The 4.4.0-999-generic daily (201512120150) seems to work. Although there's a whole bunch of slowpath warnings in the logs. (I say seems to work - I'm running it now in KDE apparently OK; on the first boot the desktop didn't complete starting up but ti wasn't obvious why, X was still responsive just apps didn't start; but that seems different?)
Here's the current boot warnings in the working 4.4: [ 4.012238] ------------[ cut here ]------------ [ 4.012339] WARNING: CPU: 0 PID: 143 at /home/kernel/COD/linux/drivers/gpu/drm/i915/intel_display.c:1407 assert_planes_disabled+0x102/0x140 [i915]() [ 4.012358] plane B assertion failure, should be off on pipe B but is still active [ 4.012373] Modules linked in: psmouse sdhci_pci pata_acpi(+) i915(+) e100 mii firewire_ohci i2c_algo_bit drm_kms_helper sdhci syscopyarea sysfillrect firewire_core sysimgblt crc_itu_t fb_sys_fops drm fjes video [ 4.012436] CPU: 0 PID: 143 Comm: systemd-udevd Not tainted 4.4.0-999-generic #201512120150 [ 4.012452] Hardware name: TOSHIBA Equium A100/MPAD-MSAE Customer Reference Boards, BIOS 2.10 10/23/2006 [ 4.012468] 0000000000000000 000000009cbb9ea2 ffff8800354a3608 ffffffff813c8b04 [ 4.012487] ffff8800354a3650 ffff8800354a3640 ffffffff8107d692 ffff880035670000 [ 4.012506] 0000000000000001 0000000000000042 0000000000000042 ffff880035670034 [ 4.012525] Call Trace: [ 4.012541] [<ffffffff813c8b04>] dump_stack+0x44/0x60 [ 4.012555] [<ffffffff8107d692>] warn_slowpath_common+0x82/0xc0 [ 4.012567] [<ffffffff8107d72c>] warn_slowpath_fmt+0x5c/0x80 [ 4.012626] [<ffffffffc016be38>] ? gen2_read32+0x28/0x90 [i915] [ 4.012670] [<ffffffffc017b692>] assert_planes_disabled+0x102/0x140 [i915] [ 4.012715] [<ffffffffc01860fb>] intel_disable_pipe+0x4b/0x2c0 [i915] [ 4.012745] [<ffffffffc003f0ec>] ? drm_crtc_vblank_get+0x1c/0x20 [drm] [ 4.012790] [<ffffffffc018a12f>] i9xx_crtc_disable+0x7f/0x450 [i915] [ 4.012834] [<ffffffffc01820fc>] ? intel_crtc_disable_planes+0xdc/0xf0 [i915] [ 4.012881] [<ffffffffc018f256>] intel_crtc_disable_noatomic+0x66/0xe0 [i915] [ 4.012928] [<ffffffffc0196051>] intel_modeset_setup_hw_state+0xac1/0xdd0 [i915] [ 4.012977] [<ffffffffc0197db9>] intel_modeset_init+0x939/0x11e0 [i915] [ 4.013026] [<ffffffffc01d0bd8>] i915_driver_load+0xaf8/0xf30 [i915] [ 4.013036] [<ffffffff81724217>] ? netlink_broadcast_filtered+0x137/0x3c0 [ 4.013044] [<ffffffff813cbfa0>] ? cleanup_uevent_env+0x10/0x10 [ 4.013052] [<ffffffff813cc34b>] ? kobject_uevent_env+0x15b/0x640 [ 4.013060] [<ffffffff815234c7>] ? get_device+0x17/0x20 [ 4.013068] [<ffffffff81529755>] ? klist_class_dev_get+0x15/0x20 [ 4.013077] [<ffffffff817ef5a7>] ? klist_node_init+0x37/0x50 [ 4.013084] [<ffffffff817ef630>] ? klist_add_tail+0x20/0x50 [ 4.013091] [<ffffffff815251e2>] ? device_add+0x232/0x680 [ 4.013112] [<ffffffffc00411e7>] drm_dev_register+0xa7/0xb0 [drm] [ 4.013133] [<ffffffffc004377d>] drm_get_pci_dev+0x8d/0x1e0 [drm] [ 4.013169] [<ffffffffc01161e4>] i915_pci_probe+0x34/0x50 [i915] [ 4.013179] [<ffffffff81418905>] local_pci_probe+0x45/0xa0 [ 4.013187] [<ffffffff81419d43>] pci_device_probe+0x103/0x150 [ 4.013194] [<ffffffff815288d2>] driver_probe_device+0x222/0x4a0 [ 4.013202] [<ffffffff81528bd4>] __driver_attach+0x84/0x90 [ 4.013209] [<ffffffff81528b50>] ? driver_probe_device+0x4a0/0x4a0 [ 4.013217] [<ffffffff815264fc>] bus_for_each_dev+0x6c/0xc0 [ 4.013224] [<ffffffff8152808e>] driver_attach+0x1e/0x20 [ 4.013231] [<ffffffff81527bcb>] bus_add_driver+0x1eb/0x280 [ 4.013238] [<ffffffff81529470>] driver_register+0x60/0xe0 [ 4.013246] [<ffffffff8141822c>] __pci_register_driver+0x4c/0x50 [ 4.013266] [<ffffffffc00439b0>] drm_pci_init+0xe0/0x110 [drm] [ 4.013274] [<ffffffffc023d000>] ? 