No HDMI output on 12.10, Intel HD graphics (Ironlake)
Solution 1
I've reported a similar problem here for Ubuntu 12.10, Dell XPS 14 ultrabook, and an Optoma HD20. Other projectors work fine. https://askubuntu.com/questions/247574/how-to-i-debug-blank-display-on-a-specific-model-of-projector
I've tried adding the modeline as described above, to no avail: the display is still blank, even though Displays recognizes that an external monitor is attached
EDIT: I submitted this launchpad bug: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1112859
Solution 2
Confirmed not working on 12.10 but was working on 12.04 I checked today. Different TV mine is Insignia. xranr has relatively identical output (aside from resolution differences)
Veazer
Updated on September 18, 2022Comments
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Veazer over 1 year
I am unable to get any output to my external monitor on 12.10. The monitor is recognized and shows the native res (1920x1080, correct) but enabling has no effect. Graphics chipset is Intel Ironlake (Arrandale).
I have tried:
- Full system update after installing
- Oibaf PPA updated drivers (https://launchpad.net/~oibaf/+archive/graphics-drivers)
- Enabling SNA
- Kubuntu 12.10 (in addition to Ubuntu 12.10) Both were fresh installs.
Nothing works, any troubleshooting ideas? Everything is fine on 11.10.
UPDATE 1: Also tried using Intel drivers from Xorg-Edgers PPA (https://launchpad.net/~xorg-edgers/+archive/ppa) Still no output on HDMI.
UPDATE 2: Just tried Lubuntu 12.10, same issue. It appears that any 12.10 downstream distro will likely have this issue.
UPDATE 3: Output from 'xrandr -q'
user@testbox:~$ xrandr -q Screen 0: minimum 320 x 200, current 3286 x 1080, maximum 8192 x 8192 LVDS1 connected 1366x768+0+312 (normal left inverted right x axis y axis) 256mm x 144mm 1366x768 60.0*+ 1360x768 59.8 60.0 1024x768 60.0 800x600 60.3 56.2 640x480 59.9 VGA1 disconnected (normal left inverted right x axis y axis) HDMI1 connected 1920x1080+1366+0 (normal left inverted right x axis y axis) 598mm x 337mm 1920x1080 60.0*+ 50.0 1680x1050 59.9 1680x945 60.0 1400x1050 74.9 59.9 1600x900 60.0 1280x1024 75.0 60.0 1440x900 75.0 59.9 1280x960 60.0 1366x768 60.0 1360x768 60.0 1280x800 74.9 59.9 1152x864 75.0 1280x768 74.9 60.0 1280x720 60.0 50.0 1024x768 75.0 70.1 60.0 1024x576 60.0 800x600 72.2 75.0 60.3 56.2 720x576 50.0 848x480 60.0 720x480 59.9 640x480 75.0 72.8 60.0 720x400 70.1 DP1 disconnected (normal left inverted right x axis y axis)
UPDATE 4: 'xrandr -q' output from Oneiric, HDMI working fine:
user@ptero:~$ xrandr -q Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192 LVDS1 connected (normal left inverted right x axis y axis) 1366x768 60.0 + 1360x768 59.8 60.0 1024x768 60.0 800x600 60.3 56.2 640x480 59.9 VGA1 disconnected (normal left inverted right x axis y axis) HDMI1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 598mm x 337mm 1920x1080 60.0*+ 1680x1050 60.0 1280x1024 60.0 1440x900 59.9 1280x720 60.0 1024x768 60.0 800x600 60.3 640x480 60.0 720x400 70.1 DP1 disconnected (normal left inverted right x axis y axis)
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Veazer over 11 yearsAs you can see from the xrandr output I added above, the system indicates the monitor is connected and working at the proper resolution. I've tried non-native resolutions for testing, nothing works. I performed your 4 steps anyway, substituting 'HDMI1' for 'HDMI-0', but the only things that happened was that step 4 briefly woke the monitor from standby for a few seconds.
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swift over 11 yearsok, sunny ... for test: disable SNA, remove Xorg-Edgers drivers, and test your HDMI output again on any other suitable driver ... so if it will work means that it was incorrect driver package.
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Veazer over 11 yearsIt was broken from the start, SNA and Xorg-Edgers were last ditch attempts to get HDMI working, so i tried HDMI heavily before adding those. As for the intellinuxgraphics drivers, those are what is in the Oibaf PPA, also not working unfortunately. What is the most appropriate place to file a bug report for this? No output to my monitor on 12.10 or any downstream distro is disturbing...
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swift over 11 yearsso maybe it's problem with a monitor? If xrandr shows that HDMI1 connected then ports is operable. Also, your config shows common desktop: LVDS1: 1366x768+0+312 and HDMI1: 1920x1080+1366+0, where 1366 & 312 shifts by x & y. It seems normal multihead cfg should be 1366x768+0+0 and 1920x1080+0+0
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Veazer over 11 yearsNope, Precise, Oneiric and Maverick all worked fine. Multihead coordinates are not necessarily what I wanted, I just wanted to demonstrate that even with both enabled (or just HDMI) there is no output to the HDMI monitor. Something is coming through, as the monitor does wake up any time I change resolutions, etc. I've added the xrandr output from Oneiric above as I normally use it, HDMI out only.
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swift over 11 yearsi thought it means problem with drivers almost exactly ... need view logs for xorg ...