System information: Linux portable-londe 3.19.0-49-generic #55~14.04.1-Ubuntu SMP Fri Jan 22 11:24:31 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux Dell Inc. Inspiron 5558 with Ubuntu 14.04.3 LTS 64 bits - 8GB RAM - Bios A09 - Intel® Core™ i5-5200U CPU @ 2.20GHz × 4 - Intel® HD Graphics 5500
i got errors in the logs since the beginning: dmesg|grep ERROR [ 0.183435] acpi PNP0A08:00: _OSC failed (AE_ERROR); disabling ASPM [ 10.514448] [drm:gen8_irq_handler [i915_bpo]] *ERROR* The master control interrupt lied (SDE)! [ 10.514592] [drm:gen8_irq_handler [i915_bpo]] *ERROR* The master control interrupt lied (SDE)! [...] Then i connected the hdmi cable to the tv. The video on firefox or chrome stopped when i switch the sound to hdmi and Rhythmbox just stopped playing music. When i switched the sound output to internal boxes, every media started again. The errors above still occurs in the log dmesg. So i can say that the kernel 3.19 does not work with hdmi on my laptop. see dmesg in attachment. will test kernel 4.2 ** Attachment added: "dmesg" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1542934/+attachment/4571531/+files/dmesg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1542934 Title: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1542934/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs