On Fri, 28 Oct 2016, Fabian Pie <fpie@xxxxxxxxxxx> wrote: > Hi, > I'm testing Baytrail device with mipi/dsi display and hdmi output. When I > boot without the hdmi connected the mipi/dsi works OK and after connecting > the hdmi both mipi/dsi and hdmi display graphics OK. > If I boot with the hdmi connected it's selected by the bios as the default > display, Ubuntu only boots in hdmi and it works OK in this display but > MIPI/DSI is black. It's listed as connected by xrandr but I can't reset in > any way. > I didn't find this issue in your bug list. Have you seen anything similar ? > I'm using Ubuntu 16.10 with kernel 4.8.4 Probably the BIOS skips some DSI initialization in this case, and we fail to bring it up. Please file a bug over at [1], include the above description, add drm.debug=14 module parameter, attach dmesg all the way from boot for both the working and broken cases, plus /sys/kernel/debug/dri/0/i915_vbt. BR, Jani. [1] https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel -- Jani Nikula, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
