[Bug 94567] [SKL USB Type-C] connecting HDMI crashes kernel i915 (Dell XPS13 9350) Skylake, unable to get HDMI output with resolutions higher than 1440x900

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94567

--- Comment #23 from Daniel <kdebugs at staznosti.sk> ---
latest nightly
4.7.0-994-generic #201607152202 SMP Sat Jul 16 02:04:20 UTC 2016 x86_64 x86_64
x86_64 GNU/Linux

same old, same old:


CPU: 2 PID: 932 Comm: Xorg Tainted: G     U          4.7.0-994-generic
#201607152202
[   30.731935] Hardware name: Dell Inc. XPS 13 9350/0VM5NC, BIOS 1.4.4
06/14/2016
[   30.731936]  0000000000200286 00000000b0468fed ffffffff813212c5
ffff88046918b9d8
[   30.731938]  0000000000000000 ffffffff81078a3e ffff8804651d0000
ffff88046918ba30
[   30.731939]  ffff88046b074c00 ffff8804651d03d8 0000000000000000
ffff88046bd81000
[   30.731941] Call Trace:
[   30.731944]  [<ffffffff813212c5>] ? dump_stack+0x5c/0x77
[   30.731947]  [<ffffffff81078a3e>] ? __warn+0xbe/0xe0
[   30.731949]  [<ffffffff81078abf>] ? warn_slowpath_fmt+0x5f/0x80
[   30.731956]  [<ffffffffc00a8363>] ? drm_vblank_get+0x73/0xc0 [drm]
[   30.731964]  [<ffffffffc00a85af>] ? drm_wait_one_vblank+0x16f/0x1b0 [drm]
[   30.731983]  [<ffffffffc0351350>] ? gen9_write16+0x3c0/0x3c0 [i915]
[   30.731996]  [<ffffffffc0351350>] ? gen9_write16+0x3c0/0x3c0 [i915]
[   30.732005]  [<ffffffffc0304b7f>] ? skl_update_wm+0x3cf/0x550 [i915]
[   30.732019]  [<ffffffffc03734a7>] ? haswell_crtc_enable+0x797/0x860 [i915]
[   30.732033]  [<ffffffffc036f507>] ? intel_atomic_commit_tail+0x877/0x1090
[i915]
[   30.732046]  [<ffffffffc0377e06>] ? intel_prepare_plane_fb+0x146/0x280
[i915]
[   30.732059]  [<ffffffffc0370158>] ? intel_atomic_commit+0x438/0x560 [i915]
[   30.732069]  [<ffffffffc00c0ba2>] ?
drm_atomic_set_crtc_for_connector+0x92/0xf0 [drm]
[   30.732075]  [<ffffffffc012f6e9>] ? drm_atomic_helper_set_config+0x79/0xb0
[drm_kms_helper]
[   30.732082]  [<ffffffffc00af501>] ? drm_mode_set_config_internal+0x61/0x110
[drm]
[   30.732090]  [<ffffffffc00b3f55>] ? drm_mode_setcrtc+0x445/0x540 [drm]
[   30.732096]  [<ffffffffc00a6a40>] ? drm_ioctl+0x290/0x430 [drm]
[   30.732103]  [<ffffffffc00b3b10>] ? drm_mode_setplane+0x1c0/0x1c0 [drm]
[   30.732106]  [<ffffffff81209bed>] ? do_vfs_ioctl+0x9d/0x5c0
[   30.732107]  [<ffffffff81084ab7>] ? recalc_sigpending+0x17/0x50
[   30.732109]  [<ffffffff8108588d>] ? __set_task_blocked+0x3d/0x90
[   30.732110]  [<ffffffff8120a184>] ? SyS_ioctl+0x74/0x80
[   30.732112]  [<ffffffff810882cb>] ? SyS_rt_sigprocmask+0x8b/0xc0
[   30.732115]  [<ffffffff815ebb36>] ? entry_SYSCALL_64_fastpath+0x1e/0xa8
[   30.732116] ---[ end trace 78016e599128cca1 ]---

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