Intel G35 Chipset with Onkyo TX-SR875 Receiver and HDMI Out

[Rajesh Balan]

I have the ASUS P5E-VM-HDMI chipset with the Intel G35 chipset and Intel 
HDA audio. I'm using debian unstable with kernel 2.6.24 and latest git 
sources for the xorg intel graphics driver and the latest mercurial 
sources for the intel hda alsa audio driver.

I have the following issues.

1) I can't seem to get X working when I connect the HDMI output of the 
ASUS to my Onkyo TX-SR875 receiver. I've attached my xorg.conf and full 
debug Xorg.log outputs.

for reference, the 1280x720 mode in xorg.conf works when I connect the 
output directly to my samsung 42 inch plasma directly (model PS42C9H). 
It just gives a green screen when connected to the receiver. I've tried 
fiddling with various modes (1024x768, 1080p, etc.) but nothing seems to 
work.

any suggestions or sample xorg.conf files or modelines that I can try?

I can get output through the receiver when using the base console mode 
(the one you get if you boot without any vga=x options).

2) When connected directly to the tv, there are overscan issues. I can 
fix this by setting a mode on the tv to go from 16:9 format to "just 
scan". but this needs to be done every time I boot. I've tried playing 
with smaller resolutions (like 1225x672) and that helps but does not 
eliminate the problem. what can I do to fix this?

my tv dimensions are also reported wrongly. But i've corrected for this 
with the appropriate DisplaySize setting.

3) I enabled HDMI audio out using the latest (1.16) alsa drivers. for 
both direct to tv and via the receiver connections, audio plays 
flawlessly if the x server is not started. i.e., in console mode. On the 
receiver, pure audio mode is even selectable and plays flawlessly.

however, if the x server is running, the moment I enable the hdmi audio 
device (iec 1 in alsamixer), the screen starts flickering and I lose 
signal every now and then. I don't even need to play anything. I just 
need to unmute the iec device. if I play something, it pauses everytime 
signal is lost.

any suggestions for resolving this? It seems to be some wierd 
interaction between the intel driver, xorg, and alsa.

Rajesh
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