i810+modesetting: (EE) I810(0): phase 0 out of range

[Eric Anholt]

On Fri, 2006-11-10 at 10:33 -0800, Eric Anholt wrote:
> On Fri, 2006-11-10 at 13:23 +0100, Sixer wrote:
> > Hi,
> > 
> > I've got an Intel Mac Mini running Ubuntu Edgy with an i945GM chipset  
> > hooked up to an HDTV with a 1920x540 native panel. The TV is hooked  
> > up through DVI --> HDMI, which has been successfully tested under OS  
> > X on the same machine and screen.
> > 
> > With the i810 driver in conjunction with i915resolution, I wouldn't  
> > get any valid mode retrieval from the display, i.e. all the modes  
> > would come out 0x0 Hz 0KHz and Xorg (7.1.1) would not start.
> > 
> > Now that I've installed the xf86-video-intel:modesetting driver by  
> > Eric Anholt, at least Xorg starts successfully, but I don't get  
> > anything on screen:
> > 
> > (II) I810(0): Supported additional Video Mode:
> > (II) I810(0): clock: 74.2 MHz   Image Size:  576 x 324 mm
> > (II) I810(0): h_active: 1920  h_sync: 2448  h_sync_end 2492  
> > h_blank_end 2640 h_border: 0
> > (II) I810(0): v_active: 540  v_sync: 542  v_sync_end 547 v_blanking:  
> > 562 v_border: 0
> > (II) I810(0): Supported additional Video Mode:
> > (II) I810(0): clock: 74.2 MHz   Image Size:  576 x 324 mm
> > (II) I810(0): h_active: 1920  h_sync: 2008  h_sync_end 2052  
> > h_blank_end 2200 h_border: 0
> > (II) I810(0): v_active: 540  v_sync: 542  v_sync_end 547 v_blanking:  
> > 562 v_border: 0
> > (II) I810(0): Monitor name: LT-26S60
> > (II) I810(0): Ranges: V min: 59  V max: 61 Hz, H min: 15  H max: 46  
> > kHz, PixClock max 80 MHz
> > (II) I810(0): Number of EDID sections to follow: 1
> > (II) I810(0): Valid Mode from Detailed timing table: 1920x540 (ht  
> > 2640 hss 2448 hse 2492 vt 562 vss 542 vse 547)
> > (II) I810(0): Valid Mode from Detailed timing table: 1920x540 (ht  
> > 2200 hss 2008 hse 2052 vt 562 vss 542 vse 547)
> > (II) I810(0): Total of 2 DDC mode(s) found.
> > [...]
> > (EE) I810(0): I830 Vblank Pipe Setup Failed
> > (EE) I810(0): Unable to read from SDVOCTRL_E for SDVOC slave 114.
> > (EE) I810(0): phase 0 out of range
> > (EE) I810(0): phase 0 out of range
> > 
> > My xorg.conf has the exact vertical and horizontal refresh rates for  
> > my TV.
> > 
> > I actually prefer to use 1280x720. If I take out the "1920x540"  
> > resolution from my Modes and leave in 1280x720 however, Xorg will say  
> > "No modes left for display" and dies. I was able to use 1280x720  
> > under OS X.
> > 
> > How do I at least get past the "phase 0 out of range" error, and if  
> > possible, how do I get Xorg to accept a different videomode than the  
> > native panel resolution?
> 
> For the future, please attach full logs instead of cut-down ones.
> 
> The phase 0 error message is debugging output recently added by keithp,
> but I'm pretty sure it's bogus, or at least not relevant for what you're
> dealing with.
> 
> We ignore vertical and horizontal limits currently, as we're in the
> process of moving the configuration logic out of the driver and into
> RandR.  However, since you've got DDC over this output, the hope would
> be that it would be choosing the correct mode.  So I don't know what the
> issue would be that you're seeing.  Maybe just a problem in our SDVO
> mode setting bits -- we're leaving a couple of bytes zero, which is
> likely wrong.

OK, those bytes are filled in now, and should have an effect on the mode
you're choosing for your TV (guessing, since I don't have the log).

-- 
Eric Anholt                             anholt at FreeBSD.org
eric at anholt.net                         eric.anholt at intel.com
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