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Thread: The ability to adjust gamma is lost after upgrade to 15.2

  1. #1

    Question The ability to adjust gamma is lost after upgrade to 15.2

    Hello everyone,

    I met a small problem in Leap 15.2, I wonder if it is a bug. As the title said, the ability to adjust gamma is lost after upgrade to Leap 15.2 .
    The systemsettings in KDE does not work, informing me "Your hardware or driver not support gamma correction". I also tried "xgamma" command, and it said Xlib: extension "XFree86-VidModeExtension" missing on display ":0.
    But everything works fine on Leap 15.1. And some games with gamma correction function still act perfectly on 15.2. When I run them in window mode, them do successfully change the gamma value of all screen, including my wallpaper. I don't know they used which API to do this, but it suggested my hardware and driver works normally.

    This is my hardware information:
    Operating System: openSUSE Leap 15.2
    KDE Plasma Version: 5.17.5
    KDE Frameworks Version: 5.66.0
    Qt Version: 5.12.6
    Kernel Version: 5.3.18-lp152.3-default
    OS Type: 64-bit
    Processors: 8 × AMD Ryzen 5 2400G with Radeon Vega Graphics
    Memory: 17.3 GiB

    Thank you in advance.

  2. #2
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    Default Re: The ability to adjust gamma is lost after upgrade to 15.2

    I'm not really a graphics problem person. But this does sound like the kind of problem that should be reported as a bug.

    You can use this link

    openSUSE:Submitting bug reports
    openSUSE Leap 15.1; KDE Plasma 5;
    testing Leap 15.2Alpha

  3. #3
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    Default Re: The ability to adjust gamma is lost after upgrade to 15.2

    Hi
    Have you tried xrandr instead?

    Code:
    xrandr --current |grep connected |grep -v disconnected
    
    HDMI-2 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 521mm x 293mm
    HDMI-3 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 521mm x 293mm
    
    xrandr --current --output HDMI-3 --gamma 0.5:0.5:0.5
    
    xrandr --current --output HDMI-3 --gamma 1.0:1.0:1.0
    Cheers Malcolm °¿° SUSE Knowledge Partner (Linux Counter #276890)
    SUSE SLE, openSUSE Leap/Tumbleweed (x86_64) | GNOME DE
    If you find this post helpful and are logged into the web interface,
    please show your appreciation and click on the star below... Thanks!

  4. #4

    Thumbs up Re: The ability to adjust gamma is lost after upgrade to 15.2

    Quote Originally Posted by malcolmlewis View Post
    Hi
    Have you tried xrandr instead?

    Code:
    xrandr --current |grep connected |grep -v disconnected
    
    HDMI-2 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 521mm x 293mm
    HDMI-3 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 521mm x 293mm
    
    xrandr --current --output HDMI-3 --gamma 0.5:0.5:0.5
    
    xrandr --current --output HDMI-3 --gamma 1.0:1.0:1.0
    Thank you, It works.
    So this problem is a bug? Or just a config problem?

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    Default Re: The ability to adjust gamma is lost after upgrade to 15.2

    Quote Originally Posted by ImCopas View Post
    Thank you, It works.
    So this problem is a bug? Or just a config problem?
    Hi
    I would think a bug report since you can manually adjust.
    Cheers Malcolm °¿° SUSE Knowledge Partner (Linux Counter #276890)
    SUSE SLE, openSUSE Leap/Tumbleweed (x86_64) | GNOME DE
    If you find this post helpful and are logged into the web interface,
    please show your appreciation and click on the star below... Thanks!

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    Default Re: The ability to adjust gamma is lost after upgrade to 15.2

    Quote Originally Posted by malcolmlewis View Post
    I would think a bug report since you can manually adjust.
    If an openSUSE Bug Report then, it'll possibly be pushed into “It's an upstream issue”.

    Possibly better to submit a KDE Bug Report and then, open an openSUSE Bug Report against Leap 15.2 to track the KDE Bug Report …

  7. #7

    Default Re: The ability to adjust gamma is lost after upgrade to 15.2

    Quote Originally Posted by dcurtisfra View Post
    If an openSUSE Bug Report then, it'll possibly be pushed into “It's an upstream issue”.

    Possibly better to submit a KDE Bug Report and then, open an openSUSE Bug Report against Leap 15.2 to track the KDE Bug Report …

    I also tried "xgamma" command, and it said Xlib: extension "XFree86-VidModeExtension" missing on display ":0. So this thing maybe a bug of Xorg ?

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    Default Re: The ability to adjust gamma is lost after upgrade to 15.2

    Quote Originally Posted by ImCopas View Post
    I also tried "xgamma" command, and it said Xlib: extension "XFree86-VidModeExtension" missing on display ":0. So this thing maybe a bug of Xorg ?
    Hi
    It could be, xgamma works for me in Tumbleweed (GNOME DE), however since I have two screens xrandr works better to select displays....
    Cheers Malcolm °¿° SUSE Knowledge Partner (Linux Counter #276890)
    SUSE SLE, openSUSE Leap/Tumbleweed (x86_64) | GNOME DE
    If you find this post helpful and are logged into the web interface,
    please show your appreciation and click on the star below... Thanks!

  9. #9

    Default Re: The ability to adjust gamma is lost after upgrade to 15.2

    Quote Originally Posted by malcolmlewis View Post
    Hi
    It could be, xgamma works for me in Tumbleweed (GNOME DE), however since I have two screens xrandr works better to select displays....
    I've reported this bug to bugzilla, and thank you, your reply do help a lot.

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