Unknown display. Dual monitors can only mirror after kernel upgrade

I just upgraded from 4.18.5 to 4.19.11. After reboot both monitors are working, but they are not extended anymore, but mirrored with cursors and everything.

When I go to "Displays", it can only find 1 display, and it is named "unknown display". I am on ubuntu 18.04 using 2 monitors one hdmi one DVI. It's never been an issue before.

lspci|grep -i vga

01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Hawaii PRO [Radeon R9 290/390] (rev 80)

I am using amdgpu device driver.

EDIT 11/03/2019: This also happens with kernel 5.0.1. But 4.18.5 is still working like a charm.

Here is a copy of my /etc/X11/xorg.conf

Section "ServerLayout"

Identifier     "X.org Configured"

Screen      0  "Screen0" 0 0

Screen      1  "Screen1" RightOf "Screen0"

InputDevice    "Mouse0" "CorePointer"

InputDevice    "Keyboard0" "CoreKeyboard"

EndSection



Section "Files"

    ModulePath   "/usr/lib/xorg/modules"

    FontPath     "/usr/share/fonts/X11/misc"

    FontPath     "/usr/share/fonts/X11/cyrillic"

    FontPath     "/usr/share/fonts/X11/100dpi/:unscaled"

    FontPath     "/usr/share/fonts/X11/75dpi/:unscaled"

    FontPath     "/usr/share/fonts/X11/Type1"

    FontPath     "/usr/share/fonts/X11/100dpi"

    FontPath     "/usr/share/fonts/X11/75dpi"

    FontPath     "built-ins"

EndSection



Section "Module"

    Load  "glx"

EndSection



Section "InputDevice"

    Identifier  "Keyboard0"

    Driver      "kbd"

EndSection



Section "InputDevice"

    Identifier  "Mouse0"

    Driver      "mouse"

    Option      "Protocol" "auto"

    Option      "Device" "/dev/input/mice"

    Option      "ZAxisMapping" "4 5 6 7"

EndSection



Section "Monitor"

    Identifier   "Monitor0"

    VendorName   "Monitor Vendor"

    ModelName    "Monitor Model"

EndSection



Section "Monitor"

    Identifier   "Monitor1"

    VendorName   "Monitor Vendor"

    ModelName    "Monitor Model"

EndSection



Section "Device"

        ### Available Driver options are:-

        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",

        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz",

        ### <percent>: "<f>%"

        ### [arg]: arg optional

        #Option     "Accel"                 # [<bool>]

        #Option     "SWcursor"              # [<bool>]

        #Option     "EnablePageFlip"        # [<bool>]

        #Option     "SubPixelOrder"         # [<str>]

        #Option     "ZaphodHeads"           # <str>

        #Option     "AccelMethod"           # <str>

        #Option     "DRI3"                  # [<bool>]

        #Option     "DRI"                   # <i>

        #Option     "ShadowPrimary"         # [<bool>]

        #Option     "TearFree"              # [<bool>]

        #Option     "DeleteUnusedDP12Displays"  # [<bool>]

        #Option     "VariableRefresh"       # [<bool>]

    Identifier  "Card0"

    Driver      "amdgpu"

    BusID       "PCI:1:0:0"

EndSection



Section "Device"

        ### Available Driver options are:-

        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",

        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz",

        ### <percent>: "<f>%"

        ### [arg]: arg optional

        #Option     "Accel"                 # [<bool>]

        #Option     "SWcursor"              # [<bool>]

        #Option     "EnablePageFlip"        # [<bool>]

        #Option     "SubPixelOrder"         # [<str>]

        #Option     "ZaphodHeads"           # <str>

        #Option     "AccelMethod"           # <str>

        #Option     "DRI3"                  # [<bool>]

        #Option     "DRI"                   # <i>

        #Option     "ShadowPrimary"         # [<bool>]

        #Option     "TearFree"              # [<bool>]

        #Option     "DeleteUnusedDP12Displays"  # [<bool>]

        #Option     "VariableRefresh"       # [<bool>]