0xffffffffc023d000 [ 4.013304] [<ffffffffc023d092>] i915_init+0x92/0x99 [i915] [ 4.013313] [<ffffffff81002123>] do_one_initcall+0xb3/0x200 [ 4.013321] [<ffffffff811c8a01>] ? __vunmap+0x91/0xe0 [ 4.013329] [<ffffffff811e4adb>] ? kmem_cache_alloc_trace+0x16b/0x1d0 [ 4.013336] [<ffffffff811e5845>] ? kfree+0x115/0x130 [ 4.013345] [<ffffffff81186683>] do_init_module+0x5f/0x1e5 [ 4.013353] [<ffffffff81105123>] load_module+0x1603/0x1b70 [ 4.013361] [<ffffffff81101380>] ? __symbol_put+0x60/0x60 [ 4.013371] [<ffffffff8120b5a0>] ? kernel_read+0x50/0x80 [ 4.013378] [<ffffffff811058d9>] SyS_finit_module+0xb9/0xf0 [ 4.013387] [<ffffffff817fc3b6>] entry_SYSCALL_64_fastpath+0x16/0x75 [ 4.013394] ---[ end trace 3fb1b9aeaaaaf1f5 ]--- [ 4.036648] [drm] initialized overlay support [ 4.036677] [drm] Initialized i915 1.6.0 20151010 for 0000:00:02.0 on minor 0 [ 4.056412] ------------[ cut here ]------------ [ 4.056491] WARNING: CPU: 1 PID: 6 at /home/kernel/COD/linux/drivers/gpu/drm/i915/intel_display.c:11683 intel_plane_atomic_calc_changes+0x567/0x6c0 [i915]() [ 4.056503] WARN_ON(was_visible) [ 4.056506] Modules linked in: [ 4.056512] psmouse sdhci_pci pata_acpi i915 e100 mii firewire_ohci i2c_algo_bit drm_kms_helper sdhci syscopyarea sysfillrect firewire_core sysimgblt crc_itu_t fb_sys_fops drm fjes video [ 4.056547] CPU: 1 PID: 6 Comm: kworker/u4:0 Tainted: G W 4.4.0-999-generic #201512120150 [ 4.056558] Hardware name: TOSHIBA Equium A100/MPAD-MSAE Customer Reference Boards, BIOS 2.10 10/23/2006 [ 4.056572] Workqueue: events_unbound async_run_entry_fn [ 4.056579] 0000000000000000 000000006a781c97 ffff8800bb7df888 ffffffff813c8b04 [ 4.056590] ffff8800bb7df8d0 ffff8800bb7df8c0 ffffffff8107d692 0000000000000001 [ 4.056601] ffff880035a0f000 ffff88003551f900 ffff8800bb2b0000 0000000000000001 [ 4.056613] Call Trace: [ 4.056623] [<ffffffff813c8b04>] dump_stack+0x44/0x60 [ 4.056630] [<ffffffff8107d692>] warn_slowpath_common+0x82/0xc0 [ 4.056638] [<ffffffff8107d72c>] warn_slowpath_fmt+0x5c/0x80 [ 4.056683] [<ffffffffc0196ec7>] intel_plane_atomic_calc_changes+0x567/0x6c0 [i915] [ 4.056703] [<ffffffffc00c533b>] ? drm_plane_helper_check_update+0xdb/0x190 [drm_kms_helper] [ 4.056749] [<ffffffffc0177340>] intel_plane_atomic_check+0x140/0x1f0 [i915] [ 4.056764] [<ffffffffc00cc368>] drm_atomic_helper_check_planes+0x48/0x1c0 [drm_kms_helper] [ 4.056812] [<ffffffffc0191540>] intel_atomic_check+0x190/0x660 [i915] [ 4.056847] [<ffffffffc005851e>] drm_atomic_check_only+0x18e/0x590 [drm] [ 4.056871] [<ffffffffc0058a0d>] ? drm_atomic_set_fb_for_plane+0x2d/0x90 [drm] [ 4.056897] [<ffffffffc0058937>] drm_atomic_commit+0x17/0x60 [drm] [ 4.056942] [<ffffffffc01952d5>] intel_get_load_detect_pipe+0x3d5/0x530 [i915] [ 4.056993] [<ffffffffc01ce94d>] intel_tv_detect+0x13d/0x5f0 [i915] [ 4.057017] [<ffffffffc005303e>] ? drm_get_edid+0x3e/0x3f0 [drm] [ 4.057030] [<ffffffffc00c4da5>] drm_helper_probe_single_connector_modes_merge_bits+0x235/0x4d0 [drm_kms_helper] [ 