[ANNOUNCE] xf86-video-intel 2.4.0

[Eric Piel]

Ben Gamari schreef:
> I too am experiencing LVDS flickering with xf86-video-intel from git.
> Every window opened I get,
> 
> (II) intel(0): EDID vendor "SEC", prod id 12885
> (II) intel(0): Printing DDC gathered Modelines:
> (II) intel(0): Modeline "1920x1200"x0.0  167.80  1920 2020 2052 2264
> 1200 1202 1208 1235 -hsync -vsync (74.1 kHz)
> (II) intel(0): EDID vendor "SEC", prod id 12885
> (EE) intel(0): underrun on pipe B!
> 
> in the Xorg.0.log.
Yes, I think the most interesting point here is the "underrun on pipe 
B". It goes away as soon as I activate the VGA output (not just 
plug-in)... exactly at the same time as the flickering stops. Compare:

Just the LVDS:

(II) intel(0): EDID vendor "CMO", prod id 4641
(EE) intel(0): underrun on pipe B!
(II) intel(0): EDID vendor "CMO", prod id 4641
(II) intel(0): Printing DDC gathered Modelines:
(II) intel(0): Modeline "1280x800"x0.0   69.39  1280 1320 1346 1412  800 
802 807 819 -hsync -vsync (49.1 kHz)

Then plugging in the VGA output:

(II) intel(0): EDID vendor "CMO", prod id 4641
(EE) intel(0): underrun on pipe B!
(II) intel(0): EDID vendor "HWP", prod id 9959
(II) intel(0): EDID vendor "CMO", prod id 4641
(II) intel(0): Printing DDC gathered Modelines:
(II) intel(0): Modeline "1280x800"x0.0   69.39  1280 1320 1346 1412  800 
802 807 819 -hsync -vsync (49.1 kHz)

Then activating the VGA output:

(II) intel(0): EDID vendor "CMO", prod id 4641
(II) intel(0): EDID vendor "HWP", prod id 9959
(II) intel(0): EDID vendor "CMO", prod id 4641
(II) intel(0): Printing DDC gathered Modelines:
(II) intel(0): Modeline "1280x800"x0.0   69.39  1280 1320 1346 1412  800 
802 807 819 -hsync -vsync (49.1 kHz)

Fixing this underrun could well be a first step to avoiding all the 
flickering...

See you,
Eric
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