    Identifier  "Card1"

    Driver      "amdgpu"

    BusID       "PCI:1:0:1"

EndSection



Section "Screen"

    Identifier "Screen0"

    Device     "Card0"

    Monitor    "Monitor0"

    SubSection "Display"

        Viewport   0 0

        Depth     1

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     4

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     8

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     15

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     16

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     24

    EndSubSection

EndSection



Section "Screen"

    Identifier "Screen1"

    Device     "Card1"

    Monitor    "Monitor1"

    SubSection "Display"

        Viewport   0 0

        Depth     1

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     4

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     8

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     15

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     16

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     24

    EndSubSection

EndSection

edited Mar 11 at 18:14

asked Dec 21 '18 at 9:47

Simon Sondrup Kristensen

63110

This problem still exists after almost 3 months. Can anyone help?

– Simon Sondrup Kristensen
Mar 11 at 18:33

add a comment |

I just upgraded from 4.18.5 to 4.19.11. After reboot both monitors are working, but they are not extended anymore, but mirrored with cursors and everything.

When I go to "Displays", it can only find 1 display, and it is named "unknown display". I am on ubuntu 18.04 using 2 monitors one hdmi one DVI. It's never been an issue before.

lspci|grep -i vga

01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Hawaii PRO [Radeon R9 290/390] (rev 80)

I am using amdgpu device driver.

EDIT 11/03/2019: This also happens with kernel 5.0.1. But 4.18.5 is still working like a charm.

Here is a copy of my /etc/X11/xorg.conf

Section "ServerLayout"

Identifier     "X.org Configured"

Screen      0  "Screen0" 0 0

Screen      1  "Screen1" RightOf "Screen0"

InputDevice    "Mouse0" "CorePointer"

InputDevice    "Keyboard0" "CoreKeyboard"

EndSection



Section "Files"

    ModulePath   "/usr/lib/xorg/modules"

    FontPath     "/usr/share/fonts/X11/misc"

    FontPath     "/usr/share/fonts/X11/cyrillic"

    FontPath     "/usr/share/fonts/X11/100dpi/:unscaled"

    FontPath     "/usr/share/fonts/X11/75dpi/:unscaled"

    FontPath     "/usr/share/fonts/X11/Type1"

    FontPath     "/usr/share/fonts/X11/100dpi"

    FontPath     "/usr/share/fonts/X11/75dpi"

    FontPath     "built-ins"

EndSection



Section "Module"

    Load  "glx"

EndSection



Section "InputDevice"

    Identifier  "Keyboard0"

    Driver      "kbd"

EndSection



Section "InputDevice"

    Identifier  "Mouse0"

    Driver      "mouse"

    Option      "Protocol" "auto"

    Option      "Device" "/dev/input/mice"

    Option      "ZAxisMapping" "4 5 6 7"

EndSection



Section "Monitor"

    Identifier   "Monitor0"

    VendorName   "Monitor Vendor"

    ModelName    "Monitor Model"

EndSection



Section "Monitor"

    Identifier   "Monitor1"

    VendorName   "Monitor Vendor"

    ModelName    "Monitor Model"

EndSection



Section "Device"

        ### Available Driver options are:-

        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",

        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz",

        ### <percent>: "<f>%"

        ### [arg]: arg optional

        #Option     "Accel"                 # [<bool>]

        #Option     "SWcursor"              # [<bool>]

        #Option     "EnablePageFlip"        # [<bool>]

        #Option     "SubPixelOrder"         # [<str>]

        #Option     "ZaphodHeads"           # <str>

        #Option     "AccelMethod"           # <str>

        #Option     "DRI3"                  # [<bool>]

        #Option     "DRI"                   # <i>

        #Option     "ShadowPrimary"         # [<bool>]

        #Option     "TearFree"              # [<bool>]

        #Option     "DeleteUnusedDP12Displays"  # [<bool>]

        #Option     "VariableRefresh"       # [<bool>]

    Identifier  "Card0"

    Driver      "amdgpu"

