Monitor connected via HDMI stays black

[f00fbug]

Hi

I tried the Ubuntu 12.04-beta2 LiveCD and decided to click on install and after reboot I have only a black screen (Monitor shows: No Signal) but the system is up as I can ssh into the box and reboot/shutdown it remote. I have tried even a daily build but the same result no working monitor setup

CD image used: http://cdimages.ubuntu.com/daily-live/current/precise-desktop-amd64.iso

Monitor is a 24" with 2 HDMI Ports

connected to a Video Card with NVidia 9600 chip (HDMI Port)

I have tried also "nomodeset" but this change nothing. After that I tried openSUSE 12.1 and it works with it's standard driver "nouveau" so it seems an Ubuntu problem as Windows 7 works too with windows drivers (NVidia get not used on this box)

Apr 15 20:16:17 cruncher kernel: [ 104.204596] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 2
Apr 15 20:16:17 cruncher kernel: [ 104.204600] Raw EDID:
Apr 15 20:16:17 cruncher kernel: [ 104.204603] 00 ff ff ff ff ff ff 00 04 72 cf ad a0 bd 37 14
Apr 15 20:16:17 cruncher kernel: [ 104.204605] 2b 15 01 03 80 35 1e 78 ea 60 85 a6 56 4a 9c 25
Apr 15 20:16:17 cruncher kernel: [ 104.204607] 12 50 56 b3 0c 10 71 4f 81 00 95 00 d1 c0 81 40
Apr 15 20:16:17 cruncher kernel: [ 104.204609] 81 c0 b3 00 01 01 02 3a 80 18 71 38 2d 40 58 2c
Apr 15 20:16:17 cruncher kernel: [ 104.204611] 45 00 13 2b 21 00 00 1a 00 00 00 fc 00 53 32 34
Apr 15 20:16:17 cruncher kernel: [ 104.204613] 33 48 4c 0a 20 20 20 20 20 20 00 00 00 fd 00 37
Apr 15 20:16:17 cruncher kernel: [ 104.204615] 4b 1e 50 12 00 0a 20 20 20 20 20 20 00 00 00 ff
Apr 15 20:16:17 cruncher kernel: [ 104.204617] 00 4c 48 36 30 43 30 32 37 38 30 31 30 0a 01 80
Apr 15 20:16:18 cruncher kernel: [ 104.512880] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 53

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/982113/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Fabio Marconi (fabiomarconi)]

Hello
can you copy /var/log/Xorg.0.log and /var/log/kern.log from the affected machine and attach them here using the button below'Add attachment or patch' ?
Thanks
Fabio
---
Ubuntu Bug Squad volunteer triager
http://wiki.ubuntu.com/BugSquad

[f00fbug (topolm5678)]

I forgot to mention I used the yesterday's daily build April 14