[Desktop-packages] [Bug 1809552] Re: Ubuntu sees duplicate display for each graphics card on Macbook Pro
** Changed in: xorg-server (Ubuntu) Status: Expired => New -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1809552 Title: Ubuntu sees duplicate display for each graphics card on Macbook Pro Status in xorg-server package in Ubuntu: New Bug description: After booting Ubuntu in BIOS mode on my machine for years, I just switched over to EFI boot. The reason for which I switched is that, on this machine, Ubuntu cannot detect the integrated GPU under BIOS boot. Ubuntu now recognizes both integrated and discrete GPU on my machine, but it also seems to think I have two monitors. Expected Behavior: Ubuntu properly recognizes that both graphics cards are in fact controlling the same display Actual Behavior: Ubuntu thinks I have two displays (each being controlled by a separate card?). If I navigate to the "Devices > Displays" section of the settings app, then Ubuntu lists two "Built in Displays," and offers options to "Join Displays," mirror them, etc. I have created a question on AskUbuntu (https://askubuntu.com/questions/1103696/ubuntu-duplicates-display- for-each-graphics-card-fresh-install) detailing this issue; it presents much of the same information in this bug report, along with several images. I have also discovered a similar thread from three years ago (https://askubuntu.com/questions/582574/my-macbook-has-two-built-in- displays) suggesting that I am not the only Macbook user to suffer from this issue. The user in said thread worked around this issue by powering off his iGPU. I would like to set up graphics switching in the future, so this is not an option for me. In any case, I have tested his "solution" and it DOES NOT work on my machine (I also don't have a /sys/kernel/debug/vgaswitcheroo folder like he apparently does) SYSTEM INFORMATION OS Version: Ubuntu (64-bit) 18.04.1 Kernel: 4.15.0-43-generic GRAPHICS CARD INFORMATION == $ lshw -c video *-display description: VGA compatible controller product: GK107M [GeForce GT 650M Mac Edition] vendor: NVIDIA Corporation physical id: 0 bus info: pci@:01:00.0 version: a1 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress vga_controller bus_master cap_list rom configuration: driver=nouveau latency=0 resources: irq:45 memory:c000-c0ff memory:9000-9fff memory:a000-a1ff ioport:2000(size=128) memory:c100-c107 *-display description: VGA compatible controller product: 3rd Gen Core processor Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@:00:02.0 version: 09 width: 64 bits clock: 33MHz capabilities: msi pm vga_controller bus_master cap_list configuration: driver=i915 latency=0 resources: irq:47 memory:c140-c17f memory:b000-bfff ioport:3000(size=64) MORE GRAPHICS CARD INFORMATION == $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) 01:00.0 VGA compatible controller: NVIDIA Corporation GK107M [GeForce GT 650M Mac Edition] (rev a1) DISPLAY CONFIGURATION INFO (1) == NOTE: In this diagnostic, I have chosen the "Single Display" option via the System Settings app. Only one of the two "built-in displays" is actually usable, selecting the other just gives me a black screen until my changes are auto-reverted $ xrandr - q Screen 0: minimum 320 x 200, current 1440 x 900, maximum 16384 x 16384 LVDS-1 connected primary 1440x900+0+0 (normal left inverted right x axis y axis) 331mm x 207mm 1440x900 59.90*+ 1152x864 59.97 1024x768 59.95 800x600 59.96 640x480 59.94 720x400 59.97 640x400 59.96 640x350 59.84 DP-1 disconnected (normal left inverted right x axis y axis) DP-2 disconnected (normal left inverted right x axis y axis) DP-3 disconnected (normal left inverted right x axis y axis) LVDS-1-2 connected (normal left inverted right x axis y axis) 1440x900 59.90 + 59.89 1400x900 59.9659.88 1440x810 60.0059.97 1368x768 59.8859.85 1360x768 59.8059.96 1280x800 59.9959.9759.8159.91 1152x864 60.00 1280x720 60.0059.9959.8659.74 1024x768 60.0460.00 960x720 60.00 928x696 60.05 896x672 60.01 1024x576 59.9559.9659.9059.82 960x600 59.9360.00 960x540 59.9659.9959.6359.82 800x600 60.0060.3256.25 840x525 60.01
[Desktop-packages] [Bug 1809552] Re: Ubuntu sees duplicate display for each graphics card on Macbook Pro
