[Bug 85670] New: [hsw DP] Haswell Iris 5100 DisplayPort stops working when USB device is connected
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Thu Oct 30 19:10:24 PDT 2014
https://bugs.freedesktop.org/show_bug.cgi?id=85670
Bug ID: 85670
Summary: [hsw DP] Haswell Iris 5100 DisplayPort stops working
when USB device is connected
Product: DRI
Version: unspecified
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: DRM/Intel
Assignee: intel-gfx-bugs at lists.freedesktop.org
Reporter: a.pronobis at gmail.com
QA Contact: intel-gfx-bugs at lists.freedesktop.org
CC: intel-gfx-bugs at lists.freedesktop.org
I'm using Ubuntu 14.10 with kernels 3.16 and 3.18 rc1. In both cases I am able
to successfully use my DisplayPort and display content on my external monitor.
My XRandr output when monitor is connected:
Screen 0: minimum 8 x 8, current 2560 x 1440, maximum 32767 x 32767
eDP1 connected primary 2560x1440+0+0 (normal left inverted right x axis y axis)
294mm x 165mm
2560x1440 60.0*+
1920x1440 60.0
1856x1392 60.0
1792x1344 60.0
1920x1200 60.0
1920x1080 59.9
1600x1200 60.0
1680x1050 60.0 59.9
1600x1024 60.2
1400x1050 60.0
1280x1024 60.0
1440x900 59.9
1280x960 60.0
1360x768 59.8 60.0
1152x864 60.0
1024x768 60.0
800x600 60.3 56.2
640x480 59.9
DP1 connected (normal left inverted right x axis y axis)
2560x1600 59.9 +
1920x1440 60.0
1920x1200 59.9
1600x1200 60.0
1680x1050 60.0
1280x1024 75.0 60.0
1280x800 59.8
1152x864 75.0
1024x768 75.1 60.0
800x600 75.0 60.3
640x480 75.0 60.0
720x400 70.1
HDMI1 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
However, attaching a usb device to a USB 3.0 port next to my DP port
immediately makes my external monitor black. If things happen in that order,
typically that is the only symptom, however, if the external monitor is
configured after the USB device is plugged in, then the following backtrace
appears in dmesg:
[ 57.685383] ------------[ cut here ]------------
[ 57.685396] WARNING: CPU: 0 PID: 1879 at
/build/buildd/linux-3.16.0/drivers/gpu/drm/i915/intel_dp.c:3122
intel_dp_link_down+0x1a9/0x230 [i915]()
[ 57.685397] Modules linked in: cdc_ether usbnet r8152 mii pci_stub
vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) autofs4 arc4 uvcvideo
videobuf2_vmalloc videobuf2_memops videobuf2_core btusb snd_soc_rt5640
v4l2_common intel_rapl asus_nb_wmi snd_soc_rl6231 x86_pkg_temp_thermal videodev
intel_powerclamp snd_soc_core asus_wmi media sparse_keymap snd_compress
coretemp snd_pcm_dmaengine snd_seq_midi snd_seq_midi_event kvm_intel
hid_multitouch kvm iwlmvm mac80211 crct10dif_pclmul crc32_pclmul snd_rawmidi
ghash_clmulni_intel aesni_intel iwlwifi aes_x86_64 lrw gf128mul bnep
glue_helper rfcomm ablk_helper snd_seq dm_multipath cryptd snd_hda_codec_hdmi
bluetooth scsi_dh snd_hda_codec_realtek snd_hda_codec_generic 6lowpan_iphc
joydev snd_hda_intel snd_hda_controller cfg80211 snd_hda_codec serio_raw
[ 57.685422] snd_hwdep snd_pcm mei_me lpc_ich mei shpchp snd_seq_device
snd_timer snd binfmt_misc dw_dmac mac_hid dw_dmac_core soundcore i2c_hid
8250_dw i2c_designware_platform snd_soc_sst_acpi i2c_designware_core
spi_pxa2xx_platform parport_pc intel_smartconnect ppdev lp nls_iso8859_1
parport dm_mirror dm_region_hash dm_log hid_generic usbhid hid i915 ahci
i2c_algo_bit drm_kms_helper libahci drm psmouse wmi video sdhci_acpi sdhci
[ 57.685439] CPU: 0 PID: 1879 Comm: Xorg Tainted: G W OE
3.16.0-24-generic #32-Ubuntu
[ 57.685440] Hardware name: ASUSTeK COMPUTER INC. UX301LAA/UX301LAA, BIOS
UX301LAA.206 12/31/2013
[ 57.685441] 0000000000000009 ffff8802115d7a68 ffffffff8277fcbc
0000000000000000
[ 57.685443] ffff8802115d7aa0 ffffffff8206fd8d ffff880035810000
0000000083000006
[ 57.685445] ffff880035ff0800 0000000000000001 ffff880035ff18d8
ffff8802115d7ab0
[ 57.685447] Call Trace:
[ 57.685450] [<ffffffff8277fcbc>] dump_stack+0x45/0x56
[ 57.685452] [<ffffffff8206fd8d>] warn_slowpath_common+0x7d/0xa0
[ 57.685455] [<ffffffff8206fe6a>] warn_slowpath_null+0x1a/0x20
[ 57.685467] [<ffffffffc04a72a9>] intel_dp_link_down+0x1a9/0x230 [i915]
[ 57.685479] [<ffffffffc04ac745>] intel_dp_complete_link_train+0x105/0x390
[i915]
[ 57.685491] [<ffffffffc04a4798>] intel_ddi_pre_enable+0x1a8/0x1f0 [i915]
[ 57.685503] [<ffffffffc048d39c>] haswell_crtc_enable+0x3ac/0xa30 [i915]
[ 57.685514] [<ffffffffc0490940>] __intel_set_mode+0x830/0xab0 [i915]
[ 57.685525] [<ffffffffc0493af6>] intel_set_mode+0x16/0x30 [i915]
[ 57.685536] [<ffffffffc0494bba>] intel_crtc_set_config+0xa4a/0xda0 [i915]
[ 57.685546] [<ffffffffc03f16d1>] drm_mode_set_config_internal+0x61/0xe0
[drm]
[ 57.685556] [<ffffffffc03f5413>] drm_mode_setcrtc+0x283/0x580 [drm]
[ 57.685563] [<ffffffffc03e5a4f>] drm_ioctl+0x1df/0x680 [drm]
[ 57.685566] [<ffffffff821f4bc8>] do_vfs_ioctl+0x2c8/0x4a0
[ 57.685568] [<ffffffff821e31a1>] ? __sb_end_write+0x31/0x60
[ 57.685570] [<ffffffff821e0d12>] ? vfs_write+0x1b2/0x1f0
[ 57.685572] [<ffffffff821f4e21>] SyS_ioctl+0x81/0xa0
[ 57.685575] [<ffffffff82787ced>] system_call_fastpath+0x1a/0x1f
[ 57.685576] ---[ end trace 79595adf5199c200 ]---
[ 57.688050] [drm:intel_dp_complete_link_train] *ERROR* failed to train DP,
aborting
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