Created attachment 106770 [details] dmesg ==System Environment== -------------------------- Regression: No. I don't find good commit on both kernel and igt. Here has the same issue on BYT before(bug 62940) Non-working platforms: HSW ==kernel== -------------------------- origin/drm-intel-nightly: 1c38dbc94bc61e685c72994cc9e634d4eb8c4da1(fails) drm-intel-nightly: 2014y-09m-23d-14h-26m-24s UTC integration manifest origin/drm-intel-next-queued: 9adccc6063d1cf6ba38a5a26b87001554105be18(fails) drm/i915: add SW tracking to FBC enabling origin/drm-intel-fixes: c84db77010877da6c5da119868ed54c43d59e726(fails) drm/i915/hdmi: fix hdmi audio state readout ==Bug detailed description== ----------------------------- igt/pm_rpm/i2c fails Output: [root@x-hsw24 tests]# ./pm_rpm --run-subtest i2c IGT-Version: 1.8-g4b81e9c (x86_64) (Linux: 3.17.0-rc6_drm-intel-nightly_1c38db_20140924+ 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 != 0 Subtest i2c: FAIL (0.322s) ==Reproduce steps== ---------------------------- 1. ./pm_rpm --run-subtest i2c
Update: Here has the same issue on BYT before(bug 82940)
Hi Just to confirm: this machine has only a VGA output attached, right? The bug does not happen if you use DP or HDMI, right? Thanks, Paulo
(In reply to comment #2) > Hi > > Just to confirm: this machine has only a VGA output attached, right? > > The bug does not happen if you use DP or HDMI, right? > > Thanks, > Paulo Yes, you are right, the failure only happens on VGA output. Plugged DP monitor then run the test, the result is pass.
The failure is able to reproduce on BYT too. root@x-byt06:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./pm_rpm --run-subtest i2c IGT-Version: 1.8-gbba1cd0 (x86_64) (Linux: 3.18.0-rc1_drm-intel-nightly_f2bcbc_20141021+ 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: 110, Connection timed out error: 0 != 1 Subtest i2c: FAIL (0.637s)
*** Bug 87481 has been marked as a duplicate of this bug. ***
Hi IGT commit f26d8a04c3938845d4db07cf6587b29e287dc2dc "tests/pm_rpm: I2C VGA detection is unreliable" should have fixed this problem. If the problem still persists, please reopen the bug. Thanks, Paulo
(In reply to Paulo Zanoni from comment #6) > Hi > > IGT commit f26d8a04c3938845d4db07cf6587b29e287dc2dc "tests/pm_rpm: I2C VGA > detection is unreliable" should have fixed this problem. > > If the problem still persists, please reopen the bug. > > Thanks, > Paulo Pass on nightly branch latest kernel commit 55f9f66fbe6a43bd4695a438cbd13dfb1e514cdb(2015-03-03). Close.
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