[Bug 73477] New: DP output not working on Baytrail Desktop

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=73477

          Priority: medium
            Bug ID: 73477
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: DP output not working on Baytrail Desktop
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: sarvatt at gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Intel
           Product: DRI

-- chipset: Intel Corporation ValleyView Gen7 [8086:0f31]
-- system architecture: x86_64
-- Linux distribution: Ubuntu 12.04.2
-- libdrm 2.4.43
-- Kernel versions affected: 3.13-rc4, drm-intel-nightly-01072014
-- xf86-video-intel: 2.20.9

The displayport output does not work on this baytrail machine on any kernel.
drm.debug=0xe dmesgs from 3.13-rc4 and drm-intel-nightly 01/07/2014 attached
with more info.



[  127.580641] ------------[ cut here ]------------
[  127.580674] WARNING: CPU: 2 PID: 1160 at
/home/apw/COD/linux/drivers/gpu/drm/i915/intel_display.c:1535
vlv_wait_port_ready+0x11a/0x140 [i915]()
[  127.580677] timed out waiting for port C ready: 0xf000a0ff
[  127.580680] Modules linked in: bnep rfcomm bluetooth parport_pc ppdev i915
snd_hda_codec_hdmi snd_hda_codec_realtek drm_kms_helper snd_hda_intel psmouse
drm snd_hda_codec dm_multipath scsi_dh snd_hwdep snd_pcm snd_seq_midi
snd_rawmidi snd_seq_midi_event snd_seq snd_timer hp_wmi snd_seq_device snd
sparse_keymap i2c_algo_bit video soundcore serio_raw snd_page_alloc mac_hid wmi
nls_iso8859_1 lp parport hid_generic usbhid hid dm_mirror dm_region_hash dm_log
btrfs usb_storage raid6_pq r8169 ahci libahci mii xor libcrc32c
[  127.580729] CPU: 2 PID: 1160 Comm: Xorg Not tainted 3.13.0-994-generic
#201401070405
[  127.580731] Hardware name: Hewlett-Packard Foo, BIOS 80.00 12/06/2013
[  127.580734]  00000000000005ff ffff8802332a3a18 ffffffff81756edc
0000000000000007
[  127.580740]  ffff8802332a3a68 ffff8802332a3a58 ffffffff81067bac
ffff88023425c000
[  127.580745]  ffff880230b9c000 00000000000000f0 00000000ffff577e
ffff8802304c1800
[  127.580750] Call Trace:
[  127.580759]  [<ffffffff81756edc>] dump_stack+0x46/0x58
[  127.580766]  [<ffffffff81067bac>] warn_slowpath_common+0x8c/0xc0
[  127.580770]  [<ffffffff81067c96>] warn_slowpath_fmt+0x46/0x50
[  127.580789]  [<ffffffffa037ae4a>] vlv_wait_port_ready+0x11a/0x140 [i915]
[  127.580810]  [<ffffffffa03927ee>] vlv_pre_enable_dp+0x11e/0x160 [i915]
[  127.580829]  [<ffffffffa037df24>] valleyview_crtc_enable+0x1e4/0x220 [i915]
[  127.580848]  [<ffffffffa037f817>] __intel_set_mode+0x2b7/0x3a0 [i915]
[  127.580866]  [<ffffffffa03810e6>] intel_set_mode+0x16/0x30 [i915]
[  127.580886]  [<ffffffffa038139d>] intel_crtc_set_config+0x29d/0x310 [i915]
[  127.580903]  [<ffffffffa02715bc>] drm_mode_set_config_internal+0x5c/0xe0
[drm]
[  127.580917]  [<ffffffffa0274b10>] drm_mode_setcrtc+0x310/0x4c0 [drm]
[  127.580929]  [<ffffffffa0264df3>] drm_ioctl+0x4d3/0x5f0 [drm]
[  127.580942]  [<ffffffffa0274800>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
[  127.580949]  [<ffffffff811d6865>] do_vfs_ioctl+0x75/0x2c0
[  127.580954]  [<ffffffff810226f5>] ? syscall_trace_enter+0x165/0x280
[  127.580958]  [<ffffffff811d6b41>] SyS_ioctl+0x91/0xb0
[  127.580963]  [<ffffffff8176cbbf>] tracesys+0xe1/0xe6
[  127.580966] ---[ end trace 12330e013531b2fd ]---

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