Hello. I am running Ubuntu 16.04, with MATE installed later on it, using the latter currently. Beside normal system updates, I am using the Mesa stable ppa. Recently I started using DRI_PRIME=1 in some cases, to make the AMD videocard working. I found that it doesn't always work and the Intel one is used instead, like DRI_PRIME didn't even matter to it. This happens with Unigine Heaven, Steam and even glxinfo. Strangely, glxgears is not affected, it always does what it should be. I cannot reproduce this behaviour, it just happens sometimes. And it seems to solve itself after a reboot. Tell me, what you need to look into it. Thanks. 00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09) 03:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Venus PRO [Radeon HD 8850M / R9 M265X] (rev ff)
Please attach the corresponding Xorg log file, and the output of the following from when the problem occurs: * dmesg * LIBGL_DEBUG=verbose glxinfo 2>&1 * LIBGL_DEBUG=verbose glxgears -info 2>&1
It might sound lame, but since then I haven't encountered the situation. Maybe it was an update or I don't really know. For now, let's call this solved, hopefully it was truly something already fixed. Sorry for wasting your time, but when I decided to report, it was really annoying and happened every 1-2 days.
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