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Old 02-15-11, 11:36 AM   #25
Stephen Warren
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Default Re: No hdmi video on Asus AT3N7A-I with versions newer than 195.36.31

sandipt, Did you manage to repro mh9's issue? Is there an internal problem report filed for this issue. If so, could you post the problem report number here. Thanks.
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Old 02-15-11, 11:58 AM   #26
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Default Re: No hdmi video on Asus AT3N7A-I with versions newer than 195.36.31

Everyone,

In http://www.nvnews.net/vbulletin/showthread.php?t=159599, 3 users state that HDMI video doesn't work unless HDMI audio is played back. Can you please test and see if you have the same issue?

For complete details, see the HDMI audio sticky post. However, the short answer is to reproduce the problem of no video, somehow log into the machine (e.g. use Twinview with your desktop on a separate monitor, or SSH into your system) and then try running each of:

speaker-test -D hw:0,3 -c 2
speaker-test -D hw:0,7 -c 2
speaker-test -D hw:0,8 -c 2
speaker-test -D hw:0,9 -c 2

speaker-test -D hw:1,3 -c 2
speaker-test -D hw:1,7 -c 2
speaker-test -D hw:1,8 -c 2
speaker-test -D hw:1,9 -c 2

speaker-test -D hw:2,3 -c 2
speaker-test -D hw:2,7 -c 2
speaker-test -D hw:2,8 -c 2
speaker-test -D hw:2,9 -c 2

Do any of those solve your issue? Thanks.
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Old 02-15-11, 11:59 AM   #27
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Default Re: No hdmi video on Asus AT3N7A-I with versions newer than 195.36.31

For reference, it looks like this bug is described by problem report #779601.
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Old 02-15-11, 07:20 PM   #28
mh9
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Default Re: No hdmi video on Asus AT3N7A-I with versions newer than 195.36.31

Hello Stephen,

Yes, with the 270.26 driver the first command (speaker-test -D hw:0,3 -c 2) gave results identical to those posted in the the other thread. As long as the command was active, I had video. As soon as I Ctrl-C'ed out, the video went back to the "Weak or no signal" message.

Unfortunately, I can't say it "solves my issue." I can't run my audio over hdmi since I don't have an hdmi receiver. But it looks like you guys know what is going on now?

Thanks,
Michael
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Old 02-16-11, 01:14 PM   #29
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Default Re: No hdmi video on Asus AT3N7A-I with versions newer than 195.36.31

... well, if you do not need audio over hdmi, because you are using spdif or s.th., you can run "aplay -D hw:0,3 /dev/zero" to have video until this is solved.
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Old 02-16-11, 01:21 PM   #30
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Default Re: No hdmi video on Asus AT3N7A-I with versions newer than 195.36.31

Quote:
Originally Posted by freaksworth View Post
... well, if you do not need audio over hdmi, because you are using spdif or s.th., you can run "aplay -D hw:0,3 -c 2 /dev/zero" to have video until this is solved.
Hmm, what is "s.th."?

Yes, I am using spdif and I thought about doing what you suggest, but that's a pretty ugly hack. I might try it, or I might just keep using the old version until they get it straightened out.

Thanks!
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Old 02-18-11, 08:36 AM   #31
mh9
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Default Re: No hdmi video on Asus AT3N7A-I with versions newer than 195.36.31

For the others affected by this, I installed 270.26 and added the following to /etc/rc.local (had to modify freaksworth's command a little):

Code:
aplay -D hw:0,3 -c 2 -f dat /dev/zero &
The video now displays correctly and the command appears to use minimal resources.

Not sure if/how this works for those who need hdmi audio but it is a workaround for my spdif configuration...until nvidia implements a fix?

Thanks to all who helped!
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Old 04-01-11, 03:04 PM   #32
crajohns6965
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Default Re: No hdmi video on Asus AT3N7A-I with versions newer than 195.36.31

Is there any update/bug fix status on this issue? I'm using HDMI audio, and while I can sort of get it to work by disabling EDID and using modelines, it will sometimes drop out and go to weak or no signal after playing a movie (using xbmc). The video will come back after running the speaker test command (and leave again after ctrl-c'ing out of it). Would definitely like to have a permanent fix; this has been an issue since last summer for me.
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Old 04-06-11, 05:12 PM   #33
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Default Re: No hdmi video on Asus AT3N7A-I with versions newer than 195.36.31

Sorry for the slow updates. This turned out to be an interaction problem with a bug in the audio driver. If someone could test the attached patch, that would be awesome.

[edit] I should mention that that's a kernel patch against 2.6.39-rc1.
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