On Mon, 2016-01-04 at 16:25 +0100, Giuseppe Longo wrote: > Also, from dmesg: > [ 34.975654] [drm:r600_ring_test] *ERROR* radeon: ring 0 test > failed > (scratch(0x850C)=0xCAFEDEAD) > [ 34.975683] [drm:si_resume] *ERROR* si startup failed on resume > [ 34.976382] [drm:si_dpm_set_power_state] *ERROR* > si_upload_sw_state failed If the HDMI port is handled by the radeon card, it won't work until the driver and firmware works, and only if it is supported by the driver in jessie. The message above might be something related to having two GPUs: http://askubuntu.com/questions/457391/radeon-ring-0-test-failed-on-boot-ubuntu-14-04 Does the laptop have something like that? -- Cheers, Sven Arvidsson http://www.whiz.se PGP Key ID 6FAB5CD5
Attachment:
signature.asc
Description: This is a digitally signed message part