Created attachment 111031 [details] dmesg ==System Environment== -------------------------- Regression: not sure Non-working platforms: BYT ==kernel== -------------------------- drm-intel-nightly/1eaf0ed4ec4f11915ff6a85abd910d753d28f5f4 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Thu Dec 18 23:01:25 2014 +0100 drm-intel-nightly: 2014y-12m-18d-22h-00m-57s UTC integration manifest ==Bug detailed description== ----------------------------- Run 3 times, it fails one in 3 runs. root@x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./pm_rpm --run-su btest i2c IGT-Version: 1.9-g6999b70 (x86_64) (Linux: 3.18.0_drm-intel-nightly_1eaf0e_20141 219+ x86_64) Runtime PM support: 1 PC8 residency support: 0 Test assertion failure function test_i2c, file pm_rpm.c:644: Failed assertion: i2c_edids == drm_edids Last errno: 6, No such device or address error: 1 != 2 Subtest i2c: FAIL (1.605s) root@x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./pm_rpm --run-subtest i2c IGT-Version: 1.9-g6999b70 (x86_64) (Linux: 3.18.0_drm-intel-nightly_1eaf0e_20141219+ x86_64) Runtime PM support: 1 PC8 residency support: 0 Subtest i2c: SUCCESS (4.903s) root@x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./pm_rpm --run-subtest i2c IGT-Version: 1.9-g6999b70 (x86_64) (Linux: 3.18.0_drm-intel-nightly_1eaf0e_20141219+ x86_64) Runtime PM support: 1 PC8 residency support: 0 Subtest i2c: SUCCESS (4.899s) ==Reproduce steps== ---------------------------- 1. ./pm_rpm --run-subtest i2c
It also fails on HSW.
Can you please confirm that it doesn't fail sporadically when you don't have VGA monitors attached? This will help checking if this bug is a duplicate of #84273.
(In reply to Paulo Zanoni from comment #2) > Can you please confirm that it doesn't fail sporadically when you don't have > VGA monitors attached? This will help checking if this bug is a duplicate of > #84273. Test unplug VGA, the result is skip. *** This bug has been marked as a duplicate of bug 84273 ***
Run 5 times, This issue does not exist with latest kenrel on BYT Verified it. ./pm_rpm --run-subtest i2cIGT-Version: 1.10-g1cfcca6 (x86_64) (Linux: 4.0.0-rc5_drm-intel-nightly_60c5b7_20150327+ x86_64) Runtime PM support: 1 PC8 residency support: 0 Subtest i2c: SUCCESS (5.644s)
Closing old verified.
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