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------------------------------------------------------------------------
On 2015-02-12T16:39:02+00:00 Sitsofe Wheeler wrote:

Created attachment 113413
EeePC dmesg

Description of the problem:
When I boot up a v3.19 kernel on my EeePC 900 I get various drm_wait_one_vblank warnings.

Steps to reproduce:
1. Boot a v3.19 Linux kernel on an EeePC 900.

Expected results:
No warnings

Actual results:
Warnings like:
[    0.516749] WARNING: CPU: 0 PID: 10 at drivers/gpu/drm/drm_irq.c:1121 drm_wait_one_vblank+0x138/0x170()
[    0.516754] vblank not available on crtc 0, ret=-22

How reproducible is the problem?
It is reproducible every time.

Additional information:
Might be related to https://lkml.org/lkml/2015/1/31/198 .

Version information:
Ubuntu 14.04
EeePC 900
xorg 1:7.7+1ubuntu8
xserver-xorg 1:7.7+1ubuntu8
xserver-xorg-video-intel 2:2.99.910-0ubuntu1.4
Linux kernel 3.19

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1432405/comments/0

------------------------------------------------------------------------
On 2015-02-12T17:04:48+00:00 Jani-nikula wrote:

Please try drm-intel-nightly branch of http://cgit.freedesktop.org/drm-
intel

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1432405/comments/1

------------------------------------------------------------------------
On 2015-02-12T17:36:19+00:00 Sitsofe Wheeler wrote:

Sadly that kernel doesn't boot at all - just an empty black screen.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1432405/comments/2

------------------------------------------------------------------------
On 2015-02-13T07:17:00+00:00 Jani-nikula wrote:

(In reply to Sitsofe Wheeler from comment #2)
> Sadly that kernel doesn't boot at all - just an empty black screen.

Meh. What if you cherry pick

commit f9b61ff6bce9a44555324b29e593fdffc9a115bc
Author: Daniel Vetter <daniel.vetter@xxxxxxxx>
Date:   Wed Jan 7 13:54:39 2015 +0100

    drm/i915: Push vblank enable/disable past encoder->enable/disable

on top of v3.19?

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1432405/comments/3

------------------------------------------------------------------------
On 2015-02-13T15:36:44+00:00 Sitsofe Wheeler wrote:

Created attachment 113465
EeePC dmesg

f9b61ff6bce9a44555324b29e593fdffc9a115bc solves the drm_wait_one_vblank
warning but check_crtc_state (pipe state doesn't match!) still remains.
Do you want a separate bug for that?

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1432405/comments/4

------------------------------------------------------------------------
On 2015-02-18T16:11:04+00:00 Jani-nikula wrote:

(In reply to Sitsofe Wheeler from comment #4)
> Created attachment 113465 [details]
> EeePC dmesg
> 
> f9b61ff6bce9a44555324b29e593fdffc9a115bc solves the drm_wait_one_vblank
> warning but check_crtc_state (pipe state doesn't match!) still remains. Do
> you want a separate bug for that?

Sorry for the delay - yes please. I'll try to get the referenced commit
backported to v3.19 stable kernels.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1432405/comments/5

------------------------------------------------------------------------
On 2015-02-18T18:17:17+00:00 Sitsofe Wheeler wrote:

New issue filed as #89209 . Feel free to close this issue as resolved
when you're ready Jani!

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1432405/comments/6

------------------------------------------------------------------------
On 2015-03-02T10:27:37+00:00 Jani-nikula wrote:

http://mid.gmane.org/874mq3oif5.fsf@xxxxxxxxx

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1432405/comments/7

------------------------------------------------------------------------
On 2015-03-02T10:27:59+00:00 Jani-nikula wrote:

Thanks for the report.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1432405/comments/8


** Changed in: linux
       Status: Unknown => Fix Released

** Changed in: linux
   Importance: Unknown => Medium

-- 
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https://bugs.launchpad.net/bugs/1432405

Title:
  [Toshiba Equium A100-306] WARNING: CPU: 0 PID: 968 at
  /build/buildd/linux-3.19.0/drivers/gpu/drm/drm_irq.c:1121
  drm_wait_one_vblank+0x170/0x180 [drm]()

Status in The Linux Kernel:
  Fix Released
Status in linux package in Ubuntu:
  Triaged

Bug description:
  Noticed during boot of vivid after upgrade:

