[Nouveau] [Bug 110660] GeForce GT 750M Mac Edition fullscreen issues

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110660

--- Comment #9 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to Alexey Kuznetsov from comment #8)
> Created attachment 144220 [details]
> lightdm xorg logs
> 
> I switched from gdm to lightdm and "No such file or directory" gone. Thanks
> to https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=748463 and 'sudo lsof
> /dev/dri/card0'
> 
> But graphics issues are the same!

OK well those logs look MUCH happier.

Now ... that "panel gets messed up with vertical white lines" thing is weird.
That feels like that would happen on a modeswitch, e.g. when switching into
full-screen mode of a game that's not running at 2880x1800, you want to change
resolutions. (e.g. to 1024x768).

Looks like we're not providing some setting quite right. Perhaps the panel
needs us to do scaling... here are the valid modes reported:

[    36.683] (II) NOUVEAU(0): Modeline "2880x1800"x60.0  337.75  2880 2928 2960
3040  1800 1803 1809 1852 +hsync -vsync (111.1 kHz eP)
[    36.683] (II) NOUVEAU(0): Modeline "1920x1200"x60.0  193.48  1920 2056 2256
2592  1200 1203 1209 1245 -hsync +vsync (74.6 kHz)
[    36.683] (II) NOUVEAU(0): Modeline "1920x1080"x60.0  173.11  1920 2048 2248
2576  1080 1083 1088 1120 -hsync +vsync (67.2 kHz)
[    36.683] (II) NOUVEAU(0): Modeline "1600x1200"x60.0  161.23  1600 1712 1880
2160  1200 1203 1207 1245 -hsync +vsync (74.6 kHz)
[    36.683] (II) NOUVEAU(0): Modeline "1680x1050"x60.0  146.36  1680 1784 1960
2240  1050 1053 1059 1089 -hsync +vsync (65.3 kHz)
[    36.683] (II) NOUVEAU(0): Modeline "1400x1050"x60.0  121.79  1400 1488 1632
1864  1050 1053 1057 1089 -hsync +vsync (65.3 kHz)
[    36.683] (II) NOUVEAU(0): Modeline "1280x1024"x59.9  109.10  1280 1368 1496
1712  1024 1027 1034 1063 -hsync +vsync (63.7 kHz)
[    36.683] (II) NOUVEAU(0): Modeline "1280x960"x60.0  101.34  1280 1360 1488
1696  960 963 967 996 -hsync +vsync (59.8 kHz)
[    36.683] (II) NOUVEAU(0): Modeline "1152x864"x60.0   81.77  1152 1216 1336
1520  864 867 871 897 -hsync +vsync (53.8 kHz)
[    36.683] (II) NOUVEAU(0): Modeline "1024x768"x59.9   63.53  1024 1072 1176
1328  768 771 775 798 -hsync +vsync (47.8 kHz)
[    36.683] (II) NOUVEAU(0): Modeline "800x600"x60.0   38.31  800 832 912 1024
 600 603 607 624 -hsync +vsync (37.4 kHz)
[    36.683] (II) NOUVEAU(0): Modeline "640x480"x59.9   23.98  640 664 720 800 
480 483 487 500 -hsync +vsync (30.0 kHz)
[    36.683] (II) NOUVEAU(0): Modeline "720x400"x60.0   22.41  720 744 808 896 
400 403 413 417 -hsync +vsync (25.0 kHz)
[    36.683] (II) NOUVEAU(0): Modeline "640x400"x60.0   20.00  640 664 720 800 
400 403 409 417 -hsync +vsync (25.0 kHz)
[    36.683] (II) NOUVEAU(0): Modeline "640x350"x59.8   17.52  640 664 720 800 
350 353 363 366 -hsync +vsync (21.9 kHz)

Can you try, one-by-one, switching to them (e.g. with xrandr -s 1920x1200) and
seeing if that's what causes the screwup? Is it only some modes, or any
non-2880x1800 mode?

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