[Intel-gfx] HDMI TV doesn't work over HDMI cable

[Dmitry Nezhevenko]

On Sun, Apr 15, 2012 at 12:27:00PM -0300, Eugeni Dodonov wrote:
> could you open a bug on this and attach those Xorg log files together with
> the 'dmesg' output when booting with the 'drm.debug=0xe' kernel parameter?
> And also your kernel version? The
> http://intellinuxgraphics.org/how_to_report_bug.html has a nice summary on
> how to collect all the data we need.

Hi,

I've added all of this: https://bugs.freedesktop.org/show_bug.cgi?id=48740

> One thing that would certainly help is if you could attach the diff between
> running 'intel_reg_dumper' with DVI and HDMI connections (running it over
> ssh for example, if you don't have any valid output with HDMI). The 'no
> signal' message means that we are sending TV data that it does not
> understands, but there are many possible cases why it could happen..
> Intel_reg_dumper should give us a summary of what bits and registers could
> be wrong.
> 

Output looks same :(

--- reg_dumper_dvi.txt  2012-04-15 22:31:26.548920891 +0300
+++ reg_dumper_hdmi.txt 2012-04-15 22:31:31.212984536 +0300
@@ -150,8 +150,8 @@
                    FDI_RXB_IIR: 0x00000000
                    FDI_RXB_IMR: 0x000000ff
                       PCH_ADPA: 0x00f40018 (disabled, transcoder A, +hsync, +vsync)
-                         HDMIB: 0x80000adc (enabled pipe A 8bpc TMDS HDMI audio enabled +vsync +hsync detected)
-                         HDMIC: 0x0000001c (disabled pipe A 8bpc SDVO DVI audio disabled +vsync +hsync detected)
+                         HDMIB: 0x00000adc (disabled pipe A 8bpc TMDS HDMI audio enabled +vsync +hsync detected)
+                         HDMIC: 0x8000025c (enabled pipe A 8bpc SDVO HDMI audio enabled +vsync +hsync detected)
                          HDMID: 0x0000001c (disabled pipe A 8bpc SDVO DVI audio disabled +vsync +hsync detected)
                       PCH_LVDS: 0x40000000 (disabled, pipe B, 18 bit, 1 channel)
                      CPU_eDP_A: 0x00000018

I've added to bugreport that over HDMI cable TV doesn't work even in
BIOS/GRUB screen. Maybe it's intended or maybe not...
 
Thanks

-- 
WBR, Dmitry