This might be related to other reported bugs about EDID problems, but the context is sufficiently special that I report it as a separate bug. I'm using the same build of Xorg on my Intel MacMini both in EFI mode and in BIOS emulation mode (which people refer to as BootCamp). I'm using git master from 2007-04-17 for all components (I'm using util/modular/build.sh to build). As the summary says, the same driver successfully uses the monitor EDID data in BIOS emulation mode, but fails in pure EFI mode, as the following xrandr quotes demonstrate: BIOS mode: fred@minifunky:~$ xrandr Screen 0: minimum 320 x 200, current 1152 x 864, maximum 1280 x 1280 VGA connected 1152x864+0+0 (normal left inverted right) 306mm x 230mm 1280x1024 59.9 1280x960 59.9 1152x864 74.8* 1024x768 84.9 75.1 70.1 60.0 832x624 74.6 800x600 98.7 84.9 72.2 75.0 60.3 640x480 99.8 84.6 75.0 72.8 60.0 720x400 70.1 640x350 70.1 TMDS-1 connected 1024x768+0+0 (normal left inverted right) 0mm x 0mm 1024x768 60.0* 800x600 60.3 640x480 59.9 TV disconnected (normal left inverted right) EFI mode: fred@minifunky:~$ xrandr Screen 0: minimum 320 x 200, current 1024 x 768, maximum 1024 x 1024 VGA connected 1024x768+0+0 (normal left inverted right) 0mm x 0mm 1024x768 60.0* 800x600 60.3 640x480 59.9 TMDS-1 connected (normal left inverted right) 1024x768 60.0 800x600 60.3 640x480 59.9 TV disconnected (normal left inverted right) I'll attach both Xorg.log files, I'll happily to provide any other information.
Created attachment 9643 [details] Xorg.0.log with EDID (BIOS emulation)
Created attachment 9644 [details] Xorg.0.log without EDID data (EFI mode)
Additional data point. After a suspend/resume cycle in EFI mode, the xrandr output changes: fred@minifunky:~$ xrandr Screen 0: minimum 320 x 200, current 1024 x 768, maximum 1024 x 1024 VGA connected 1024x768+0+0 (normal left inverted right) 306mm x 230mm 1024x768 84.9 75.1 70.1 60.0* 832x624 74.6 800x600 98.7 84.9 72.2 75.0 60.3 640x480 99.8 84.6 75.0 72.8 60.0 720x400 70.1 640x350 70.1 TMDS-1 connected (normal left inverted right) 1024x768 60.0 800x600 60.3 640x480 59.9 TV disconnected (normal left inverted right) More modes seem to be detected, but not all the available modes are displayed. And indeed, at the end of xorg.conf I find: (II) intel(0): Output VGA connected (II) intel(0): I2C device "CRTDDC_A:ddc2" registered at address 0xA0. (II) intel(0): I2C device "CRTDDC_A:ddc2" removed. (II) intel(0): EDID vendor "PHL", prod id 30476 (II) intel(0): Using EDID range info for horizontal sync (II) intel(0): Using EDID range info for vertical refresh (II) intel(0): Printing DDC gathered Modelines: (II) intel(0): Modeline "640x350"x0.0 25.18 640 656 752 800 350 387 389 449 -hsync +vsync (31.5 kHz) (II) intel(0): Modeline "800x600"x0.0 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (37.9 kHz) (II) intel(0): Modeline "640x480"x0.0 31.50 640 656 720 840 480 481 484 500 -hsync -vsync (37.5 kHz) (II) intel(0): Modeline "640x480"x0.0 31.50 640 664 704 832 480 489 491 520 -hsync -vsync (37.9 kHz) (II) intel(0): Modeline "640x480"x0.0 25.20 640 656 752 800 480 490 492 525 -hsync -vsync (31.5 kHz) (II) intel(0): Modeline "720x400"x0.0 28.32 720 738 846 900 400 412 414 449 -hsync +vsync (31.5 kHz) (II) intel(0): Modeline "1024x768"x0.0 78.80 1024 1040 1136 1312 768 769 772 800 +hsync +vsync (60.1 kHz) (II) intel(0): Modeline "1024x768"x0.0 75.00 1024 1048 1184 1328 768 771 777 806 -hsync -vsync (56.5 kHz) (II) intel(0): Modeline "1024x768"x0.0 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (48.4 kHz) (II) intel(0): Modeline "832x624"x0.0 57.28 832 864 928 1152 624 625 628 667 -hsync -vsync (49.7 kHz) (II) intel(0): Modeline "800x600"x0.0 49.50 800 816 896 1056 600 601 604 625 +hsync +vsync (46.9 kHz) (II) intel(0): Modeline "800x600"x0.0 50.00 800 856 976 1040 600 637 643 666 +hsync +vsync (48.1 kHz) (II) intel(0): Modeline "640x480"x84.6 35.00 640 664 728 816 480 483 487 507 -hsync +vsync (42.9 kHz) (II) intel(0): Modeline "800x600"x84.9 56.75 800 848 928 1056 600 603 607 633 -hsync +vsync (53.7 kHz) (II) intel(0): Modeline "1024x768"x84.9 94.50 1024 1096 1200 1376 768 771 775 809 -hsync +vsync (68.7 kHz) (II) intel(0): Modeline "1280x1024"x59.9 109.00 1280 1368 1496 1712 1024 1027 1034 1063 -hsync +vsync (63.7 kHz) (II) intel(0): Modeline "640x480"x99.8 42.50 640 672 736 832 480 483 487 512 -hsync +vsync (51.1 kHz) (II) intel(0): Modeline "800x600"x98.7 66.50 800 848 928 1056 600 603 607 638 -hsync +vsync (63.0 kHz) (II) intel(0): Modeline "1280x960"x59.9 101.25 1280 1360 1488 1696 960 963 967 996 -hsync +vsync (59.7 kHz) (II) intel(0): Modeline "1152x864"x74.8 104.00 1152 1224 1344 1536 864 867 871 905 -hsync +vsync (67.7 kHz) (II) intel(0): EDID vendor "PHL", prod id 30476 (II) intel(0): Output TMDS-1 connected (II) intel(0): I2C device "SDVOB DDC Bus:ddc2" registered at address 0xA0. (II) intel(0): I2C device "SDVOB DDC Bus:ddc2" removed. (II) intel(0): Output TV disconnected (II) intel(0): Output VGA connected (II) intel(0): I2C device "CRTDDC_A:ddc2" registered at address 0xA0. (II) intel(0): I2C device "CRTDDC_A:ddc2" removed. (II) intel(0): EDID vendor "PHL", prod id 30476 (II) intel(0): Using hsync ranges from config file (II) intel(0): Using vrefresh ranges from config file (II) intel(0): Printing DDC gathered Modelines: (II) intel(0): Modeline "640x350"x0.0 25.18 640 656 752 800 350 387 389 449 -hsync +vsync (31.5 kHz) (II) intel(0): Modeline "800x600"x0.0 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (37.9 kHz) (II) intel(0): Modeline "640x480"x0.0 31.50 640 656 720 840 480 481 484 500 -hsync -vsync (37.5 kHz) (II) intel(0): Modeline "640x480"x0.0 31.50 640 664 704 832 480 489 491 520 -hsync -vsync (37.9 kHz) (II) intel(0): Modeline "640x480"x0.0 25.20 640 656 752 800 480 490 492 525 -hsync -vsync (31.5 kHz) (II) intel(0): Modeline "720x400"x0.0 28.32 720 738 846 900 400 412 414 449 -hsync +vsync (31.5 kHz) (II) intel(0): Modeline "1024x768"x0.0 78.80 1024 1040 1136 1312 768 769 772 800 +hsync +vsync (60.1 kHz) (II) intel(0): Modeline "1024x768"x0.0 75.00 1024 1048 1184 1328 768 771 777 806 -hsync -vsync (56.5 kHz) (II) intel(0): Modeline "1024x768"x0.0 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (48.4 kHz) (II) intel(0): Modeline "832x624"x0.0 57.28 832 864 928 1152 624 625 628 667 -hsync -vsync (49.7 kHz) (II) intel(0): Modeline "800x600"x0.0 49.50 800 816 896 1056 600 601 604 625 +hsync +vsync (46.9 kHz) (II) intel(0): Modeline "800x600"x0.0 50.00 800 856 976 1040 600 637 643 666 +hsync +vsync (48.1 kHz) (II) intel(0): Modeline "640x480"x84.6 35.00 640 664 728 816 480 483 487 507 -hsync +vsync (42.9 kHz) (II) intel(0): Modeline "800x600"x84.9 56.75 800 848 928 1056 600 603 607 633 -hsync +vsync (53.7 kHz) (II) intel(0): Modeline "1024x768"x84.9 94.50 1024 1096 1200 1376 768 771 775 809 -hsync +vsync (68.7 kHz) (II) intel(0): Modeline "1280x1024"x59.9 109.00 1280 1368 1496 1712 1024 1027 1034 1063 -hsync +vsync (63.7 kHz) (II) intel(0): Modeline "640x480"x99.8 42.50 640 672 736 832 480 483 487 512 -hsync +vsync (51.1 kHz) (II) intel(0): Modeline "800x600"x98.7 66.50 800 848 928 1056 600 603 607 638 -hsync +vsync (63.0 kHz) (II) intel(0): Modeline "1280x960"x59.9 101.25 1280 1360 1488 1696 960 963 967 996 -hsync +vsync (59.7 kHz) (II) intel(0): Modeline "1152x864"x74.8 104.00 1152 1224 1344 1536 864 867 871 905 -hsync +vsync (67.7 kHz) (II) intel(0): EDID vendor "PHL", prod id 30476 (II) intel(0): Output TMDS-1 connected (II) intel(0): I2C device "SDVOB DDC Bus:ddc2" registered at address 0xA0. (II) intel(0): I2C device "SDVOB DDC Bus:ddc2" removed. (II) intel(0): Output TV disconnected And here we see all the modes are gathered !? And if I restart the server at this point: fred@minifunky:~$ xrandr Screen 0: minimum 320 x 200, current 1152 x 864, maximum 1280 x 1280 VGA connected 1152x864+0+0 (normal left inverted right) 306mm x 230mm 1280x1024 59.9 1280x960 59.9 1152x864 74.8* 1024x768 84.9 75.1 70.1 60.0 832x624 74.6 800x600 98.7 84.9 72.2 75.0 60.3 640x480 99.8 84.6 75.0 72.8 60.0 720x400 70.1 640x350 70.1 TMDS-1 connected 1024x768+0+0 (normal left inverted right) 0mm x 0mm 1024x768 60.0* 800x600 60.3 640x480 59.9 TV disconnected (normal left inverted right) I've got all the modes ! Excellent ! There seems to be some ordering issue between the card initialization and the DDC reading. Does this ring a bell? [ Hmmm, I just realized that I get a big 3D performance degradation after suspend/resume... I guess I should open another bug for that ? ]
Hi, sorry for the late response. I'm wonderring if you can re-test this bug using the latest tip? thanks.
feedback timed out. Please reopen if you can reproduce with the latest driver.
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