Hello, so OK, this doesn't look too good. Tobias Jakobi wrote: > I checked with my panel just now and played around a bit with the DRM > (opening, vsync, etc.). However on deinitialization the entire system > locked up. I currently haven't hooked the board up to the serial > console, otherwise I would've tried to extract some more meaningful > information. > > Going to check again more thoroughly on the weekend what exactly > triggers the lockup. So, first of all I did my initial test with the exynos video backend of RetroArch. But it turns out that there's no fancy application needed. I now tested this with the 'modetest' application from libdrm, and did this: ./modetest -M exynos -s 16@13:1920x1080 setting mode 1920x1080-60Hz@XR24 on connectors 16, crtc 13 ^C ./modetest -M exynos -s 16@13:640x480 setting mode 640x480-60Hz@XR24 on connectors 16, crtc 13 ^C ./modetest -M exynos -s 16@13:640x480 setting mode 640x480-60Hz@XR24 on connectors 16, crtc 13 ^C ./modetest -M exynos -s 16@13:640x480 The board instantly died then. No kernel log output from the serial console, the heartbeat just stops and the board is dead. Need to power-cycle to get it running again. I'm unsure how to triage this at all. @Marek: Could you check if this also happens for you? With best wishes, Tobias -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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