    BusID       "PCI:1:0:0"

EndSection



Section "Device"

        ### Available Driver options are:-

        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",

        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz",

        ### <percent>: "<f>%"

        ### [arg]: arg optional

        #Option     "Accel"                 # [<bool>]

        #Option     "SWcursor"              # [<bool>]

        #Option     "EnablePageFlip"        # [<bool>]

        #Option     "SubPixelOrder"         # [<str>]

        #Option     "ZaphodHeads"           # <str>

        #Option     "AccelMethod"           # <str>

        #Option     "DRI3"                  # [<bool>]

        #Option     "DRI"                   # <i>

        #Option     "ShadowPrimary"         # [<bool>]

        #Option     "TearFree"              # [<bool>]

        #Option     "DeleteUnusedDP12Displays"  # [<bool>]

        #Option     "VariableRefresh"       # [<bool>]

    Identifier  "Card1"

    Driver      "amdgpu"

    BusID       "PCI:1:0:1"

EndSection



Section "Screen"

    Identifier "Screen0"

    Device     "Card0"

    Monitor    "Monitor0"

    SubSection "Display"

        Viewport   0 0

        Depth     1

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     4

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     8

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     15

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     16

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     24

    EndSubSection

EndSection



Section "Screen"

    Identifier "Screen1"

    Device     "Card1"

    Monitor    "Monitor1"

    SubSection "Display"

        Viewport   0 0

        Depth     1

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     4

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     8

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     15

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     16

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     24

    EndSubSection

EndSection

edited Mar 11 at 18:14

asked Dec 21 '18 at 9:47

Simon Sondrup Kristensen

63110

This problem still exists after almost 3 months. Can anyone help?

– Simon Sondrup Kristensen
Mar 11 at 18:33

add a comment |

I just upgraded from 4.18.5 to 4.19.11. After reboot both monitors are working, but they are not extended anymore, but mirrored with cursors and everything.

When I go to "Displays", it can only find 1 display, and it is named "unknown display". I am on ubuntu 18.04 using 2 monitors one hdmi one DVI. It's never been an issue before.

lspci|grep -i vga

01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Hawaii PRO [Radeon R9 290/390] (rev 80)

I am using amdgpu device driver.

EDIT 11/03/2019: This also happens with kernel 5.0.1. But 4.18.5 is still working like a charm.

Here is a copy of my /etc/X11/xorg.conf

Section "ServerLayout"

Identifier     "X.org Configured"

Screen      0  "Screen0" 0 0

Screen      1  "Screen1" RightOf "Screen0"

InputDevice    "Mouse0" "CorePointer"

InputDevice    "Keyboard0" "CoreKeyboard"

EndSection



Section "Files"

    ModulePath   "/usr/lib/xorg/modules"

    FontPath     "/usr/share/fonts/X11/misc"

    FontPath     "/usr/share/fonts/X11/cyrillic"

    FontPath     "/usr/share/fonts/X11/100dpi/:unscaled"

    FontPath     "/usr/share/fonts/X11/75dpi/:unscaled"

    FontPath     "/usr/share/fonts/X11/Type1"

    FontPath     "/usr/share/fonts/X11/100dpi"

    FontPath     "/usr/share/fonts/X11/75dpi"

    FontPath     "built-ins"

EndSection



Section "Module"

    Load  "glx"

EndSection



Section "InputDevice"

    Identifier  "Keyboard0"

    Driver      "kbd"

EndSection



Section "InputDevice"

    Identifier  "Mouse0"

    Driver      "mouse"

    Option      "Protocol" "auto"

    Option      "Device" "/dev/input/mice"

    Option      "ZAxisMapping" "4 5 6 7"

EndSection



Section "Monitor"

    Identifier   "Monitor0"

    VendorName   "Monitor Vendor"

    ModelName    "Monitor Model"

EndSection



Section "Monitor"

    Identifier   "Monitor1"

    VendorName   "Monitor Vendor"

    ModelName    "Monitor Model"

EndSection



Section "Device"