[Expired for xorg-server (Ubuntu) because there has been no activity for 60 days.] ** Changed in: xorg-server (Ubuntu) Status: Incomplete => Expired -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1809552 Title: Ubuntu sees duplicate display for each graphics card on Macbook Pro Status in xorg-server package in Ubuntu: Expired Bug description: After booting Ubuntu in BIOS mode on my machine for years, I just switched over to EFI boot. The reason for which I switched is that, on this machine, Ubuntu cannot detect the integrated GPU under BIOS boot. Ubuntu now recognizes both integrated and discrete GPU on my machine, but it also seems to think I have two monitors. Expected Behavior: Ubuntu properly recognizes that both graphics cards are in fact controlling the same display Actual Behavior: Ubuntu thinks I have two displays (each being controlled by a separate card?). If I navigate to the "Devices > Displays" section of the settings app, then Ubuntu lists two "Built in Displays," and offers options to "Join Displays," mirror them, etc. I have created a question on AskUbuntu (https://askubuntu.com/questions/1103696/ubuntu-duplicates-display- for-each-graphics-card-fresh-install) detailing this issue; it presents much of the same information in this bug report, along with several images. I have also discovered a similar thread from three years ago (https://askubuntu.com/questions/582574/my-macbook-has-two-built-in- displays) suggesting that I am not the only Macbook user to suffer from this issue. The user in said thread worked around this issue by powering off his iGPU. I would like to set up graphics switching in the future, so this is not an option for me. In any case, I have tested his "solution" and it DOES NOT work on my machine (I also don't have a /sys/kernel/debug/vgaswitcheroo folder like he apparently does) SYSTEM INFORMATION OS Version: Ubuntu (64-bit) 18.04.1 Kernel: 4.15.0-43-generic GRAPHICS CARD INFORMATION == $ lshw -c video *-display description: VGA compatible controller product: GK107M [GeForce GT 650M Mac Edition] vendor: NVIDIA Corporation physical id: 0 bus info: pci@:01:00.0 version: a1 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress vga_controller bus_master cap_list rom configuration: driver=nouveau latency=0 resources: irq:45 memory:c000-c0ff memory:9000-9fff memory:a000-a1ff ioport:2000(size=128) memory:c100-c107 *-display description: VGA compatible controller product: 3rd Gen Core processor Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@:00:02.0 version: 09 width: 64 bits clock: 33MHz capabilities: msi pm vga_controller bus_master cap_list configuration: driver=i915 latency=0 resources: irq:47 memory:c140-c17f memory:b000-bfff ioport:3000(size=64) MORE GRAPHICS CARD INFORMATION == $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) 01:00.0 VGA compatible controller: NVIDIA Corporation GK107M [GeForce GT 650M Mac Edition] (rev a1) DISPLAY CONFIGURATION INFO (1) == NOTE: In this diagnostic, I have chosen the "Single Display" option via the System Settings app. Only one of the two "built-in displays" is actually usable, selecting the other just gives me a black screen until my changes are auto-reverted $ xrandr - q Screen 0: minimum 320 x 200, current 1440 x 900, maximum 16384 x 16384 LVDS-1 connected primary 1440x900+0+0 (normal left inverted right x axis y axis) 331mm x 207mm 1440x900 59.90*+ 1152x864 59.97 1024x768 59.95 800x600 59.96 640x480 59.94 720x400 59.97 640x400 59.96 640x350 59.84 DP-1 disconnected (normal left inverted right x axis y axis) DP-2 disconnected (normal left inverted right x axis y axis) DP-3 disconnected (normal left inverted right x axis y axis) LVDS-1-2 connected (normal left inverted right x axis y axis) 1440x900 59.90 + 59.89 1400x900 59.9659.88 1440x810 60.0059.97 1368x768 59.8859.85 1360x768 59.8059.96 1280x800 59.9959.9759.8159.91 1152x864 60.00 1280x720 60.0059.9959.8659.74 1024x768 60.0460.00 960x720 60.00 928x696 60.05 896x672 60.01 1024x576 59.9559.9659.9059.82 960x600 59.9360.00 960x540 59.9659
[Desktop-packages] [Bug 1809552] Re: Ubuntu sees duplicate display for each graphics card on Macbook Pro