4.057046] [<ffffffffc00c5053>] drm_helper_probe_single_connector_modes+0x13/0x20 [drm_kms_helper] [ 4.057063] [<ffffffffc00d105e>] drm_fb_helper_initial_config+0xae/0x420 [drm_kms_helper] [ 4.057110] [<ffffffffc01a554b>] intel_fbdev_initial_config+0x1b/0x20 [i915] [ 4.057118] [<ffffffff8109f118>] async_run_entry_fn+0x48/0x150 [ 4.057126] [<ffffffff8109637a>] process_one_work+0x1aa/0x440 [ 4.057133] [<ffffffff8109665b>] worker_thread+0x4b/0x4c0 [ 4.057140] [<ffffffff81096610>] ? process_one_work+0x440/0x440 [ 4.057148] [<ffffffff8109c7d8>] kthread+0xd8/0xf0 [ 4.057156] [<ffffffff8109c700>] ? kthread_create_on_node+0x1a0/0x1a0 [ 4.057165] [<ffffffff817fc74f>] ret_from_fork+0x3f/0x70 [ 4.057173] [<ffffffff8109c700>] ? kthread_create_on_node+0x1a0/0x1a0 [ 4.057180] ---[ end trace 3fb1b9aeaaaaf1f6 ]--- [ 4.130808] ------------[ cut here ]------------ [ 4.130907] WARNING: CPU: 1 PID: 6 at /home/kernel/COD/linux/drivers/gpu/drm/i915/intel_display.c:12708 intel_modeset_check_state+0x563/0x8a0 [i915]() [ 4.130926] encoder's enabled state mismatch (expected 0, found 1) [ 4.130936] Modules linked in: psmouse sdhci_pci pata_acpi i915 e100 mii firewire_ohci i2c_algo_bit drm_kms_helper sdhci syscopyarea sysfillrect firewire_core sysimgblt crc_itu_t fb_sys_fops drm fjes video [ 4.130997] CPU: 1 PID: 6 Comm: kworker/u4:0 Tainted: G W 4.4.0-999-generic #201512120150 [ 4.131007] Hardware name: TOSHIBA Equium A100/MPAD-MSAE Customer Reference Boards, BIOS 2.10 10/23/2006 [ 4.131020] Workqueue: events_unbound async_run_entry_fn [ 4.131027] 0000000000000000 000000006a781c97 ffff8800bb7df960 ffffffff813c8b04 [ 4.131039] ffff8800bb7df9a8 ffff8800bb7df998 ffffffff8107d692 ffff880035a06b18 [ 4.131050] ffff88003565d300 ffff880035a06b48 ffff880035a06b30 ffff880035a06800 [ 4.131061] Call Trace: [ 4.131071] [<ffffffff813c8b04>] dump_stack+0x44/0x60 [ 4.131080] [<ffffffff8107d692>] warn_slowpath_common+0x82/0xc0 [ 4.131087] [<ffffffff8107d72c>] warn_slowpath_fmt+0x5c/0x80 [ 4.131135] [<ffffffffc01cda57>] ? intel_tv_get_hw_state+0x27/0x50 [i915] [ 4.131179] [<ffffffffc01845a3>] intel_modeset_check_state+0x563/0x8a0 [i915] [ 4.131227] [<ffffffffc018fd1b>] intel_atomic_commit+0x4bb/0x6f0 [i915] [ 4.131260] [<ffffffffc0058957>] drm_atomic_commit+0x37/0x60 [drm] [ 4.131305] [<ffffffffc01952d5>] intel_get_load_detect_pipe+0x3d5/0x530 [i915] [ 4.131354] [<ffffffffc01ce94d>] intel_tv_detect+0x13d/0x5f0 [i915] [ 4.131378] [<ffffffffc005303e>] ? drm_get_edid+0x3e/0x3f0 [drm] [ 4.131395] [<ffffffffc00c4da5>] drm_helper_probe_single_connector_modes_merge_bits+0x235/0x4d0 [drm_kms_helper] [ 4.131411] [<ffffffffc00c5053>] drm_helper_probe_single_connector_modes+0x13/0x20 [drm_kms_helper] [ 4.131428] [<ffffffffc00d105e>] drm_fb_helper_initial_config+0xae/0x420 [drm_kms_helper] [ 4.131475] [<ffffffffc01a554b>] intel_fbdev_initial_config+0x1b/0x20 [i915] [ 4.131482] [<ffffffff8109f118>] async_run_entry_fn+0x48/0x150 [ 4.131490] [<ffffffff8109637a>] process_one_work+0x1aa/0x440 [ 4.131498] [<ffffffff8109665b>] worker_thread+0x4b/0x4c0 [ 4.131505] [<ffffffff81096610>] ? process_one_work+0x440/0x440 [ 4.131513] [<ffffffff8109c7d8>] kthread+0xd8/0xf0 [ 4.131520] [<ffffffff8109c700>] ? kthread_create_on_node+0x1a0/0x1a0 [ 4.131529] [<ffffffff817fc74f>] ret_from_fork+0x3f/0x70 [ 4.131537] [<ffffffff8109c700>] ? kthread_create_on_node+0x1a0/0x1a0 [ 4.131544] ---[ end trace 3fb1b9aeaaaaf1f7 ]--- [ 4.144317] firewire_core 0000:07:06.1: created device fw0: GUID 00080da0d16368a6, S400 [ 4.284086] ------------[ cut here ]------------ [ 4.284200] WARNING: CPU: 1 PID: 6 at /home/kernel/COD/linux/drivers/gpu/drm/i915/intel_display.c:12708 intel_modeset_check_state+0x563/0x8a0 [i915]() [ 4.284219] encoder's enabled state mismatch (expected 0, found 1) [ 4.284229] Modules linked in: psmouse sdhci_pci pata_acpi i915 e100 mii firewire_ohci i2c_algo_bit drm_kms_helper sdhci syscopyarea sysfillrect firewire_core sysimgblt crc_itu_t fb_sys_fops drm fjes video [ 4.284291] CPU: 1 PID: 6 Comm: kworker/u4:0 Tainted: G W 4.4.0-999-generic #201512120150 [ 4.284307] Hardware name: TOSHIBA Equium A100/MPAD-MSAE Customer Reference Boards, BIOS 2.10 10/23/2006 [ 4.284330] Workqueue: events_unbound async_run_entry_fn [ 4.284341] 0000000000000000 000000006a781c97 ffff8800bb7df9a8 ffffffff813c8b04 [ 4.284360] ffff8800bb7df9f0 ffff8800bb7df9e0 ffffffff8107d692 ffff880035a06b18 [ 4.284379] ffff88003565d300 ffff880035a06b48 ffff880035a06b30 ffff880035a06800 [ 4.284404] Call Trace: [ 4.284415] [<ffffffff813c8b04>] dump_stack+0x44/0x60 [ 4.284424] [<ffffffff8107d692>] warn_slowpath_common+0x82/0xc0 [ 4.284431] [<ffffffff8107d72c>] warn_slowpath_fmt+0x5c/0x80 [ 4.284483] [<ffffffffc01cda57>] ? intel_tv_get_hw_state+0x27/0x50 [i915] [ 4.284527] [<ffffffffc01845a3>] intel_modeset_check_state+0x563/0x8a0 [i915] [ 4.284575] [<ffffffffc01972be>] ? intel_cleanup_plane_fb+0x4e/0x70 [i915] [ 4.284621] [<ffffffffc018fd1b>] intel_atomic_commit+0x4bb/0x6f0 [i915] [ 4.284673] [<ffffffffc0058957>] drm_atomic_commit+0x37/0x60 [drm] [ 4.284718] [<ffffffffc0195550>] intel_release_load_detect_pipe+0x120/0x160 [i915] [ 4.284768] [<ffffffffc01ceb4b>] intel_tv_detect+0x33b/0x5f0 [i915] [ 4.284787] [<ffffffffc00c4da5>] drm_helper_probe_single_connector_modes_merge_bits+0x235/0x4d0 [drm_kms_helper] [ 4.284803] [<ffffffffc00c5053>] drm_helper_probe_single_connector_modes+0x13/0x20 [drm_kms_helper] [ 4.284821] [<ffffffffc00d105e>] drm_fb_helper_initial_config+0xae/0x420 [drm_kms_helper] [ 4.284868] [<ffffffffc01a554b>] intel_fbdev_initial_config+0x1b/0x20 [i915] [ 4.284876] [<ffffffff8109f118>] async_run_entry_fn+0x48/0x150 [ 4.284884] [<ffffffff8109637a>] process_one_work+0x1aa/0x440 [ 4.284891] [<ffffffff8109665b>] worker_thread+0x4b/0x4c0 [ 4.284899] [<ffffffff81096610>] ? process_one_work+0x440/0x440 [ 4.284907] [<ffffffff8109c7d8>] kthread+0xd8/0xf0 [ 4.284914] [<ffffffff8109c700>] ? kthread_create_on_node+0x1a0/0x1a0 [ 4.284923] [<ffffffff817fc74f>] ret_from_fork+0x3f/0x70 [ 4.284931] [<ffffffff8109c700>] ? kthread_create_on_node+0x1a0/0x1a0 [ 4.284938] ---[ end trace 3fb1b9aeaaaaf1f8 ]--- [ 4.285849] ------------[ cut here ]------------ [ 4.285897] WARNING: CPU: 1 PID: 6 at /home/kernel/COD/linux/drivers/gpu/drm/i915/intel_fbdev.c:406 intel_fb_initial_config+0x323/0x6c0 [i915]() [ 4.285908] WARN_ON(!encoder->crtc) [ 4.285911] Modules linked in: [ 4.285916] psmouse sdhci_pci pata_acpi i915 e100 mii firewire_ohci i2c_algo_bit drm_kms_helper sdhci syscopyarea sysfillrect firewire_core sysimgblt crc_itu_t fb_sys_fops drm fjes video [ 4.285948] CPU: 1 PID: 6 Comm: kworker/u4:0 Tainted: G W 4.4.0-999-generic #201512120150 [ 4.285958] Hardware name: TOSHIBA Equium A100/MPAD-MSAE Customer