On Wed, Feb 04, 2015 at 01:32:14PM +0100, Paul Bolle wrote: > Andrey Skvortsov schreef op zo 01-02-2015 om 00:16 [+0300]: > > this warning exist in v3.19-rc6 and does not in v3.18. Bisection > > points to the commit 51e31d49c890552 "drm/i915: Use generic vblank wait". > > I have two machines with integrated Intel graphics and the problem > > happens only on the old one with GM965 chipset and X3100 integrated graphics. > > I see this too, since v3.19-rc1, on an (outdated) ThinkPad X41. > > > backtrace information: > > > > [ 31.780813] WARNING: CPU: 0 PID: 718 at drivers/gpu/drm/drm_irq.c:1077 drm_wait_one_vblank+0x33/0x141 [drm]() > > But it also prints > vblank not available on crtc 0, ret=-22 > > after the WARNING line, on that machine. I have "vblank not available on crtc 1, ret=-22" there. > > [ 31.780862] thermal_sys(E) > > [ 31.780866] CPU: 0 PID: 718 Comm: kworker/u4:3 Tainted: G E 3.17.0-rc5-150116--00578-g51e31d4 #16 > > [ 31.780868] Hardware name: Dell Inc. Vostro 1500 /0NX907, BIOS A06 04/21/2008 > > [ 31.780873] Workqueue: events_unbound async_run_entry_fn > > [ 31.780875] 0000000000000000 ffffffffa0544b9d ffffffff813d4e81 0000000000000000 > > [ 31.780879] ffffffff8103dec3 ffff8800d84e0068 ffffffffa0521c73 0000000000070008 > > [ 31.780882] ffff8800d84e0000 ffff8801973e0800 0000000000000000 0000000000006014 > > [ 31.780886] Call Trace: > > [ 31.780890] [<ffffffff813d4e81>] ? dump_stack+0x4a/0x75 > > [ 31.780894] [<ffffffff8103dec3>] ? warn_slowpath_common+0x7e/0x97 > > [ 31.781050] [<ffffffffa0521c73>] ? drm_wait_one_vblank+0x33/0x141 [drm] > > [ 31.781078] [<ffffffffa0521c73>] ? drm_wait_one_vblank+0x33/0x141 [drm] > > [ 31.781122] [<ffffffffa096b13e>] ? intel_enable_tv+0x22/0x58 [i915] > > [ 31.781153] [<ffffffffa0940f3e>] ? i9xx_crtc_enable+0x33b/0x397 [i915] > > [ 31.781184] [<ffffffffa093f875>] ? __intel_set_mode+0x1160/0x1209 [i915] > > [ 31.781216] [<ffffffffa094590a>] ? intel_set_mode+0x12/0x2c [i915] > > [ 31.781247] [<ffffffffa0945d5a>] ? intel_get_load_detect_pipe+0x367/0x408 [i915] > > [ 31.781281] [<ffffffffa096bbc6>] ? intel_tv_detect+0x103/0x444 [i915] > > [ 31.781289] [<ffffffffa0729ee3>] ? drm_helper_probe_single_connector_modes_merge_bits+0xc0/0x327 [drm_kms_helper] > > [ 31.781296] [<ffffffffa072e946>] ? drm_fb_helper_probe_connector_modes+0x3d/0x51 [drm_kms_helper] > > [ 31.781303] [<ffffffffa0730026>] ? drm_fb_helper_initial_config+0x3d/0x303 [drm_kms_helper] > > [ 31.781306] [<ffffffff81055f62>] ? async_run_entry_fn+0x5a/0x110 > > [ 31.781310] [<ffffffff8105019d>] ? process_one_work+0x194/0x292 > > [ 31.781313] [<ffffffff810504fb>] ? worker_thread+0x236/0x298 > > [ 31.781316] [<ffffffff810502c5>] ? process_scheduled_works+0x2a/0x2a > > [ 31.781319] [<ffffffff8105401e>] ? kthread+0x9e/0xa6 > > [ 31.781322] [<ffffffff81053f80>] ? kthread_freezable_should_stop+0x36/0x36 > > [ 31.781326] [<ffffffff813d9aac>] ? ret_from_fork+0x7c/0xb0 > > [ 31.781329] [<ffffffff81053f80>] ? kthread_freezable_should_stop+0x36/0x36 > > [ 31.782726] ---[ end trace e2b78017f1a10054 ]--- > > -- Best regards, Andrey Skvortsov PGP Key ID: 0x57A3AEAD
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