Does the problem also occur in Wayland sessions? ** Changed in: xorg-server (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1809552 Title: Ubuntu sees duplicate display for each graphics card on Macbook Pro Status in xorg-server package in Ubuntu: Incomplete Bug description: After booting Ubuntu in BIOS mode on my machine for years, I just switched over to EFI boot. The reason for which I switched is that, on this machine, Ubuntu cannot detect the integrated GPU under BIOS boot. Ubuntu now recognizes both integrated and discrete GPU on my machine, but it also seems to think I have two monitors. Expected Behavior: Ubuntu properly recognizes that both graphics cards are in fact controlling the same display Actual Behavior: Ubuntu thinks I have two displays (each being controlled by a separate card?). If I navigate to the "Devices > Displays" section of the settings app, then Ubuntu lists two "Built in Displays," and offers options to "Join Displays," mirror them, etc. I have created a question on AskUbuntu (https://askubuntu.com/questions/1103696/ubuntu-duplicates-display- for-each-graphics-card-fresh-install) detailing this issue; it presents much of the same information in this bug report, along with several images. I have also discovered a similar thread from three years ago (https://askubuntu.com/questions/582574/my-macbook-has-two-built-in- displays) suggesting that I am not the only Macbook user to suffer from this issue. The user in said thread worked around this issue by powering off his iGPU. I would like to set up graphics switching in the future, so this is not an option for me. In any case, I have tested his "solution" and it DOES NOT work on my machine (I also don't have a /sys/kernel/debug/vgaswitcheroo folder like he apparently does) SYSTEM INFORMATION OS Version: Ubuntu (64-bit) 18.04.1 Kernel: 4.15.0-43-generic GRAPHICS CARD INFORMATION == $ lshw -c video *-display description: VGA compatible controller product: GK107M [GeForce GT 650M Mac Edition] vendor: NVIDIA Corporation physical id: 0 bus info: pci@:01:00.0 version: a1 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress vga_controller bus_master cap_list rom configuration: driver=nouveau latency=0 resources: irq:45 memory:c000-c0ff memory:9000-9fff memory:a000-a1ff ioport:2000(size=128) memory:c100-c107 *-display description: VGA compatible controller product: 3rd Gen Core processor Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@:00:02.0 version: 09 width: 64 bits clock: 33MHz capabilities: msi pm vga_controller bus_master cap_list configuration: driver=i915 latency=0 resources: irq:47 memory:c140-c17f memory:b000-bfff ioport:3000(size=64) MORE GRAPHICS CARD INFORMATION == $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) 01:00.0 VGA compatible controller: NVIDIA Corporation GK107M [GeForce GT 650M Mac Edition] (rev a1) DISPLAY CONFIGURATION INFO (1) == NOTE: In this diagnostic, I have chosen the "Single Display" option via the System Settings app. Only one of the two "built-in displays" is actually usable, selecting the other just gives me a black screen until my changes are auto-reverted $ xrandr - q Screen 0: minimum 320 x 200, current 1440 x 900, maximum 16384 x 16384 LVDS-1 connected primary 1440x900+0+0 (normal left inverted right x axis y axis) 331mm x 207mm 1440x900 59.90*+ 1152x864 59.97 1024x768 59.95 800x600 59.96 640x480 59.94 720x400 59.97 640x400 59.96 640x350 59.84 DP-1 disconnected (normal left inverted right x axis y axis) DP-2 disconnected (normal left inverted right x axis y axis) DP-3 disconnected (normal left inverted right x axis y axis) LVDS-1-2 connected (normal left inverted right x axis y axis) 1440x900 59.90 + 59.89 1400x900 59.9659.88 1440x810 60.0059.97 1368x768 59.8859.85 1360x768 59.8059.96 1280x800 59.9959.9759.8159.91 1152x864 60.00 1280x720 60.0059.9959.8659.74 1024x768 60.0460.00 960x720 60.00 928x696 60.05 896x672 60.01 1024x576 59.9559.9659.9059.82 960x600 59.9360.00 960x540 59.9659.9959.6359.82 800x600
[Desktop-packages] [Bug 1809552] Re: Ubuntu sees duplicate display for each graphics card on Macbook Pro