Reference Boards, BIOS 2.10 10/23/2006 [ 4.285969] Workqueue: events_unbound async_run_entry_fn [ 4.285975] 0000000000000000 000000006a781c97 ffff8800bb7dfb68 ffffffff813c8b04 [ 4.285987] ffff8800bb7dfbb0 ffff8800bb7dfba0 ffffffff8107d692 0000000000000000 [ 4.285998] 0000000000000001 ffff88003554c068 0000000000000000 0000000000000001 [ 4.286009] Call Trace: [ 4.286017] [<ffffffff813c8b04>] dump_stack+0x44/0x60 [ 4.286024] [<ffffffff8107d692>] warn_slowpath_common+0x82/0xc0 [ 4.286031] [<ffffffff8107d72c>] warn_slowpath_fmt+0x5c/0x80 [ 4.286075] [<ffffffffc01a42f8>] ? intel_fb_initial_config+0x48/0x6c0 [i915] [ 4.286119] [<ffffffffc01a45d3>] intel_fb_initial_config+0x323/0x6c0 [i915] [ 4.286134] [<ffffffffc00d0513>] drm_setup_crtcs+0x263/0xb10 [drm_kms_helper] [ 4.286148] [<ffffffffc00c4d19>] ? drm_helper_probe_single_connector_modes_merge_bits+0x1a9/0x4d0 [drm_kms_helper] [ 4.286166] [<ffffffffc00d107f>] drm_fb_helper_initial_config+0xcf/0x420 [drm_kms_helper] [ 4.286212] [<ffffffffc01a554b>] intel_fbdev_initial_config+0x1b/0x20 [i915] [ 4.286220] [<ffffffff8109f118>] async_run_entry_fn+0x48/0x150 [ 4.286227] [<ffffffff8109637a>] process_one_work+0x1aa/0x440 [ 4.286234] [<ffffffff8109665b>] worker_thread+0x4b/0x4c0 [ 4.286241] [<ffffffff81096610>] ? process_one_work+0x440/0x440 [ 4.286248] [<ffffffff8109c7d8>] kthread+0xd8/0xf0 [ 4.286256] [<ffffffff8109c700>] ? kthread_create_on_node+0x1a0/0x1a0 [ 4.286263] [<ffffffff817fc74f>] ret_from_fork+0x3f/0x70 [ 4.286271] [<ffffffff8109c700>] ? kthread_create_on_node+0x1a0/0x1a0 [ 4.286277] ---[ end trace 3fb1b9aeaaaaf1f9 ]--- [ 4.291703] fbcon: inteldrmfb (fb0) is primary device [ 4.291838] ------------[ cut here ]------------ [ 4.291908] WARNING: CPU: 0 PID: 6 at /home/kernel/COD/linux/drivers/gpu/drm/i915/intel_display.c:11683 intel_plane_atomic_calc_changes+0x567/0x6c0 [i915]() [ 4.291910] WARN_ON(was_visible) [ 4.291925] Modules linked in: psmouse sdhci_pci pata_acpi i915 e100 mii firewire_ohci i2c_algo_bit drm_kms_helper sdhci syscopyarea sysfillrect firewire_core sysimgblt crc_itu_t fb_sys_fops drm fjes video [ 4.291928] CPU: 0 PID: 6 Comm: kworker/u4:0 Tainted: G W 4.4.0-999-generic #201512120150 [ 4.291929] Hardware name: TOSHIBA Equium A100/MPAD-MSAE Customer Reference Boards, BIOS 2.10 10/23/2006 [ 4.291936] Workqueue: events_unbound async_run_entry_fn [ 4.291939] 0000000000000000 000000006a781c97 ffff8800bb7df798 ffffffff813c8b04 [ 4.291942] ffff8800bb7df7e0 ffff8800bb7df7d0 ffffffff8107d692 0000000000000001 [ 4.291944] ffff880035a0a000 ffff880035abb240 ffff8800b4ed8000 0000000000000001 [ 4.291945] Call Trace: [ 4.291951] [<ffffffff813c8b04>] dump_stack+0x44/0x60 [ 4.291954] [<ffffffff8107d692>] warn_slowpath_common+0x82/0xc0 [ 4.291956] [<ffffffff8107d72c>] warn_slowpath_fmt+0x5c/0x80 [ 4.291997] [<ffffffffc0196ec7>] intel_plane_atomic_calc_changes+0x567/0x6c0 [i915] [ 4.292009] [<ffffffffc00c533b>] ? drm_plane_helper_check_update+0xdb/0x190 [drm_kms_helper] [ 4.292076] [<ffffffffc0177340>] intel_plane_atomic_check+0x140/0x1f0 [i915] [ 4.292085] [<ffffffffc00cc368>] drm_atomic_helper_check_planes+0x48/0x1c0 [drm_kms_helper] [ 4.292125] [<ffffffffc0191540>] intel_atomic_check+0x190/0x660 [i915] [ 4.292153] [<ffffffffc005851e>] drm_atomic_check_only+0x18e/0x590 [drm] [ 4.292171] [<ffffffffc0058937>] drm_atomic_commit+0x17/0x60 [drm] [ 4.292180] [<ffffffffc00ced0f>] restore_fbdev_mode+0x22f/0x260 [drm_kms_helper] [ 4.292188] [<ffffffffc00d0f13>] drm_fb_helper_restore_fbdev_mode_unlocked+0x33/0x80 [drm_kms_helper] [ 4.292196] [<ffffffffc00d0f8d>] drm_fb_helper_set_par+0x2d/0x50 [drm_kms_helper] [ 4.292235] [<ffffffffc01a4a4a>] intel_fbdev_set_par+0x1a/0x60 [i915] [ 4.292239] [<ffffffff81444970>] fbcon_init+0x570/0x5f0 [ 4.292243] [<ffffffff814d61fa>] visual_init+0xca/0x130 [ 4.292246] [<ffffffff814d80f1>] do_bind_con_driver+0x1c1/0x3a0 [ 4.292249] [<ffffffff814d8609>] do_take_over_console+0x149/0x1a0 [ 4.292251] [<ffffffff814407f7>] do_fbcon_takeover+0x57/0xb0 [ 4.292254] [<ffffffff814453e8>] fbcon_event_notify+0x658/0x750 [ 4.292256] [<ffffffff8109d61a>] notifier_call_chain+0x4a/0x70 [ 4.292258] [<ffffffff8109d957>] __blocking_notifier_call_chain+0x47/0x60 [ 4.292260] [<ffffffff8109d986>] blocking_notifier_call_chain+0x16/0x20 [ 4.292262] [<ffffffff8144b07b>] fb_notifier_call_chain+0x1b/0x20 [ 4.292265] [<ffffffff8144d1ef>] register_framebuffer+0x20f/0x350 [ 4.292274] [<ffffffffc00d123a>] drm_fb_helper_initial_config+0x28a/0x420 [drm_kms_helper] [ 4.292313] [<ffffffffc01a554b>] intel_fbdev_initial_config+0x1b/0x20 [i915] [ 4.292315] [<ffffffff8109f118>] async_run_entry_fn+0x48/0x150 [ 4.292318] [<ffffffff8109637a>] process_one_work+0x1aa/0x440 [ 4.292320] [<ffffffff8109665b>] worker_thread+0x4b/0x4c0 [ 4.292323] [<ffffffff81096610>] ? process_one_work+0x440/0x440 [ 4.292325] [<ffffffff8109c7d8>] kthread+0xd8/0xf0 [ 4.292328] [<ffffffff8109c700>] ? kthread_create_on_node+0x1a0/0x1a0 [ 4.292332] [<ffffffff817fc74f>] ret_from_fork+0x3f/0x70 [ 4.292335] [<ffffffff8109c700>] ? kthread_create_on_node+0x1a0/0x1a0 [ 4.292336] ---[ end trace 3fb1b9aeaaaaf1fa ]--- [ 4.292514] ------------[ cut here ]------------ [ 4.292523] WARNING: CPU: 0 PID: 6 at /home/kernel/COD/linux/drivers/gpu/drm/drm_atomic_helper.c:682 drm_atomic_helper_update_legacy_modeset_state+0x241/0x250 [drm_kms_helper]() [ 4.292534] Modules linked in: psmouse sdhci_pci pata_acpi i915 e100 mii firewire_ohci i2c_algo_bit drm_kms_helper sdhci syscopyarea sysfillrect firewire_core sysimgblt crc_itu_t fb_sys_fops drm fjes video [ 4.292536] CPU: 0 PID: 6 Comm: kworker/u4:0 Tainted: G W 4.4.0-999-generic #201512120150 [ 4.292537] Hardware name: TOSHIBA Equium A100/MPAD-MSAE Customer Reference Boards, BIOS 2.10 10/23/2006 [ 4.292540] Workqueue: events_unbound async_run_entry_fn [ 4.292543] 0000000000000000 000000006a781c97 ffff8800bb7df8f8 ffffffff813c8b04 [ 4.292545] 0000000000000000 ffff8800bb7df930 ffffffff8107d692 ffff880035bbc800 [ 4.292548] ffff8800b4ed1000 ffff880035a06800 0000000000000000 ffff880035af4c80 [ 4.292548] Call Trace: [ 4.292551] [<ffffffff813c8b04>] dump_stack+0x44/0x60 [ 4.292553] [<ffffffff8107d692>] warn_slowpath_common+0x82/0xc0 [ 4.292555] [<ffffffff8107d7da>] warn_slowpath_null+0x1a/0x20 [ 4.292563] [<ffffffffc00cb5f1>] drm_atomic_helper_update_legacy_modeset_state+0x241/0x250 [drm_kms_helper] [ 4.292602] [<ffffffffc018fdcb>] intel_atomic_commit+0x56b/0x6f0 [i915] [ 4.292621] [<ffffffffc005851e>] ? drm_atomic_check_only+0x18e/0x590 [drm] [ 4.292639] [<ffffffffc0058957>] drm_atomic_commit+0x37/0x60 [drm] [ 4.292647] [<ffffffffc00ced0f>] restore_fbdev_mode+0x22f/0x260 [drm_kms_helper] [ 