Summary: | external screen brightness is not restored after wakeup | ||
---|---|---|---|
Product: | [Plasma] Powerdevil | Reporter: | Jos van den Oever <jos> |
Component: | general | Assignee: | Plasma Bugs List <plasma-bugs> |
Status: | CONFIRMED --- | ||
Severity: | normal | CC: | aria, chermnykh2001, gudvinr+kde, gwarser, jeisom, jpetso, kde, kde, matejm98mthw, mtjhrj, natalie_clarius, nate, postix |
Priority: | NOR | Keywords: | regression |
Version: | 6.0.4 | ||
Target Milestone: | --- | ||
Platform: | Other | ||
OS: | Linux | ||
Latest Commit: | Version Fixed In: | ||
Sentry Crash Report: |
Description
Jos van den Oever
2022-04-11 08:53:16 UTC
The monitor is visible like this: ``` $ ddcutil detect Display 1 I2C bus: /dev/i2c-9 EDID synopsis: Mfg id: GSM Model: LG HDR 4K Product code: 30471 Serial number: Binary serial number: [..] Manufacture year: [..] VCP version: 2.1 ``` Same issue here, since powerdevil started depending on ddcutil (Arch Linux), every time my screen turns on after it was off for a while its brightness resets to zero but the value in the battery applet remains the same. (In reply to Matej Mrenica from comment #2) > Same issue here, since powerdevil started depending on ddcutil (Arch Linux), > every time my screen turns on after it was off for a while its brightness > resets to zero but the value in the battery applet remains the same. In my case however, I only use one screen (desktop). I have same issue with AMD GPU and 2 external displays (DP and HDMI). Those displays also happen to be only displays I have since it's desktop. However, for some reason brightness only gets reset to 0 only sometimes and it's not fully reproducible. Operating System: Arch Linux KDE Plasma Version: 5.27.7 KDE Frameworks Version: 5.108.0 Qt Version: 5.15.10 Kernel Version: 6.1.46-1-lts (64-bit) Graphics Platform: X11 Graphics Processor: AMD Radeon RX Vega M GL Graphics *** Bug 486500 has been marked as a duplicate of this bug. *** *** Bug 421492 has been marked as a duplicate of this bug. *** *** Bug 423457 has been marked as a duplicate of this bug. *** I collected various thoughts in this developer-focused issue titled "Dimming Rework": https://invent.kde.org/plasma/powerdevil/-/issues/38 I'm still not sure if specifically dimming-related bugs such as Bug 484129 or Bug 486500 (which was closed as duplicate of this one) are indeed the same thing as what you're seeing here, but I'm confident that the eventual fix will address all of these kinds of bugs at once. |