Hello, I'm running latest kernel on my PC and when suspending the system, there is a lot of warnings/errors from i915 driver ... The following are indicated while suspending: [drm:intel_cleanup_ring_buffer] *ERROR* failed to quiesce render ring whilst cleaning up: -16 There was an enormous amount of such warnings in rc3/rc4, but with the latest fixes the number is significantly reduced - some still remaining though: [10360.310580] WARNING: at drivers/gpu/drm/i915/i915_drv.c:322 gen6_gt_force_wake_get+0xec/0x100 [i915]() [10360.310607] [<ffffffff8105c5ef>] warn_slowpath_common+0x7f/0xc0 [10360.310609] [<ffffffff8105c64a>] warn_slowpath_null+0x1a/0x20 [10360.310613] [<ffffffffa023575c>] gen6_gt_force_wake_get+0xec/0x100 [i915] [10360.310619] [<ffffffffa024ee34>] i915_save_state+0x54/0x880 [i915] [10360.310627] [<ffffffffa01a5e17>] ? drm_irq_uninstall+0x197/0x1c0 [drm] [10360.310631] [<ffffffffa0235066>] i915_drm_freeze+0x66/0xc0 [i915] [10360.310635] [<ffffffffa02352b7>] i915_pm_suspend+0x47/0xa0 [i915] [10360.310698] WARNING: at drivers/gpu/drm/i915/i915_drv.c:340 gen6_gt_force_wake_put+0x58/0x60 [i915]() [10360.310716] [<ffffffff8105c5ef>] warn_slowpath_common+0x7f/0xc0 [10360.310718] [<ffffffff8105c64a>] warn_slowpath_null+0x1a/0x20 [10360.310722] [<ffffffffa02357c8>] gen6_gt_force_wake_put+0x58/0x60 [i915] [10360.310727] [<ffffffffa024ee47>] i915_save_state+0x67/0x880 [i915] [10360.310731] [<ffffffffa01a5e17>] ? drm_irq_uninstall+0x197/0x1c0 [drm] [10360.310735] [<ffffffffa0235066>] i915_drm_freeze+0x66/0xc0 [i915] [10360.310739] [<ffffffffa02352b7>] i915_pm_suspend+0x47/0xa0 [i915] [10360.311290] WARNING: at drivers/gpu/drm/i915/i915_drv.c:322 gen6_gt_force_wake_get+0xec/0x100 [i915]() [10360.311307] [<ffffffff8105c5ef>] warn_slowpath_common+0x7f/0xc0 [10360.311309] [<ffffffff8105c64a>] warn_slowpath_null+0x1a/0x20 [10360.311313] [<ffffffffa023575c>] gen6_gt_force_wake_get+0xec/0x100 [i915] [10360.311318] [<ffffffffa024f120>] i915_save_state+0x340/0x880 [i915] [10360.311322] [<ffffffffa01a5e17>] ? drm_irq_uninstall+0x197/0x1c0 [drm] [10360.311326] [<ffffffffa0235066>] i915_drm_freeze+0x66/0xc0 [i915] [10360.311330] [<ffffffffa02352b7>] i915_pm_suspend+0x47/0xa0 [i915] [10360.311388] WARNING: at drivers/gpu/drm/i915/i915_drv.c:340 gen6_gt_force_wake_put+0x58/0x60 [i915]() [10360.311405] [<ffffffff8105c5ef>] warn_slowpath_common+0x7f/0xc0 [10360.311407] [<ffffffff8105c64a>] warn_slowpath_null+0x1a/0x20 [10360.311411] [<ffffffffa02357c8>] gen6_gt_force_wake_put+0x58/0x60 [i915] [10360.311415] [<ffffffffa024f133>] i915_save_state+0x353/0x880 [i915] [10360.311419] [<ffffffffa01a5e17>] ? drm_irq_uninstall+0x197/0x1c0 [drm] [10360.311423] [<ffffffffa0235066>] i915_drm_freeze+0x66/0xc0 [i915] [10360.311427] [<ffffffffa02352b7>] i915_pm_suspend+0x47/0xa0 [i915] [10360.311456] WARNING: at drivers/gpu/drm/i915/i915_drv.c:322 gen6_gt_force_wake_get+0xec/0x100 [i915]() [10360.311473] [<ffffffff8105c5ef>] warn_slowpath_common+0x7f/0xc0 [10360.311475] [<ffffffff8105c64a>] warn_slowpath_null+0x1a/0x20 [10360.311479] [<ffffffffa023575c>] gen6_gt_force_wake_get+0xec/0x100 [i915] [10360.311483] [<ffffffffa024ef7b>] i915_save_state+0x19b/0x880 [i915] [10360.311487] [<ffffffffa01a5e17>] ? drm_irq_uninstall+0x197/0x1c0 [drm] [10360.311491] [<ffffffffa0235066>] i915_drm_freeze+0x66/0xc0 [i915] [10360.311495] [<ffffffffa02352b7>] i915_pm_suspend+0x47/0xa0 [i915] [10360.311523] WARNING: at drivers/gpu/drm/i915/i915_drv.c:340 gen6_gt_force_wake_put+0x58/0x60 [i915]() [10360.311540] [<ffffffff8105c5ef>] warn_slowpath_common+0x7f/0xc0 [10360.311542] [<ffffffff8105c64a>] warn_slowpath_null+0x1a/0x20 [10360.311546] [<ffffffffa02357c8>] gen6_gt_force_wake_put+0x58/0x60 [i915] [10360.311550] [<ffffffffa024ef8e>] i915_save_state+0x1ae/0x880 [i915] [10360.311554] [<ffffffffa01a5e17>] ? drm_irq_uninstall+0x197/0x1c0 [drm] [10360.311558] [<ffffffffa0235066>] i915_drm_freeze+0x66/0xc0 [i915] [10360.311562] [<ffffffffa02352b7>] i915_pm_suspend+0x47/0xa0 [i915] [10360.311589] WARNING: at drivers/gpu/drm/i915/i915_drv.c:322 gen6_gt_force_wake_get+0xec/0x100 [i915]() [10360.311607] [<ffffffff8105c5ef>] warn_slowpath_common+0x7f/0xc0 [10360.311608] [<ffffffff8105c64a>] warn_slowpath_null+0x1a/0x20 [10360.311612] [<ffffffffa023575c>] gen6_gt_force_wake_get+0xec/0x100 [i915] [10360.311616] [<ffffffffa024efb2>] i915_save_state+0x1d2/0x880 [i915] [10360.311621] [<ffffffffa01a5e17>] ? drm_irq_uninstall+0x197/0x1c0 [drm] [10360.311624] [<ffffffffa0235066>] i915_drm_freeze+0x66/0xc0 [i915] [10360.311628] [<ffffffffa02352b7>] i915_pm_suspend+0x47/0xa0 [i915] [10360.311706] WARNING: at drivers/gpu/drm/i915/i915_drv.c:340 gen6_gt_force_wake_put+0x58/0x60 [i915]() [10360.311723] [<ffffffff8105c5ef>] warn_slowpath_common+0x7f/0xc0 [10360.311725] [<ffffffff8105c64a>] warn_slowpath_null+0x1a/0x20 [10360.311729] [<ffffffffa02357c8>] gen6_gt_force_wake_put+0x58/0x60 [i915] [10360.311733] [<ffffffffa024efc5>] i915_save_state+0x1e5/0x880 [i915] [10360.311737] [<ffffffffa01a5e17>] ? drm_irq_uninstall+0x197/0x1c0 [drm] [10360.311741] [<ffffffffa0235066>] i915_drm_freeze+0x66/0xc0 [i915] [10360.311745] [<ffffffffa02352b7>] i915_pm_suspend+0x47/0xa0 [i915] and the following when resuming: [drm:drm_mode_getfb] *ERROR* invalid framebuffer id lspci -v shows the following for the details of the gpu: 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller]) Subsystem: Acer Incorporated [ALI] Device 0491 Flags: bus master, fast devsel, latency 0, IRQ 44 Memory at fe000000 (64-bit, non-prefetchable) [size=4M] Memory at d0000000 (64-bit, prefetchable) [size=256M] I/O ports at f000 [size=64] Expansion ROM at <unassigned> [disabled] Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [d0] Power Management version 2 Capabilities: [a4] PCI Advanced Features Kernel driver in use: i915 Kernel modules: i915 Despite the error/warnings, i haven't observed any problems with the display Please let me know if I can help in any way in debugging this ... Marcin _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
