Hi Daniel, I've only started full testing of 3.15 on one of my machines now that -rc7 has been released (this one had two issues in the radeon code, second was fixed in rc7). Unfortunately, suspend to RAM (pm-suspend), or rather the wake-up, is broken on this box [ my other two boxes are fine in rc7 ].
Bisection identified one of your commits - commit 25f397a429dfa43f22c278d0119a60a343aa568f Author: Daniel Vetter <[email protected]> Date: Fri Jul 19 18:57:11 2013 +0200 drm/crtc-helper: explicit DPMS on after modeset Atm the crtc helper implementation of set_config has really inconsisten semantics: If just an fb update is good enough, dpms state will be left as-is, but if we do a full modeset we force everything to dpms on. This change has already been applied to the i915 modeset code in ('git show' stops at that point) I have attempted to revert this commit from Linus' current tree, but git considered that there was a conflict, and I did not know how to address it, so I aborted. The conflict is : <<<<<<< HEAD if (connector->dpms != DRM_MODE_DPMS_ON) { DRM_DEBUG_KMS("connector dpms not on, full mode switch\n"); mode_changed = true; } ======= >>>>>>> parent of 25f397a429df... drm/crtc-helper: explicit DPMS on >>>>>>> after modeset break; } } The processor is an AMD A4 APU. The symptoms after this commit are that pm-suspend works (I invoke it from my keyboard's sleep key), i.e. the power LED on the case goes out and the monitor goes black and reports no signal. When I press a key to resume, the power LED comes on but the screen stays black. Magic-SysRQ does not work and I have to use the case switch to reboot. That results in filesystem errors which fsck fixes and warns about (probably, just a sign of unclean shutdown). The only thing in the log are a couple of messages from EXT4 at the end of putting the box to sleep - May 28 16:19:02 bluesbreaker kernel: [ 39.440859] EXT4-fs (sda10): re-mounted. Opts: commit=0 May 28 16:19:02 bluesbreaker kernel: [ 39.592318] EXT4-fs (sda13): re-mounted. Opts: commit=0 May 28 16:20:05 bluesbreaker syslogd 1.5.0: restart. What can I do to help debug this ? ĸen -- Nanny Ogg usually went to bed early. After all, she was an old lady. Sometimes she went to bed as early as 6 a.m. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
