SUMMARY Black screen at startup if an external monitor is connected. My configuration is: 1) internal display: off 2) external display: on, primary After the login screen (sddm) both displays turn black and the system hangs. I can't switch to text console with ctrl+alt+f2...f7 No problem if I connect the external display after plasmashell starts. SOFTWARE/OS VERSIONS Operating System: Manjaro Linux KDE Plasma Version: 5.27.1 KDE Frameworks Version: 5.103.0 Qt Version: 5.15.8 Kernel Version: 6.2.0-1-MANJARO (64-bit) Graphics Platform: X11 Processors: 8 × 11th Gen Intel® Core™ i5-1135G7 @ 2.40GHz Memory: 15.4 GiB of RAM Graphics Processor: Mesa Intel® Xe Graphics Manufacturer: Dell Inc. Product Name: Inspiron 5502
Does this still happen if you configure the internal display to be on? Can you attach the output of `kscreen-doctor -o` when the system is in a good state, i.e. when you connect the external display after plasma starts and then disable the internal screen?
Output: 67 eDP1 disabled connected priority 0 Panel Modes: 72:1920x1080@60! 1887:1920x1080@60 1888:1920x1080@48 1889:1680x1050@60 1890:1400x1050@60 1891:1600x900@60 1892:1600x900@60 1893:1600x900@60 1894:1280x1024@60 1895:1400x900@60 1896:1400x900@60 1897:1280x960@60 1898:1368x768@60 1899:1368x768@60 1900:1368x768@60 1901:1280x800@60 1902:1280x800@60 1903:1280x720@60 1904:1280x720@60 1905:1280x720@60 1906:1024x768@60 1907:1024x576@60 1908:1024x576@60 1909:1024x576@60 1910:960x540@60 1911:960x540@60 1912:960x540@60 1913:800x600@60 1914:800x600@56 1915:864x486@60 1916:864x486@60 1917:864x486@60 1918:640x480@60 1919:720x405@60 1920:720x405@60 1921:720x405@59 1922:640x360@60 1923:640x360@59 1924:640x360@60 Geometry: 0,0 1920x1080 Scale: 1 Rotation: 1 Overscan: 0 Vrr: incapable RgbRange: unknown Output: 68 DP1 disabled disconnected priority 0 DisplayPort Modes: Geometry: 0,0 0x0 Scale: 1 Rotation: 1 Overscan: 0 Vrr: incapable RgbRange: unknown Output: 69 HDMI1 enabled connected priority 1 HDMI Modes: 1889:1680x1050@60 1894:1280x1024@60 1906:1024x768@60 1913:800x600@60 1914:800x600@56 1918:640x480@60 1948:1920x1080@60! 1949:1920x1080@50 1950:1920x1080@60* 1951:1920x1080@60 1952:1920x1080@50 1953:1920x1080@30 1954:1920x1080@25 1955:1920x1080@24 1956:1920x1080@60 1957:1920x1080@30 1958:1920x1080@24 1959:1280x1024@75 1960:1280x720@60 1961:1280x720@50 1962:1280x720@60 1963:1024x768@75 1964:800x600@75 1965:720x576@50 1966:720x576@50 1967:720x480@60 1968:720x480@60 1969:720x480@60 1970:720x480@60 1971:640x480@75 1972:640x480@73 1973:640x480@67 1974:640x480@60 1975:720x400@70 Geometry: 0,0 1920x1080 Scale: 1 Rotation: 1 Overscan: 0 Vrr: incapable RgbRange: unknown Output: 70 VIRTUAL1 disabled disconnected priority 0 Unknown Modes: Geometry: 0,0 0x0 Scale: 1 Rotation: 1 Overscan: 0 Vrr: incapable RgbRange: unknown
(In reply to Nate Graham from comment #1) > Does this still happen if you configure the internal display to be on? I'm trying. The bug occurs often but not every time, so I need to do more tests.
Another thing I notice is that if I start with the 5.15 kernel, after logging in the internal screen turns off and the system starts on the external one without pause, whereas with the 6.2 kernel the external screen goes black for 2 seconds and then turns on again, unless it remains black because of the bug. The bug in this report did not occur with version 5.26, but the black screen for 2 seconds with the 6.x kernel also happened with 5.26
I would like to add one more detail: after logging in, the Plasma splash screen appears for 2-3 seconds, only then the screen goes black and the PC completely freezes.
(In reply to Guido from comment #3) > (In reply to Nate Graham from comment #1) > > Does this still happen if you configure the internal display to be on? > > I'm trying. The bug occurs often but not every time, so I need to do more > tests. I tried and the bug arises also when the internal dosplay is setted on.
Thanks, now can you attach the output of `kscreen-doctor -o` after the bug has happened? That way I can compare the output between working and broken system states,
(In reply to Nate Graham from comment #7) > Thanks, now can you attach the output of `kscreen-doctor -o` after the bug > has happened? > > That way I can compare the output between working and broken system states, I can't. When the bug appears, the system is freezed. I need to hard reset the laptop
Darn. Thanks. Does it work if you log in to a Wayland session? Or is that broken too?
(In reply to Nate Graham from comment #9) > Darn. Thanks. > > Does it work if you log in to a Wayland session? Or is that broken too? Yes, also in Wayland session.
Thanks.
it seems solved in Plasma 6