http://bugzilla.suse.com/show_bug.cgi?id=1047729
http://bugzilla.suse.com/show_bug.cgi?id=1047729#c16
--- Comment #16 from Takashi Iwai
I installed an old HP laptop with GM45 and could reproduce the issue after the cycle of suspend/resume.
With the renewed drm-kmp, it seems working. Please check it in your side, too. That's good to know. I've put the laptop into suspense mode about 20 times and everything seems okay so far.
So far, so good.
But I still got rendering errors in Plasma 5 and also dmesg shows some errors
I got this one right after login in: [ 27.816824] [drm] GPU HANG: ecode 4:0:0x828fffff, in X [1306], reason: Hang on render ring, action: reset
Is this a regression by the updated drm-kmp? I saw the similar hang message in your another report, so I suppose this happened before.
And that happens when the laptop goes into suspense mode. Not every time but 4 out of 20 times. [ 131.876806] [drm:i965_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun [ 488.647149] [drm:i965_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun [ 662.251064] [drm:i965_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun [ 745.751916] [drm:i965_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
The FIFO underrun isn't usually a big problem (but ugly, yes). The question regarding this bug is, however, whether it's a regression by the updated drm-kmp. If it happened with the old drm-kmp, it's fine. At least, I can proceed the current fix for covering the crash at PM. -- You are receiving this mail because: You are on the CC list for the bug.