https://bugs.kde.org/show_bug.cgi?id=484910
Bug ID: 484910
Summary: DP DaisyChain Second Monitor detected but not possible
to enable
Classification: Plasma
Product: KScreen
Version: 6.0.2
Platform: Manjaro
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: common
Assignee: kscreen-bugs-n...@kde.org
Reporter: codew...@web.de
Target Milestone: ---
SUMMARY
STEPS TO REPRODUCE
1. Connect 2 External Displays to Laptop via DP Daisy Chain
2. Check settings to see that one is disabled
3. Enable on the settings page and press apply
OBSERVED RESULT
Screen doesn't turn on and seems to revert back to the original state where the
screen is disabled.
EXPECTED RESULT
Second Screen turns on.
---
*Note:* I've also tried to enable the screen via `kscreen-doctor
output.DP-12.enable`
with the following output:
```
kscreen-doctor output.DP-12.enable
Enabling output 3
kscreen.doctor: setop exec returned KScreen::Config(
KScreen::Output(1, "eDP-2", connected enabled priority 2, pos:
QPoint(2560,263), res: QSize(2560, 1600), modeId: "0", scale: 1.75, clone: no,
rotation: KScreen::Output::None, followPreferredMode: false)
KScreen::Output(2, "DP-10", connected enabled priority 1, pos: QPoint(0,0),
res: QSize(3840, 2160), modeId: "0", scale: 1.5, clone: no, rotation:
KScreen::Output::None, followPreferredMode: false)
KScreen::Output(3, "DP-12", connected enabled priority 3, pos: QPoint(6400,0),
res: QSize(3840, 2160), modeId: "0", scale: 1.25, clone: no, rotation:
KScreen::Output::None, followPreferredMode: false) )
```
SOFTWARE/OS VERSIONS
Windows: 11
Linux/KDE Plasma: 6.7.10-2-MANJARO
KDE Plasma Version: 6.0.2
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
ADDITIONAL INFORMATION
Output of `kscreen-doctor -o`
```
Output: 1 eDP-2
enabled
connected
priority 2
Panel
Modes: 0:2560x1600@120*! 1:2560x1600@96 2:2560x1600@72
3:2560x1600@60 4:2560x1600@60 5:2560x1600@50 6:2560x1600@48 7:1920x1200@120
8:1920x1080@120 9:1600x1200@120 10:1680x1050@120 11:1280x1024@120
12:1440x900@120 13:1280x800@120 14:1280x720@120 15:1024x768@120
16:800x600@120 17:640x480@120 18:1600x1200@60 19:1280x1024@60
20:1024x768@60 21:2560x1600@60 22:1920x1200@60 23:1280x800@60
24:2560x1440@60 25:1920x1080@60 26:1600x900@60 27:1368x768@60
28:1280x720@60
Geometry: 2560,263 1463x915
Scale: 1.75
Rotation: 1
Overscan: 0
Vrr: incapable
RgbRange: unknown
HDR: incapable
Wide Color Gamut: incapable
ICC profile: none
Output: 2 DP-10
enabled
connected
priority 1
DisplayPort
Modes: 0:3840x2160@60*! 1:3840x2160@60 2:3840x2160@60
3:3840x2160@50 4:3840x2160@30 5:3840x2160@30 6:3840x2160@30 7:3840x2160@25
8:3840x2160@24 9:3840x2160@24 10:2560x1440@60 11:1920x1080@60
12:1920x1080@60 13:1920x1080@60 14:1920x1080@50 15:1920x1080@30
16:1920x1080@30 17:1920x1080@25 18:1920x1080@24 19:1920x1080@24
20:1600x1200@60 21:1680x1050@60 22:1600x900@60 23:1280x1024@75
24:1280x1024@60 25:1280x800@60 26:1152x864@75 27:1280x720@60 28:1280x720@60
29:1280x720@60 30:1280x720@50 31:1024x768@75 32:1024x768@60 33:1440x480@60
34:1440x480@60 35:832x624@75 36:800x600@75 37:800x600@60 38:720x576@50
39:720x480@60 40:720x480@60 41:720x480@60 42:720x480@60 43:640x480@75
44:640x480@60 45:640x480@60 46:640x480@60 47:720x400@70 48:1600x1200@60
49:1280x1024@60 50:1024x768@60 51:2560x1600@60 52:1920x1200@60
53:3840x2160@60 54:3200x1800@60 55:2880x1620@60 56:2560x1440@60
57:1920x1080@60 58:1600x900@60 59:1368x768@60 60:1280x720@60
Geometry: 0,0 2560x1440
Scale: 1.5
Rotation: 1
Overscan: 0
Vrr: incapable
RgbRange: unknown
HDR: disabled
Wide Color Gamut: incapable
ICC profile: none
Output: 3 DP-12
disabled
connected
priority 0
DisplayPort
Modes: 0:3840x2160@60*! 1:3840x2160@60 2:3840x2160@60
3:3840x2160@50 4:3840x2160@30 5:3840x2160@30 6:3840x2160@30 7:3840x2160@25
8:3840x2160@24 9:3840x2160@24 10:2560x1440@60 11:1920x1080@60
12:1920x1080@60 13:1920x1080@60 14:1920x1080@50 15:1920x1080@30
16:1920x1080@30 17:1920x1080@25 18:1920x1080@24 19:1920x1080@24
20:1600x1200@60 21:1680x1050@60 22:1600x900@60 23:1280x1024@75
24:1280x1024@60 25:1280x800@60 26:1152x864@75 27:1280x720@60 28:1280x720@60
29:1280x720@60 30:1280x720@50 31:1024x768@75 32:1024x768@60 33:1440x480@60
34:1440x480@60 35:832x624@75 36:800x600@75 37:800x600@60 38:720x576@50
39:720x480@60 40:720x480@60 41:720x480@60 42:720x480@60 43:640x480@75
44:640x480@60 45:640x480@60 46:640x480@60 47:720x400@70 48:1600x1200@60
49:1280x1024@60 50:1024x768@60 51:2560x1600@60 52:1920x1200@60
53:3840x2160@60 54:3200x1800@60 55:2880x1620@60 56:2560x1440@60
57:1920x1080@60 58:1600x900@60 59:1368x768@60 60:1280x720@60
Geometry: 6400,0 3072x1728
Scale: 1.25
Rotation: 1
Overscan: 0
Vrr: incapable
RgbRange: unknown
HDR: disabled
Wide Color Gamut: incapable
ICC profile: none
```
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