4.292655] [<ffffffffc00d0f13>] drm_fb_helper_restore_fbdev_mode_unlocked+0x33/0x80 [drm_kms_helper] [ 4.292663] [<ffffffffc00d0f8d>] drm_fb_helper_set_par+0x2d/0x50 [drm_kms_helper] [ 4.292702] [<ffffffffc01a4a4a>] intel_fbdev_set_par+0x1a/0x60 [i915] [ 4.292704] [<ffffffff81444970>] fbcon_init+0x570/0x5f0 [ 4.292707] [<ffffffff814d61fa>] visual_init+0xca/0x130 [ 4.292709] [<ffffffff814d80f1>] do_bind_con_driver+0x1c1/0x3a0 [ 4.292712] [<ffffffff814d8609>] do_take_over_console+0x149/0x1a0 [ 4.292715] [<ffffffff814407f7>] do_fbcon_takeover+0x57/0xb0 [ 4.292717] [<ffffffff814453e8>] fbcon_event_notify+0x658/0x750 [ 4.292719] [<ffffffff8109d61a>] notifier_call_chain+0x4a/0x70 [ 4.292721] [<ffffffff8109d957>] __blocking_notifier_call_chain+0x47/0x60 [ 4.292723] [<ffffffff8109d986>] blocking_notifier_call_chain+0x16/0x20 [ 4.292725] [<ffffffff8144b07b>] fb_notifier_call_chain+0x1b/0x20 [ 4.292727] [<ffffffff8144d1ef>] register_framebuffer+0x20f/0x350 [ 4.292736] [<ffffffffc00d123a>] drm_fb_helper_initial_config+0x28a/0x420 [drm_kms_helper] [ 4.292775] [<ffffffffc01a554b>] intel_fbdev_initial_config+0x1b/0x20 [i915] [ 4.292777] [<ffffffff8109f118>] async_run_entry_fn+0x48/0x150 [ 4.292779] [<ffffffff8109637a>] process_one_work+0x1aa/0x440 [ 4.292781] [<ffffffff8109665b>] worker_thread+0x4b/0x4c0 [ 4.292784] [<ffffffff81096610>] ? process_one_work+0x440/0x440 [ 4.292786] [<ffffffff8109c7d8>] kthread+0xd8/0xf0 [ 4.292789] [<ffffffff8109c700>] ? kthread_create_on_node+0x1a0/0x1a0 [ 4.292791] [<ffffffff817fc74f>] ret_from_fork+0x3f/0x70 [ 4.292793] [<ffffffff8109c700>] ? kthread_create_on_node+0x1a0/0x1a0 [ 4.292795] ---[ end trace 3fb1b9aeaaaaf1fb ]--- -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1525509 Title: regression on 4.3.x: i945/Display corruption (before X, X never starts)) Status in linux package in Ubuntu: Confirmed Bug description: This laptop works with 4.2.0-19 and fails with 4.3.0-2. At boot (before X) the display is corrupt - with the entire screen shifted halfway across the screen with the kernel boot text mostly readable, just shifted over (and some crud at the top). X doesn't start. Returning to 4.2.0-19 (as now) and it's fine. In the 4.3.0-2 world I see the following warning in the dmesg: [ 14.118080] WARNING: CPU: 1 PID: 14 at /build/linux-Os09TY/linux-4.3.0/drivers/gpu/drm/drm_atomic.c:491 drm_atomic_check_only+0x46e/0x540 [drm]() [ 14.119902] Modules linked in: parport_pc ppdev lp parport autofs4 i915 i2c_algo_bit drm_kms_helper syscopyarea firewire_ohci sysfillrect sysimgblt fb_sys_fops psmouse firewire_core sdhci_pci e100 pata_acpi mii sdhci crc_itu_t drm fjes video [ 14.123614] CPU: 1 PID: 14 Comm: kworker/1:0 Tainted: G W 4.3.0-2-generic #11-Ubuntu [ 14.125467] Hardware name: TOSHIBA Equium A100/MPAD-MSAE Customer Reference Boards, BIOS 2.10 10/23/2006 [ 14.127339] Workqueue: events output_poll_execute [drm_kms_helper] [ 14.129181] 0000000000000000 00000000fe15c8fd ffff8800bb01ba38 ffffffff813d23a4 [ 14.131009] 0000000000000000 ffff8800bb01ba70 ffffffff8107d082 ffff88003590a000 [ 14.132820] ffff8800b4d61400 0000000000000001 0000000000000000 ffff8800ba182e00 [ 14.134621] Call Trace: [ 14.136413] [<ffffffff813d23a4>] dump_stack+0x44/0x60 [ 14.138207] [<ffffffff8107d082>] warn_slowpath_common+0x82/0xc0 [ 14.139990] [<ffffffff8107d1ca>] warn_slowpath_null+0x1a/0x20 [ 