Your XorgLog seems to show that you do have two different GPU drivers both connected to the same physical screen (or two identical screens): [15.105] (II) NOUVEAU(0): EDID (in hex): [15.105] (II) NOUVEAU(0): 00000610a39c [15.105] (II) NOUVEAU(0): 00130103802115780af595a3554f9c26 [15.105] (II) NOUVEAU(0): 0f50540001010101010101010101 [15.105] (II) NOUVEAU(0): 010101010101ab22a0a050841a303020 [15.105] (II) NOUVEAU(0): 36004bcf1018000100061030 [15.105] (II) NOUVEAU(0): 0a2000fe004c [15.105] (II) NOUVEAU(0): 503135345750342d544c413100fe [15.105] (II) NOUVEAU(0): 00436f6c6f72204c43440a202020 15.464] (II) modeset(G0): EDID (in hex): [15.464] (II) modeset(G0): 00000610a39c [15.464] (II) modeset(G0): 00130103802115780af595a3554f9c26 [15.464] (II) modeset(G0): 0f50540001010101010101010101 [15.464] (II) modeset(G0): 010101010101ab22a0a050841a303020 [15.464] (II) modeset(G0): 36004bcf1018000100061030 [15.464] (II) modeset(G0): 0a2000fe004c [15.464] (II) modeset(G0): 503135345750342d544c413100fe [15.464] (II) modeset(G0): 00436f6c6f72204c43440a202020 Technically this is correct if the hardware has both GPUs wired to the screen. The system can't know in advance which GPU you would prefer to use unless one has been explicitly disabled already. So I guess it is correct to show the same LCD connection to each GPU. Certainly in software we should be able to detect this and better inform the user that it's only one screen. Ideally that would be via unique serial numbers but Apple has failed to provide a serial number: [15.464] (II) modeset(G0): Manufacturer: APP Model: 9ca3 Serial#: 0 As a next option we could guess that most laptops will only ever have one LVDS-connected display, but that's not strictly true for multi- screen laptops. They're rare, but do exist. So I guess the best option we have is to add quirks, which means hardcoding rules for known weird hardware like this. It's possible, but probably not worth doing. So I think the right answer here is to say "Won't fix". The software is indeed correctly showing that you have two different GPUs connected to /a/ screen. ** Changed in: xorg-server (Ubuntu) Importance: Undecided => Low -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1809552 Title: Ubuntu sees duplicate display for each graphics card on Macbook Pro Status in xorg-server package in Ubuntu: Incomplete Bug description: After booting Ubuntu in BIOS mode on my machine for years, I just switched over to EFI boot. The reason for which I switched is that, on this machine, Ubuntu cannot detect the integrated GPU under BIOS boot. Ubuntu now recognizes both integrated and discrete GPU on my machine, but it also seems to think I have two monitors. Expected Behavior: Ubuntu properly recognizes that both graphics cards are in fact controlling the same display Actual Behavior: Ubuntu thinks I have two displays (each being controlled by a separate card?). If I navigate to the "Devices > Displays" section of the settings app, then Ubuntu lists two "Built in Displays," and offers options to "Join Displays," mirror them, etc. I have created a question on AskUbuntu (https://askubuntu.com/questions/1103696/ubuntu-duplicates-display- for-each-graphics-card-fresh-install) detailing this issue; it presents much of the same information in this bug report, along with several images. I have also discovered a similar thread from three years ago (https://askubuntu.com/questions/582574/my-macbook-has-two-built-in- displays) suggesting that I am not the only Macbook user to suffer from this issue. The user in said thread worked around this issue by powering off his iGPU. I would like to set up graphics switching in the future, so this is not an option for me. In any case, I have tested his "solution" and it DOES NOT work on my machine (I also don't have a /sys/kernel/debug/vgaswitcheroo folder like he apparently does) SYSTEM INFORMATION OS Version: Ubuntu (64-bit) 18.04.1 Kernel: 4.15.0-43-generic GRAPHICS CARD INFORMATION == $ lshw -c video *-display description: VGA compatible controller product: GK107M [GeForce GT 650M Mac Edition] vendor: NVIDIA Corporation physical id: 0 bus info: pci@:01:00.0 version: a1 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress vga_controller bus_master cap_list rom configuration: driver=nouveau latency=0 resources: irq:45 memory:c000-c0ff memory:9000-9fff memory:a000-a1ff ioport:2000(size=128) memory:c100-c107 *-display
