Bug 94451
| Summary: | [REGRESSION] After update to 3.19.0 system hangs on resume with Xorg active | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | maxtram95 |
| Component: | Video(DRI - Intel) | Assignee: | intel-gfx-bugs (intel-gfx-bugs) |
| Status: | RESOLVED OBSOLETE | ||
| Severity: | normal | CC: | intel-gfx-bugs, maxtram95 |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 3.19.0 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: |
Commit that introduces regression
Partially revert faulty commit to make resume work again |
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Created attachment 174541 [details]
Partially revert faulty commit to make resume work again
Sorry, my previous git bisect result is incorrect. There was another bug that also caused hangs on resume. Now I did git bisect again to catch up only this bug, and it led me to aaecdf611a05cac26a94713bad25297e60225c29 (drm/i915: Stop gathering error states for CS error interrupts). Then I tried to compile current master (09d51602cf84a1264946711dd4ea0dddbac599a1) with the patch that partially reverts bad commit, and all things work. Please review that commit again. I attach the patch that partially reverts faulty commit and fixes resume on my laptop (MSI Wind U100+) when applied to current master (09d51602cf84a1264946711dd4ea0dddbac599a1). We seem to have neglected this bug. Apologies. If the problem persists with latest kernels, please file a bug at the freedesktop.org bugzilla [1], referencing this bug. Thank you. [1] https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel |
Created attachment 169611 [details] Commit that introduces regression My video card is Intel 945GSE. Update to 3.19.0 introduced regression: when I resume from suspend, and Xorg is running and active, system freezes with black screen, cursor doesn't blink, SysRq doesn't work. I did git bisect, first bad commit is e8115e79aa62b6ebdb3e8e61ca4092cc32938afc (Merge tag 'v3.18-rc7' into drm-next), diff is attached.