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<base href="https://bugs.freedesktop.org/">
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<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [drm:skl_set_power_well] *ERROR* power well 2 disable timeout"
href="https://bugs.freedesktop.org/show_bug.cgi?id=98564">98564</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[drm:skl_set_power_well] *ERROR* power well 2 disable timeout
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>DRI git
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jason@zx2c4.com
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>I get the following warning on "Intel(R) Xeon(R) CPU E3-1505M v5" which has a
"Intel(R) HD Graphics P530" on kernel 4.8.6:
[ 0.699782] [drm] Initialized drm 1.1.0 20060810
[ 0.699820] i915 0000:00:02.0: enabling device (0006 -> 0007)
[ 0.700556] [drm] Memory usable by graphics device = 4096M
[ 0.700559] [drm] VT-d active for gfx access
[ 0.700562] [drm] Replacing VGA console driver
[ 0.706467] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 0.706471] [drm] Driver supports precise vblank timestamp query.
[ 0.709225] [drm] Disabling framebuffer compression (FBC) to prevent screen
flicker with VT-d enabled
[ 0.709262] vgaarb: device changed decodes:
PCI:0000:00:02.0,olddecodes=io+mem,decodes=none:owns=mem
[ 0.714707] ACPI: Battery Slot [BAT0] (battery present)
[ 0.714989] [drm] Finished loading i915/skl_dmc_ver1_26.bin (v1.26)
[ 0.717683] ------------[ cut here ]------------
[ 0.717690] WARNING: CPU: 1 PID: 1 at
drivers/gpu/drm/i915/intel_runtime_pm.c:667 skl_set_power_well+0x5fc/0x610
[ 0.717693] Clearing unexpected KVMR request for power well 2
[ 0.717696] Modules linked in:
[ 0.717699] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.8.6-gentoo #1
[ 0.717702] Hardware name: LENOVO 20ENCTO1WW/20ENCTO1WW, BIOS N1EET58W (1.31
) 09/19/2016
[ 0.717705] 0000000000000000 ffffffff81307229 ffff881058bb7b68
0000000000000000
[ 0.717710] ffffffff81082309 ffff8810560e0000 ffff881058bb7bb8
0000000080000000
[ 0.717715] 000000000000000f 0000000000000000 ffffffff81c89ea0
ffffffff8108237a
[ 0.717719] Call Trace:
[ 0.717724] [<ffffffff81307229>] ? dump_stack+0x46/0x5d
[ 0.717728] [<ffffffff81082309>] ? __warn+0xb9/0xe0
[ 0.717731] [<ffffffff8108237a>] ? warn_slowpath_fmt+0x4a/0x50
[ 0.717735] [<ffffffff814225ce>] ?
gen8_irq_power_well_pre_disable+0xde/0x100
[ 0.717739] [<ffffffff81434e2c>] ? skl_set_power_well+0x5fc/0x610
[ 0.717742] [<ffffffff814361e5>] ? intel_display_power_put+0x95/0xe0
[ 0.717745] [<ffffffff8143624f>] ? intel_display_set_init_power+0x1f/0x40
[ 0.717749] [<ffffffff81497b68>] ? intel_modeset_setup_hw_state+0xc48/0xd90
[ 0.717752] [<ffffffff81470f00>] ? gen9_write16+0x3a0/0x3a0
[ 0.717755] [<ffffffff8149aa2f>] ? intel_modeset_init+0xccf/0x16b0
[ 0.717758] [<ffffffff814c7379>] ? intel_i2c_reset+0x39/0x40
[ 0.717761] [<ffffffff814c767a>] ? intel_setup_gmbus+0x29a/0x300
[ 0.717765] [<ffffffff8141827c>] ? i915_driver_load+0x77c/0x1430
[ 0.717768] [<ffffffff8133bf0a>] ? local_pci_probe+0x3a/0x90
[ 0.717771] [<ffffffff8133cac1>] ? pci_device_probe+0xd1/0x120
[ 0.717775] [<ffffffff814d8e51>] ? driver_probe_device+0x181/0x2b0
[ 0.717778] [<ffffffff814d900f>] ? __driver_attach+0x8f/0xa0
[ 0.717781] [<ffffffff814d8f80>] ? driver_probe_device+0x2b0/0x2b0
[ 0.717784] [<ffffffff814d7075>] ? bus_for_each_dev+0x55/0x90
[ 0.717787] [<ffffffff814d832f>] ? bus_add_driver+0x19f/0x210
[ 0.717791] [<ffffffff81d23c19>] ? mipi_dsi_bus_init+0xc/0xc
[ 0.717794] [<ffffffff814d97b2>] ? driver_register+0x52/0xc0
[ 0.717804] [<ffffffff810003e3>] ? do_one_initcall+0x33/0x140
[ 0.717808] [<ffffffff81ceafa1>] ? kernel_init_freeable+0x148/0x1c7
[ 0.717812] [<ffffffff81641015>] ? kernel_init+0x5/0x100
[ 0.717815] [<ffffffff8164630f>] ? ret_from_fork+0x1f/0x40
[ 0.717818] [<ffffffff81641010>] ? rest_init+0x70/0x70
[ 0.717821] ---[ end trace e87d156c40e5f35e ]---
[ 0.721959] [drm:skl_set_power_well] *ERROR* power well 2 disable timeout
[ 0.724743] [drm] GuC firmware load skipped
[ 0.747350] random: fast init done
[ 0.757903] [Firmware Bug]: ACPI(PEGP) defines _DOD but not _DOS
[ 0.757922] ACPI: Video Device [PEGP] (multi-head: yes rom: yes post: no)
[ 0.758073] input: Video Bus as
/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:01/LNXVIDEO:00/input/input3
[ 0.760831] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no)
[ 0.760949] input: Video Bus as
/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:01/input/input4
[ 0.760967] [drm] Initialized i915 1.6.0 20160711 for 0000:00:02.0 on minor
0</pre>
</div>
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