[Desktop-packages] [Bug 1809552] Re: Ubuntu sees duplicate display for each graphics card on Macbook Pro
** Package changed: xorg (Ubuntu) => xorg-server (Ubuntu) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1809552 Title: Ubuntu sees duplicate display for each graphics card on Macbook Pro Status in xorg-server package in Ubuntu: New Bug description: After booting Ubuntu in BIOS mode on my machine for years, I just switched over to EFI boot. The reason for which I switched is that, on this machine, Ubuntu cannot detect the integrated GPU under BIOS boot. Ubuntu now recognizes both integrated and discrete GPU on my machine, but it also seems to think I have two monitors. Expected Behavior: Ubuntu properly recognizes that both graphics cards are in fact controlling the same display Actual Behavior: Ubuntu thinks I have two displays (each being controlled by a separate card?). If I navigate to the "Devices > Displays" section of the settings app, then Ubuntu lists two "Built in Displays," and offers options to "Join Displays," mirror them, etc. I have created a question on AskUbuntu (https://askubuntu.com/questions/1103696/ubuntu-duplicates-display- for-each-graphics-card-fresh-install) detailing this issue; it presents much of the same information in this bug report, along with several images. I have also discovered a similar thread from three years ago (https://askubuntu.com/questions/582574/my-macbook-has-two-built-in- displays) suggesting that I am not the only Macbook user to suffer from this issue. The user in said thread worked around this issue by powering off his iGPU. I would like to set up graphics switching in the future, so this is not an option for me. In any case, I have tested his "solution" and it DOES NOT work on my machine (I also don't have a /sys/kernel/debug/vgaswitcheroo folder like he apparently does) SYSTEM INFORMATION OS Version: Ubuntu (64-bit) 18.04.1 Kernel: 4.15.0-43-generic GRAPHICS CARD INFORMATION == $ lshw -c video *-display description: VGA compatible controller product: GK107M [GeForce GT 650M Mac Edition] vendor: NVIDIA Corporation physical id: 0 bus info: pci@:01:00.0 version: a1 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress vga_controller bus_master cap_list rom configuration: driver=nouveau latency=0 resources: irq:45 memory:c000-c0ff memory:9000-9fff memory:a000-a1ff ioport:2000(size=128) memory:c100-c107 *-display description: VGA compatible controller product: 3rd Gen Core processor Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@:00:02.0 version: 09 width: 64 bits clock: 33MHz capabilities: msi pm vga_controller bus_master cap_list configuration: driver=i915 latency=0 resources: irq:47 memory:c140-c17f memory:b000-bfff ioport:3000(size=64) MORE GRAPHICS CARD INFORMATION == $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) 01:00.0 VGA compatible controller: NVIDIA Corporation GK107M [GeForce GT 650M Mac Edition] (rev a1) DISPLAY CONFIGURATION INFO (1) == NOTE: In this diagnostic, I have chosen the "Single Display" option via the System Settings app. Only one of the two "built-in displays" is actually usable, selecting the other just gives me a black screen until my changes are auto-reverted $ xrandr - q Screen 0: minimum 320 x 200, current 1440 x 900, maximum 16384 x 16384 LVDS-1 connected primary 1440x900+0+0 (normal left inverted right x axis y axis) 331mm x 207mm 1440x900 59.90*+ 1152x864 59.97 1024x768 59.95 800x600 59.96 640x480 59.94 720x400 59.97 640x400 59.96 640x350 59.84 DP-1 disconnected (normal left inverted right x axis y axis) DP-2 disconnected (normal left inverted right x axis y axis) DP-3 disconnected (normal left inverted right x axis y axis) LVDS-1-2 connected (normal left inverted right x axis y axis) 1440x900 59.90 + 59.89 1400x900 59.9659.88 1440x810 60.0059.97 1368x768 59.8859.85 1360x768 59.8059.96 1280x800 59.9959.9759.8159.91 1152x864 60.00 1280x720 60.0059.9959.8659.74 1024x768 60.0460.00 960x720 60.00 928x696 60.05 896x672 60.01 1024x576 59.9559.9659.9059.82 960x600 59.9360.00 960x540 59.9659.9959.6359.82 800x600 60.0060.3256.25 840x525 60.0159.88
[Desktop-packages] [Bug 1809552] Re: Ubuntu sees duplicate display for each graphics card on Macbook Pro
