Hi Angela, did you try with the latest patches from Peter? Peter: any idea for a next step since Angela still experienced the bug? Thank you, alfonso On Sat, Jan 21, 2012 at 11:25 AM, Angela Schmid <angela.schmid at wolke7.net> wrote: > Hello > I tested with the patches applied. Xrandr shows the available interlaced modes automatically. > xrandr --output VGA1 --off > xrandr --output HDMI3 --mode 1920x1080 --rate 25 > The television flickers. The lower part of the desktop is visible (lower menu with wastebin) in the upper left quadrant. > > I start with VGA1 connected too, so that grub is shown in 1024x768 mode. During boot both flicker, which they didn't before. Both > show a desktop in 1024x768 correct. Changing HDMI3 to 1920x1080, the VGA1 stays in the 1024x768 mode, both flicker. > With the noveau driver (GTX275) I hadn't any side-effects. > > I personally don't need a VGA1 connection, so I disconnected it for my test, see attached logs. > If screenshots are welcome, please tell me how. > > Yi already mentioned that SandyBridge still has a problem, which I can confirm for my GT2+. Any patches for testing are welcome. > > Angela > > Settings used: > wget http://paste.debian.net/download/152705 > wget http://paste.debian.net/download/152707 > wget http://paste.debian.net/download/152708 > > $ git am 152705 152707 152708 > Applying: drm/i915: specify vertical timings in frame units for interlaced modes (gen3+) > Applying: drm/i915: allow interlaced mode output on the SDVO connector > Applying: drm/i915: allow interlaced mode output on the HDMI connector > > > >> -----Original Message----- >> From: Angela Schmid [mailto:angela.schmid at wolke7.net] >> Sent: 20 January 2012 19:07 >> To: 'Alfonso Fiore'; 'Peter Ross' >> Cc: 'Daniel Vetter'; 'Rodrigo Vivi' >> Subject: RE: Sandy Bridge Desktop - 1920x1080i interlace not working >> >> Hello >> >> From my first mail: >> I have a Philips 37pf9830 television (at 1920x1080 only interlace possible) over Sandy Bridge HDMI. Changing to >> 1920x1080i is not working. >> Nvidia noveau with GTX275 (using yellow DVI->HDMI Adapter) , grub2 (vesa?), Windows 7 over HDMI and a Windows 7 >> laptop with AMD graphics with HDMI all work fine. >> I tried several other modelines, which work for the noveau driver, but not for the intel driver. >> The highest resolution possible is "1280x720 at 50hz" ? 74.25 ?1280 1720 1760 1980 ?720 725 730 750 +hsync +vsync >> >> When using only HDMI grub2 will start in 1080i but xorg is not visible afterwards. >> For booting I have to add a DVI display to start grub2 in a lower resolution. Either disconnect as soon as >> possible or I use xrandr -output VGA1 -off >> >> Addition: >> I hadn't time to test the fixes. I will have a look next week. >> >> Angela >> >> > -----Original Message----- >> > From: Alfonso Fiore [mailto:alfonso.fiore at gmail.com] >> > Sent: 20 January 2012 13:53 >> > To: Peter Ross >> > Cc: Daniel Vetter; Rodrigo Vivi; Angela Schmid >> > Subject: Re: Sandy Bridge Desktop - 1920x1080i interlace not working >> > >> > Angela, >> > >> > please have a look and comment below. >> > >> > thanks, >> > alfonso >> > >> > On Fri, Jan 20, 2012 at 1:40 PM, Peter Ross <pross at xvid.org> wrote: >> > > >> > > What concerns me is that some other folk have reported working >> > > interlaced output on the Sandy Bridge chipset. So I'm left thinking >> > > your TV device may be very fussy about the signal timings, hence >> > > why you get a blue 'no signal' screen. >> > > >> > > PATCH-v2 has a problem, where the vertical timings are off by >> > > two lines (giving 1920x1078i, instead of 1080i). Your TV may >> > > reject this mode, >> > > >> > > The enclosed patch corrects this problem. It should be applied on-top >> > > of the PATCHv2 set. Rebuild your kernel and try changing to an >> > > interlaced mode using xrandr. >> > > >> > > Otherwise, we have kind of exhausted all the readily available options >> > > here. The next step would be to reverse engineer the Intel windows >> > > driver, since you reported it to output 1080i to your TV. >> > >> > Peter, my apologies if I mislead you. >> > >> > I've never seen any 1080i resolution on my TV. Maybe Angela did? >> > >> > I only saw a working 1024x768 resolution (which is now achieved >> > constantly with the hack of connecting both VGA and HDMI cable to the >> > same TV). >> > >> > Can you please tell me which commands to apply the patch of the patch? >> > >> > thank you, >> > alfonso
