Description of problem: After booting kernel-3.13.5-101 xrandr detects HDMI-0, but the DTV does not like the signal produced and the screen flickers and goes out after a minute. Then the DTV says "not detected", however; xrandr still shows it there and switching screen resolutions does not help. HDMI-0 connected 1920x1080+1366+0 (normal left inverted right x axis y axis) 853mm x 480mm 1920x1080 60.0*+ 59.9 24.0 24.0 Version-Release number of selected component (if applicable): How reproducible: Steps to Reproduce: 1. boot kernel-3.13.5-101 2. plug in HDMI digital TV 1920x1080p 3. wait Actual results: screen tearing device incompatibility Expected results: Works great with kernel <= 3.12.9-201 Additional info: No other things were changed, other than kernel upgrade. Switching back to kernel-3.12.9-201 works around the problem.
I am not very familiar with this, but it seems like something changed with either the type or frequency of the HDMI signal, or the EDID transmission information, or scheme.
Which graphics chip are you using? Is there anything in Xorg.0.log that indicates error? Can you attach the dmesg from a fresh boot?
I worked around the problem using the Visio DTV remote->menu->settings and turning off Game Mode. Then I was able to switch xrandr to 1920x1080i. This works well and matches the frequency of the laptop screen. Before, I was using --mode 1920x1080 without the "i" and Game Mode and the DTV would detect. Now the screen jumps up and down in that mode. No errors in Xorg.log. I can go ahead and use the 1080i mode. It seems to work just as well now that I turned off Game Mode. Will attach relevant messages, but we can call this successfully worked around for now. VIZIO 42” Class LCD TV (42.02" Diag.) MODEL NUMBER: E421VO
Created attachment 872883 [details] xrandr output
Nope. I spoke too soon. After a few minutes the TV starts blinking again, in any mode. Old kernel <= 3.12.9-201 still works though. Attaching dmesg.
Created attachment 872884 [details] dmesg
Model correction. I was looking at the wrong page. ~___~ VIZIO 39” Class LED TV (38.50" Diag.) MODEL NUMBER: E390-A1
Tested kernel-3.13.6-100.fc19 from updates-testing Same problem. Fedora detects it, but the TV says "No Support" Picture comes and goes. On the plus side, HDMI audio is starting to work with this kernel! However, audio cuts in and out with picture. :/
Created attachment 872984 [details] lspci -vv
Testing kernel-3.13.7-100.fc19.x86_64 TV detects as "Hdmi No Audio" <<< In my limited knowledge, I think the problem could be related to audio. I notice that the TV quit working on the kernel versions where HDMI audio started working. The TV does not yet detect the audio portion of the HDMI signal, and so it gets "confused" and blinks on and off. I will try to see if I can futz with the TV audio settings, or try to turn off audio on the PC side. Maybe that will work...
TV works with proprietary fglrx driver. Going away for the summer. No TV. Will try again in September with newer version of Fedora.