[Bug 92171] [i915gm] vblank not available on crtc

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=92171

--- Comment #9 from pedromj <pedromj at gmail.com> ---
The same problem here while using va-api, which does not work, but also
spordadically (maybe after resuming from suspend).

HW:
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset
Integrated Graphics Controller (rev 07)
00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset
Integrated Graphics Controller (rev 07)

dmesg:
[137668.072773] ------------[ cut here ]------------
[137668.072809] WARNING: CPU: 0 PID: 1092 at drivers/gpu/drm/drm_irq.c:1121
drm_wait_one_vblank+0x190/0x1a0 [drm]()
[137668.072813] vblank not available on crtc 0, ret=-22
[137668.072815] Modules linked in: fuse cpufreq_stats rfcomm ctr ccm bnep msr
uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev
media joydev mousedev arc4 btusb iwldvm coretemp bluetooth hwmon led_class
kvm_intel mac80211 snd_hda_codec_hdmi psmouse tpm_infineon
snd_hda_codec_realtek snd_hda_codec_generic kvm snd_hda_intel serio_raw
snd_hda_controller lpc_ich sky2 iwlwifi snd_hda_codec snd_hwdep snd_pcm irda
snd_timer snd cfg80211 rfkill soundcore fan evdev crc_ccitt thermal shpchp
mac_hid intel_agp ac battery tpm_tis tpm sch_fq_codel usb_storage acpi_cpufreq
processor ext4 crc16 mbcache jbd2 sd_mod atkbd libps2 ahci libahci libata
scsi_mod ehci_pci uhci_hcd ehci_hcd usbcore usb_common i8042 serio i915 button
intel_gtt i2c_algo_bit video drm_kms_helper drm i2c_core
[137668.072895] CPU: 0 PID: 1092 Comm: Xorg Tainted: G     U  W     
3.19.2-1-ARCH #1
[137668.072898] Hardware name: SAMSUNG ELECTRONICS CO., LTD. X360              
        /X360                       , BIOS 10LM.M014.20100805.KSY 08/05/2010
[137668.072936]  0000000000000000 000000009d7700ab ffff8800b171f718
ffffffff8155cfdf
[137668.072942]  0000000000000000 ffff8800b171f770 ffff8800b171f758
ffffffff81073a4a
[137668.072948]  ffff88005c61f180 ffff8800b7280000 ffff8800b683e000
0000000000000000
[137668.072954] Call Trace:
[137668.072965]  [<ffffffff8155cfdf>] dump_stack+0x4c/0x6e
[137668.072974]  [<ffffffff81073a4a>] warn_slowpath_common+0x8a/0xc0
[137668.072980]  [<ffffffff81073ad5>] warn_slowpath_fmt+0x55/0x70
[137668.072997]  [<ffffffffa001f0e0>] drm_wait_one_vblank+0x190/0x1a0 [drm]
[137668.073031]  [<ffffffffa011403f>] ? gen4_read32+0x4f/0xd0 [i915]
[137668.073057]  [<ffffffffa01686b5>] intel_enable_tv+0x25/0x60 [i915]
[137668.073086]  [<ffffffffa0131eab>] i9xx_crtc_enable+0x3fb/0x4c0 [i915]
[137668.073113]  [<ffffffffa0130422>] __intel_set_mode+0x8a2/0xca0 [i915]
[137668.073140]  [<ffffffffa013607c>] intel_set_mode+0x7c/0xc0 [i915]
[137668.073166]  [<ffffffffa0121b3c>] ? intel_framebuffer_init+0x31c/0x440
[i915]
[137668.073192]  [<ffffffffa0136346>] intel_get_load_detect_pipe+0x286/0x620
[i915]
[137668.073218]  [<ffffffffa01692b4>] intel_tv_detect+0x134/0x5c0 [i915]
[137668.073235]  [<ffffffffa002fc74>] ? drm_do_probe_ddc_edid+0xe4/0x160 [drm]
[137668.073251]  [<ffffffffa007cbe3>]
drm_helper_probe_single_connector_modes_merge_bits+0x303/0x460 [drm_kms_helper]
[137668.073262]  [<ffffffffa007cd53>]
drm_helper_probe_single_connector_modes+0x13/0x20 [drm_kms_helper]
[137668.073278]  [<ffffffffa002b3cf>] drm_mode_getconnector+0x43f/0x4b0 [drm]
[137668.073294]  [<ffffffffa001ccef>] drm_ioctl+0x1df/0x680 [drm]
[137668.073305]  [<ffffffff811e4e48>] do_vfs_ioctl+0x2f8/0x500
[137668.073311]  [<ffffffff811ef592>] ? __fget+0x72/0xb0
[137668.073319]  [<ffffffff811e50d1>] SyS_ioctl+0x81/0xa0
[137668.073326]  [<ffffffff81562809>] system_call_fastpath+0x12/0x17
[137668.073331] ---[ end trace 1e14d3cc97b961a5 ]---

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