14.141782] [<ffffffffc004ab9e>] drm_atomic_check_only+0x46e/0x540 [drm] [ 14.143569] [<ffffffffc004ad5d>] ? drm_atomic_set_fb_for_plane+0x2d/0x90 [drm] [ 14.145374] [<ffffffffc004ac87>] drm_atomic_commit+0x17/0x60 [drm] [ 14.147211] [<ffffffffc01b3ba5>] intel_get_load_detect_pipe+0x3d5/0x530 [i915] [ 14.149029] [<ffffffffc01eac8d>] intel_tv_detect+0x13d/0x5f0 [i915] [ 14.150801] [<ffffffffc004546e>] ? drm_get_edid+0x3e/0x3f0 [drm] [ 14.152543] [<ffffffff817f9d36>] ? schedule_hrtimeout_range_clock.part.23+0xa6/0x150 [ 14.154271] [<ffffffffc011dd05>] drm_helper_probe_single_connector_modes_merge_bits+0x235/0x4d0 [drm_kms_helper] [ 14.156025] [<ffffffffc011dfb3>] drm_helper_probe_single_connector_modes+0x13/0x20 [drm_kms_helper] [ 14.157757] [<ffffffffc01297fc>] drm_fb_helper_hotplug_event+0x8c/0x120 [drm_kms_helper] [ 14.159513] [<ffffffffc01c39fe>] intel_fbdev_output_poll_changed+0x1e/0x30 [i915] [ 14.161261] [<ffffffffc011d657>] drm_kms_helper_hotplug_event+0x27/0x30 [drm_kms_helper] [ 14.163031] [<ffffffffc011d857>] output_poll_execute+0x197/0x1e0 [drm_kms_helper] [ 14.164808] [<ffffffff810961aa>] process_one_work+0x1aa/0x440 [ 14.166567] [<ffffffff8109648b>] worker_thread+0x4b/0x4c0 [ 14.168326] [<ffffffff81096440>] ? process_one_work+0x440/0x440 [ 14.170068] [<ffffffff8109c6e8>] kthread+0xd8/0xf0 [ 14.171821] [<ffffffff8109c610>] ? kthread_create_on_node+0x1e0/0x1e0 [ 14.173577] [<ffffffff817fae8f>] ret_from_fork+0x3f/0x70 [ 14.175317] [<ffffffff8109c610>] ? kthread_create_on_node+0x1e0/0x1e0 [ 14.177081] ---[ end trace cdd47054bd68533c ]--- This is running an up to date Xenial. Dave ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.3.0-2-generic 4.3.0-2.11 ProcVersionSignature: Ubuntu 4.2.0-19.23-generic 4.2.6 Uname: Linux 4.2.0-19-generic x86_64 ApportVersion: 2.19.3-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: dg 1407 F.... pulseaudio CurrentDesktop: KDE Date: Sat Dec 12 12:41:55 2015 HibernationDevice: RESUME=/dev/mapper/davros--vg-swap_1 InstallationDate: Installed on 2013-11-15 (756 days ago) InstallationMedia: Ubuntu-Server 14.04 LTS "Trusty Tahr" - Alpha amd64 (20131115) Lsusb: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: TOSHIBA Equium A100 PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-19-generic root=/dev/mapper/hostname--vg-root ro RelatedPackageVersions: linux-restricted-modules-4.2.0-19-generic N/A linux-backports-modules-4.2.0-19-generic N/A linux-firmware 1.154 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: yes SourcePackage: linux UpgradeStatus: Upgraded to xenial on 2015-11-08 (33 days ago) dmi.bios.date: 10/23/2006 dmi.bios.vendor: Phoenix Technologies LTD dmi.bios.version: 2.10 dmi.board.name: MPAD-MSAE Customer Reference Boards dmi.board.vendor: Intel Corporation dmi.board.version: Not Applicable dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 1 dmi.chassis.vendor: No Enclosure dmi.chassis.version: N/A dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr2.10:bd10/23/2006:svnTOSHIBA:pnEquiumA100:pvrPSAABE-00J008EN:rvnIntelCorporation:rnMPAD-MSAECustomerReferenceBoards:rvrNotApplicable:cvnNoEnclosure:ct1:cvrN/A: dmi.product.name: Equium A100 dmi.product.version: PSAABE-00J008EN dmi.sys.vendor: TOSHIBA To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1525509/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