  [   54.762967] ------------[ cut here ]------------
  [   54.763009] WARNING: CPU: 1 PID: 968 at /build/buildd/linux-3.19.0/drivers/gpu/drm/drm_irq.c:1121 drm_wait_one_vblank+0x170/0x180 [drm]()
  [   54.763012] vblank not available on crtc 0, ret=-22
  [   54.763014] Modules linked in: binfmt_misc snd_hda_codec_si3054 arc4 snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel iwl3945 snd_hda_controller iwlegacy snd_hda_codec mac80211 snd_hwdep pcmcia snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi yenta_socket cfg80211 coretemp pcmcia_rsrc tifm_7xx1 snd_seq pcmcia_core tifm_core joydev lpc_ich serio_raw snd_seq_device snd_timer irda snd soundcore toshiba_bluetooth toshiba_haps crc_ccitt 8250_fintek tpm_infineon shpchp mac_hid parport_pc ppdev lp parport autofs4 psmouse firewire_ohci pata_acpi e100 sdhci_pci mii i915 sdhci firewire_core i2c_algo_bit crc_itu_t drm_kms_helper drm video
  [   54.763065] CPU: 1 PID: 968 Comm: Xorg Tainted: G        W      3.19.0-9-generic #9-Ubuntu
  [   54.763068] Hardware name: TOSHIBA Equium A100/MPAD-MSAE Customer Reference Boards, BIOS 2.10    10/23/2006
  [   54.763070]  ffffffffc02e2b70 ffff8800ba62b738 ffffffff817c09b5 0000000000000007
  [   54.763075]  ffff8800ba62b788 ffff8800ba62b778 ffffffff8107595a ffff8800ba62b758
  [   54.763079]  ffff880035480000 ffff880035fb2000 0000000000000000 ffff880035480000
  [   54.763083] Call Trace:
  [   54.763094]  [<ffffffff817c09b5>] dump_stack+0x45/0x57
  [   54.763099]  [<ffffffff8107595a>] warn_slowpath_common+0x8a/0xc0
  [   54.763103]  [<ffffffff810759d6>] warn_slowpath_fmt+0x46/0x50
  [   54.763118]  [<ffffffffc02b5e80>] drm_wait_one_vblank+0x170/0x180 [drm]
  [   54.763155]  [<ffffffffc03c53af>] ? gen4_read32+0x4f/0xc0 [i915]
  [   54.763186]  [<ffffffffc0417955>] intel_enable_tv+0x25/0x60 [i915]
  [   54.763212]  [<ffffffffc03e2d1b>] i9xx_crtc_enable+0x3fb/0x4c0 [i915]
  [   54.763239]  [<ffffffffc03e12b2>] __intel_set_mode+0x882/0xc80 [i915]
  [   54.763266]  [<ffffffffc03e6dfd>] intel_set_mode+0x6d/0x90 [i915]
  [   54.763293]  [<ffffffffc03e7096>] intel_get_load_detect_pipe+0x276/0x600 [i915]
  [   54.763298]  [<ffffffff811989d0>] ? zone_statistics+0x80/0xa0
  [   54.763328]  [<ffffffffc0418555>] intel_tv_detect+0x135/0x670 [i915]
  [   54.763342]  [<ffffffffc0322b13>] drm_helper_probe_single_connector_modes_merge_bits+0x303/0x460 [drm_kms_helper]
  [   54.763350]  [<ffffffffc0322c83>] drm_helper_probe_single_connector_modes+0x13/0x20 [drm_kms_helper]
  [   54.763369]  [<ffffffffc02c216f>] drm_mode_getconnector+0x43f/0x4b0 [drm]
  [   54.763383]  [<ffffffffc02b3adf>] drm_ioctl+0x1df/0x680 [drm]
  [   54.763390]  [<ffffffff812077b0>] do_vfs_ioctl+0x2e0/0x4e0
  [   54.763394]  [<ffffffff811f5755>] ? __sb_end_write+0x35/0x70
  [   54.763399]  [<ffffffff811f31c2>] ? vfs_write+0x1b2/0x1f0
  [   54.763403]  [<ffffffff81207a31>] SyS_ioctl+0x81/0xa0
  [   54.763407]  [<ffffffff817c7aed>] system_call_fastpath+0x16/0x1b
  [   54.763410] ---[ end trace 959064f9168f0b5b ]---

  repeats quite a few times during the boot.
  (3.19.0-9-generic #9-Ubuntu)
  Oldish Core2 laptop, internal LCD only running KDE.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-generic 3.19.0.9.8
  ProcVersionSignature: Ubuntu 3.19.0-9.9-generic 3.19.1
  Uname: Linux 3.19.0-9-generic x86_64
  ApportVersion: 2.16.2-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  dg         2008 F.... pulseaudio
  Date: Sun Mar 15 17:49:05 2015
  HibernationDevice: RESUME=/dev/mapper/davros--vg-swap_1
  InstallationDate: Installed on 2013-11-15 (485 days ago)
  InstallationMedia: Ubuntu-Server 14.04 LTS "Trusty Tahr" - Alpha amd64 (20131115)
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: TOSHIBA Equium A100
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-9-generic root=/dev/mapper/hostname--vg-root ro
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-9-generic N/A
   linux-backports-modules-3.19.0-9-generic  N/A
   linux-firmware                            1.143
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: yes
  SourcePackage: linux
  UpgradeStatus: Upgraded to vivid on 2015-03-15 (0 days ago)
  dmi.bios.date: 10/23/2006
  dmi.bios.vendor: Phoenix Technologies LTD
  dmi.bios.version: 2.10
  dmi.board.name: MPAD-MSAE Customer Reference Boards
  dmi.board.vendor: Intel Corporation
  dmi.board.version: Not Applicable
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 1
  dmi.chassis.vendor: No Enclosure
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr2.10:bd10/23/2006:svnTOSHIBA:pnEquiumA100:pvrPSAABE-00J008EN:rvnIntelCorporation:rnMPAD-MSAECustomerReferenceBoards:rvrNotApplicable:cvnNoEnclosure:ct1:cvrN/A:
  dmi.product.name: Equium A100
  dmi.product.version: PSAABE-00J008EN
  dmi.sys.vendor: TOSHIBA

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