        ### Available Driver options are:-

        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",

        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz",

        ### <percent>: "<f>%"

        ### [arg]: arg optional

        #Option     "Accel"                 # [<bool>]

        #Option     "SWcursor"              # [<bool>]

        #Option     "EnablePageFlip"        # [<bool>]

        #Option     "SubPixelOrder"         # [<str>]

        #Option     "ZaphodHeads"           # <str>

        #Option     "AccelMethod"           # <str>

        #Option     "DRI3"                  # [<bool>]

        #Option     "DRI"                   # <i>

        #Option     "ShadowPrimary"         # [<bool>]

        #Option     "TearFree"              # [<bool>]

        #Option     "DeleteUnusedDP12Displays"  # [<bool>]

        #Option     "VariableRefresh"       # [<bool>]

    Identifier  "Card0"

    Driver      "amdgpu"

    BusID       "PCI:1:0:0"

EndSection



Section "Device"

        ### Available Driver options are:-

        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",

        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz",

        ### <percent>: "<f>%"

        ### [arg]: arg optional

        #Option     "Accel"                 # [<bool>]

        #Option     "SWcursor"              # [<bool>]

        #Option     "EnablePageFlip"        # [<bool>]

        #Option     "SubPixelOrder"         # [<str>]

        #Option     "ZaphodHeads"           # <str>

        #Option     "AccelMethod"           # <str>

        #Option     "DRI3"                  # [<bool>]

        #Option     "DRI"                   # <i>

        #Option     "ShadowPrimary"         # [<bool>]

        #Option     "TearFree"              # [<bool>]

        #Option     "DeleteUnusedDP12Displays"  # [<bool>]

        #Option     "VariableRefresh"       # [<bool>]

    Identifier  "Card1"

    Driver      "amdgpu"

    BusID       "PCI:1:0:1"

EndSection



Section "Screen"

    Identifier "Screen0"

    Device     "Card0"

    Monitor    "Monitor0"

    SubSection "Display"

        Viewport   0 0

        Depth     1

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     4

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     8

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     15

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     16

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     24

    EndSubSection

EndSection



Section "Screen"

    Identifier "Screen1"

    Device     "Card1"

    Monitor    "Monitor1"

    SubSection "Display"

        Viewport   0 0

        Depth     1

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     4

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     8

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     15

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     16

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     24

    EndSubSection

EndSection

edited Mar 11 at 18:14

asked Dec 21 '18 at 9:47

Simon Sondrup Kristensen

63110

I just upgraded from 4.18.5 to 4.19.11. After reboot both monitors are working, but they are not extended anymore, but mirrored with cursors and everything.

When I go to "Displays", it can only find 1 display, and it is named "unknown display". I am on ubuntu 18.04 using 2 monitors one hdmi one DVI. It's never been an issue before.

lspci|grep -i vga

01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Hawaii PRO [Radeon R9 290/390] (rev 80)

I am using amdgpu device driver.

EDIT 11/03/2019: This also happens with kernel 5.0.1. But 4.18.5 is still working like a charm.

Here is a copy of my /etc/X11/xorg.conf

Section "ServerLayout"

Identifier     "X.org Configured"

Screen      0  "Screen0" 0 0

Screen      1  "Screen1" RightOf "Screen0"

InputDevice    "Mouse0" "CorePointer"

InputDevice    "Keyboard0" "CoreKeyboard"

EndSection



Section "Files"

    ModulePath   "/usr/lib/xorg/modules"

    FontPath     "/usr/share/fonts/X11/misc"

    FontPath     "/usr/share/fonts/X11/cyrillic"

    FontPath     "/usr/share/fonts/X11/100dpi/:unscaled"

    FontPath     "/usr/share/fonts/X11/75dpi/:unscaled"

    FontPath     "/usr/share/fonts/X11/Type1"

    FontPath     "/usr/share/fonts/X11/100dpi"

    FontPath     "/usr/share/fonts/X11/75dpi"

    FontPath     "built-ins"

EndSection



Section "Module"

    Load  "glx"

