_acpi drm sparse_keymap wmi snd i2c_algo_bit soundcore snd_page_alloc bnep rfcomm video mac_hid bluetooth parport_pc ppdev binfmt_misc lp parport ahci r8169 libahci mii
Oct 14 21:31:14 buildsystem kernel: [  898.325630] CPU: 1 PID: 1385 Comm: upowerd Tainted: GF       W  O 3.11.0-26-generic #45~precise1-Ubuntu
Oct 14 21:31:14 buildsystem kernel: [  898.325635] Hardware name: TOSHIBA Satellite L300/Base Board Product Name, BIOS 1.40 05/28/2008