I should specify, the specific model of Macbook Pro which I am using is the mid-2012 15" version (version 10,1) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1809552 Title: Ubuntu sees duplicate display for each graphics card on Macbook Pro Status in xorg package in Ubuntu: New Bug description: After booting Ubuntu in BIOS mode on my machine for years, I just switched over to EFI boot. The reason for which I switched is that, on this machine, Ubuntu cannot detect the integrated GPU under BIOS boot. Ubuntu now recognizes both integrated and discrete GPU on my machine, but it also seems to think I have two monitors. Expected Behavior: Ubuntu properly recognizes that both graphics cards are in fact controlling the same display Actual Behavior: Ubuntu thinks I have two displays (each being controlled by a separate card?). If I navigate to the "Devices > Displays" section of the settings app, then Ubuntu lists two "Built in Displays," and offers options to "Join Displays," mirror them, etc. I have created a question on AskUbuntu (https://askubuntu.com/questions/1103696/ubuntu-duplicates-display- for-each-graphics-card-fresh-install) detailing this issue; it presents much of the same information in this bug report, along with several images. I have also discovered a similar thread from three years ago (https://askubuntu.com/questions/582574/my-macbook-has-two-built-in- displays) suggesting that I am not the only Macbook user to suffer from this issue. The user in said thread worked around this issue by powering off his iGPU. I would like to set up graphics switching in the future, so this is not an option for me. In any case, I have tested his "solution" and it DOES NOT work on my machine (I also don't have a /sys/kernel/debug/vgaswitcheroo folder like he apparently does) SYSTEM INFORMATION OS Version: Ubuntu (64-bit) 18.04.1 Kernel: 4.15.0-43-generic GRAPHICS CARD INFORMATION == $ lshw -c video *-display description: VGA compatible controller product: GK107M [GeForce GT 650M Mac Edition] vendor: NVIDIA Corporation physical id: 0 bus info: pci@:01:00.0 version: a1 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress vga_controller bus_master cap_list rom configuration: driver=nouveau latency=0 resources: irq:45 memory:c000-c0ff memory:9000-9fff memory:a000-a1ff ioport:2000(size=128) memory:c100-c107 *-display description: VGA compatible controller product: 3rd Gen Core processor Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@:00:02.0 version: 09 width: 64 bits clock: 33MHz capabilities: msi pm vga_controller bus_master cap_list configuration: driver=i915 latency=0 resources: irq:47 memory:c140-c17f memory:b000-bfff ioport:3000(size=64) MORE GRAPHICS CARD INFORMATION == $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) 01:00.0 VGA compatible controller: NVIDIA Corporation GK107M [GeForce GT 650M Mac Edition] (rev a1) DISPLAY CONFIGURATION INFO (1) == NOTE: In this diagnostic, I have chosen the "Single Display" option via the System Settings app. Only one of the two "built-in displays" is actually usable, selecting the other just gives me a black screen until my changes are auto-reverted $ xrandr - q Screen 0: minimum 320 x 200, current 1440 x 900, maximum 16384 x 16384 LVDS-1 connected primary 1440x900+0+0 (normal left inverted right x axis y axis) 331mm x 207mm 1440x900 59.90*+ 1152x864 59.97 1024x768 59.95 800x600 59.96 640x480 59.94 720x400 59.97 640x400 59.96 640x350 59.84 DP-1 disconnected (normal left inverted right x axis y axis) DP-2 disconnected (normal left inverted right x axis y axis) DP-3 disconnected (normal left inverted right x axis y axis) LVDS-1-2 connected (normal left inverted right x axis y axis) 1440x900 59.90 + 59.89 1400x900 59.9659.88 1440x810 60.0059.97 1368x768 59.8859.85 1360x768 59.8059.96 1280x800 59.9959.9759.8159.91 1152x864 60.00 1280x720 60.0059.9959.8659.74 1024x768 60.0460.00 960x720 60.00 928x696 60.05 896x672 60.01 1024x576 59.9559.9659.9059.82 960x600 59.9360.00 960x540 59.9659.9959.6359.82 800x600 60.0060.3256.