EndSection



Section "InputDevice"

    Identifier  "Keyboard0"

    Driver      "kbd"

EndSection



Section "InputDevice"

    Identifier  "Mouse0"

    Driver      "mouse"

    Option      "Protocol" "auto"

    Option      "Device" "/dev/input/mice"

    Option      "ZAxisMapping" "4 5 6 7"

EndSection



Section "Monitor"

    Identifier   "Monitor0"

    VendorName   "Monitor Vendor"

    ModelName    "Monitor Model"

EndSection



Section "Monitor"

    Identifier   "Monitor1"

    VendorName   "Monitor Vendor"

    ModelName    "Monitor Model"

EndSection



Section "Device"

        ### Available Driver options are:-

        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",

        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz",

        ### <percent>: "<f>%"

        ### [arg]: arg optional

        #Option     "Accel"                 # [<bool>]

        #Option     "SWcursor"              # [<bool>]

        #Option     "EnablePageFlip"        # [<bool>]

        #Option     "SubPixelOrder"         # [<str>]

        #Option     "ZaphodHeads"           # <str>

        #Option     "AccelMethod"           # <str>

        #Option     "DRI3"                  # [<bool>]

        #Option     "DRI"                   # <i>

        #Option     "ShadowPrimary"         # [<bool>]

        #Option     "TearFree"              # [<bool>]

        #Option     "DeleteUnusedDP12Displays"  # [<bool>]

        #Option     "VariableRefresh"       # [<bool>]

    Identifier  "Card0"

    Driver      "amdgpu"

    BusID       "PCI:1:0:0"

EndSection



Section "Device"

        ### Available Driver options are:-

        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",

        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz",

        ### <percent>: "<f>%"

        ### [arg]: arg optional

        #Option     "Accel"                 # [<bool>]

        #Option     "SWcursor"              # [<bool>]

        #Option     "EnablePageFlip"        # [<bool>]

        #Option     "SubPixelOrder"         # [<str>]

        #Option     "ZaphodHeads"           # <str>

        #Option     "AccelMethod"           # <str>

        #Option     "DRI3"                  # [<bool>]

        #Option     "DRI"                   # <i>

        #Option     "ShadowPrimary"         # [<bool>]

        #Option     "TearFree"              # [<bool>]

        #Option     "DeleteUnusedDP12Displays"  # [<bool>]

        #Option     "VariableRefresh"       # [<bool>]

    Identifier  "Card1"

    Driver      "amdgpu"

    BusID       "PCI:1:0:1"

EndSection



Section "Screen"

    Identifier "Screen0"

    Device     "Card0"

    Monitor    "Monitor0"

    SubSection "Display"

        Viewport   0 0

        Depth     1

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     4

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     8

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     15

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     16

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     24

    EndSubSection

EndSection



Section "Screen"

    Identifier "Screen1"

    Device     "Card1"

    Monitor    "Monitor1"

    SubSection "Display"

        Viewport   0 0

        Depth     1

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     4

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     8

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     15

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     16

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     24

    EndSubSection

EndSection

kernel xorg multiple-monitors display dual-monitor

edited Mar 11 at 18:14

asked Dec 21 '18 at 9:47

Simon Sondrup Kristensen

63110

edited Mar 11 at 18:14

asked Dec 21 '18 at 9:47

Simon Sondrup Kristensen

63110

edited Mar 11 at 18:14

asked Dec 21 '18 at 9:47

Simon Sondrup Kristensen

63110

asked Dec 21 '18 at 9:47

Simon Sondrup Kristensen

63110

asked Dec 21 '18 at 9:47

Simon Sondrup Kristensen

63110

This problem still exists after almost 3 months. Can anyone help?

– Simon Sondrup Kristensen
Mar 11 at 18:33

add a comment |

This problem still exists after almost 3 months. Can anyone help?

– Simon Sondrup Kristensen
Mar 11 at 18:33

This problem still exists after almost 3 months. Can anyone help?

– Simon Sondrup Kristensen
Mar 11 at 18:33

add a comment |

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