[Bug 54687] [ilk DP] pipe off timeout

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=54687

--- Comment #17 from Qingshuai Tian <qingshuai.tian at intel.com> ---
Created attachment 90911
  --> https://bugs.freedesktop.org/attachment.cgi?id=90911&action=edit
dmesg of I-G-T/display DP calltrace

I finished a round of IGT/display test with the latest drm-intel-next-queued
kernel(820c19).

We can still see the Calltrace as follows in the dmesg:
[  259.358172] WARNING: CPU: 3 PID: 3855 at
drivers/gpu/drm/i915/intel_display.c:857 intel_wait_for_pipe_off+0x131/0x138
[i915]()
[  259.358175] pipe_off wait timed out
[  259.358176] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_idt
iTCO_wdt iTCO_vendor_support dcdbas snd_hda_intel firewire_ohci pcspkr
snd_hda_codec lpc_ich snd_hwdep i2c_i801 mfd_core snd_pcm firewire_core
snd_page_alloc crc_itu_t snd_timer snd soundcore wmi battery ppdev parport_pc
 parport ac acpi_cpufreq joydev i915 video button drm_kms_helper drm
[  259.358209] CPU: 3 PID: 3855 Comm: testdisplay Tainted: G        W   
3.13.0-rc3_drm-intel-next-queued_820c19_20131218+ #3845
[  259.358212] Hardware name: Dell Inc. Latitude E6510/0JKDHD, BIOS A05
08/10/2010

And the 1920x1080i mode still can't be showed correctly as reported in Bug
58790.
CRTS(3):[0]  1920x1080i 60 1920 2008 2052 2200 1080 1084 1094 1125 0x15 0x40
74250

So I thing this situation may not have been improved a lot for now.
You can check the dmesg in the attachment. Hope it's helpful. :)

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