I'm having some minor random glitches with graphics, so I searched syslog for intel and came across the same. I'm on Raring but running kernel 3.10.0-031000rc6-generic.

[    2.592187] WARNING: at /home/apw/COD/linux/drivers/gpu/drm/i915/intel_display.c:979 intel_wait_for_pipe_off+0x1bc/0x1d0 [i915]()
[    2.592188] pipe_off wait timed out
[    2.592203] Modules linked in: crc32_pclmul ghash_clmulni_intel i915(+) aesni_intel video i2c_algo_bit sdhci_pci aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd sdhci drm_kms_helper ahci libahci drm e1000e ptp pps_core
[    2.592207] CPU: 0 PID: 157 Comm: modprobe Not tainted 3.10.0-031000rc3-generic #201305261935
[    2.592208] Hardware name: Sony Corporation VPCZ13C5E/VAIO, BIOS R3031C3 10/04/2011
[    2.592212]  ffffffffa01ba520 ffff88024a6a9428 ffffffff816c133c ffff88024a6a9468
[    2.592214]  ffffffff81044c70 ffffffff81e9f140 ffff88024952c000 0000000000070008
[    2.592216]  00000000fffedd6b ffff88024a6a9fd8 0000000000000000 ffff88024a6a94c8
[    2.592217] Call Trace:
[    2.592226]  [<ffffffff816c133c>] dump_stack+0x19/0x1b
[    2.592231]  [<ffffffff81044c70>] warn_slowpath_common+0x70/0xa0
[    2.592233]  [<ffffffff81044d56>] warn_slowpath_fmt+0x46/0x50
[    2.592261]  [<ffffffffa01772ac>] intel_wait_for_pipe_off+0x1bc/0x1d0 [i915]
[    2.592291]  [<ffffffffa01773be>] intel_disable_pipe+0xfe/0x140 [i915]
[    2.592303]  [<ffffffffa0177d0d>] ironlake_crtc_disable+0xbd/0x260 [i915]
[    2.592313]  [<ffffffffa01789c5>] __intel_set_mode+0x195/0x390 [i915]
[    2.592316]  [<ffffffff8133d574>] ? snprintf+0x34/0x40
[    2.592317]  [<ffffffff813358b0>] ? add_uevent_var+0x100/0x100
[    2.592329]  [<ffffffffa017d5e6>] intel_set_mode+0x16/0x30 [i915]
[    2.592340]  [<ffffffffa017d855>] intel_crtc_set_config+0x255/0x310 [i915]
[    2.592352]  [<ffffffffa0065d8e>] drm_mode_set_config_internal+0x2e/0x60 [drm]
[    2.592355]  [<ffffffffa00c8386>] drm_fb_helper_set_par+0x66/0xe0 [drm_kms_helper]
[    2.592358]  [<ffffffff8139b65c>] fbcon_init+0x52c/0x5b0
[    2.592360]  [<ffffffff81406bec>] visual_init+0xbc/0x120
[    2.592362]  [<ffffffff8140987a>] do_bind_con_driver+0x16a/0x320
[    2.592363]  [<ffffffff81409c51>] do_take_over_console+0x61/0x70
[    2.592364]  [<ffffffff813996bb>] do_fbcon_takeover+0x5b/0xb0
[    2.592365]  [<ffffffff8139e455>] fbcon_event_notify+0x3c5/0x3f0
[    2.592368]  [<ffffffff816d048d>] notifier_call_chain+0x4d/0x70
[    2.592370]  [<ffffffff81071078>] __blocking_notifier_call_chain+0x58/0x80
[    2.592371]  [<ffffffff810710b6>] blocking_notifier_call_chain+0x16/0x20
[    2.592372]  [<ffffffff8138e74b>] fb_notifier_call_chain+0x1b/0x20
[    2.592373]  [<ffffffff8138fa33>] do_register_framebuffer+0x1c3/0x2f0
[    2.592374]  [<ffffffff8138fb85>] register_framebuffer+0x25/0x40
[    2.592376]  [<ffffffffa00c6cf7>] drm_fb_helper_single_fb_probe+0x187/0x2f0 [drm_kms_helper]
[    2.592378]  [<ffffffffa00c81d4>] drm_fb_helper_initial_config+0x94/0xd0 [drm_kms_helper]
[    2.592392]  [<ffffffffa019b261>] intel_fbdev_initial_config+0x21/0x30 [i915]
[    2.592399]  [<ffffffffa014bc9b>] i915_load_modeset_init+0x1ab/0x1e0 [i915]
[    2.592407]  [<ffffffffa014e380>] i915_driver_load+0x340/0x660 [i915]
[    2.592413]  [<ffffffffa0060ea1>] drm_get_pci_dev+0x181/0x2a0 [drm]
[    2.592421]  [<ffffffffa01496e6>] i915_pci_probe+0x46/0xa0 [i915]
[    2.592423]  [<ffffffff813679fb>] local_pci_probe+0x4b/0x80
[    2.592424]  [<ffffffff813692a9>] __pci_device_probe+0xd9/0xe0
[    2.592425]  [<ffffffff813692ea>] pci_device_probe+0x3a/0x60
[    2.592428]  [<ffffffff814368f1>] really_probe+0x61/0x210
[    2.592429]  [<ffffffff81436bfe>] driver_probe_device+0x3e/0x60
[    2.592430]  [<ffffffff81436ccb>] __driver_attach+0xab/0xb0
[    2.592432]  [<ffffffff81436c20>] ? driver_probe_device+0x60/0x60
[    2.592433]  [<ffffffff81434dee>] bus_for_each_dev+0x5e/0x90
[    2.592434]  [<ffffffff8143652e>] driver_attach+0x1e/0x20
[    2.592435]  [<ffffffff81436036>] bus_add_driver+0xf6/0x260
[    2.592436]  [<ffffffffa01e6000>] ? 0xffffffffa01e5fff
[    2.592437]  [<ffffffff8143720a>] driver_register+0x7a/0x160
[    2.592438]  [<ffffffffa01e6000>] ? 0xffffffffa01e5fff
[    2.592439]  [<ffffffff8136828c>] __pci_register_driver+0x4c/0x50
[    2.592444]  [<ffffffffa00610da>] drm_pci_init+0x11a/0x130 [drm]
[    2.592445]  [<ffffffffa01e6000>] ? 0xffffffffa01e5fff
[    2.592453]  [<ffffffffa01e6066>] i915_init+0x66/0x68 [i915]
[    2.592455]  [<ffffffff8100023f>] do_one_initcall+0x3f/0x160
[    2.592457]  [<ffffffff810acdf0>] do_init_module+0x80/0x1f0
[    2.592458]  [<ffffffff810adf21>] load_module+0x371/0x520
[    2.592460]  [<ffffffff810ab140>] ? add_kallsyms+0x210/0x210
[    2.592461]  [<ffffffff810ae1a9>] SyS_init_module+0xd9/0x110
[    2.592462]  [<ffffffff816d4f06>] system_call_fastpath+0x1a/0x1f