Results 1 to 2 of 2

Thread: Possible EGL bud with Snapshot 20160511

  1. #1

    Default Possible EGL bud with Snapshot 20160511

    After I dd my zypper dup today, an odd thing heppened after login to the Plasma5 desktop.


    • I can see my panel, but no other widgets
    • The background is the SDDM splash screen
    • I cannot change the background


    After poking around, I found that if I disable the compositor, my normal background and widgets appear. I was running OpenGL 3.1 and changed it to 2.0. After a reboot, the issue persisted. I changed to GLX from EGL, and the roblem disappears, whether or not I use OpenGL 2 or 3.1.

    Code:
    Output of lspci
    
    00:00.0 Host bridge: Intel Corporation Broadwell-U Host Bridge -OPI (rev 09)
    00:02.0 VGA compatible controller: Intel Corporation HD Graphics 5500 (rev 09)
    00:03.0 Audio device: Intel Corporation Broadwell-U Audio Controller (rev 09)
    00:04.0 Signal processing controller: Intel Corporation Broadwell-U Processor Thermal Subsystem (rev 09)
    00:14.0 USB controller: Intel Corporation Wildcat Point-LP USB xHCI Controller (rev 03)
    00:16.0 Communication controller: Intel Corporation Wildcat Point-LP MEI Controller #1 (rev 03)
    00:1b.0 Audio device: Intel Corporation Wildcat Point-LP High Definition Audio Controller (rev 03)
    00:1c.0 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #3 (rev e3)
    00:1d.0 USB controller: Intel Corporation Wildcat Point-LP USB EHCI Controller (rev 03)
    00:1f.0 ISA bridge: Intel Corporation Wildcat Point-LP LPC Controller (rev 03)
    00:1f.2 SATA controller: Intel Corporation Wildcat Point-LP SATA Controller [AHCI Mode] (rev 03)
    00:1f.3 SMBus: Intel Corporation Wildcat Point-LP SMBus Controller (rev 03)
    00:1f.6 Signal processing controller: Intel Corporation Wildcat Point-LP Thermal Management Controller (rev 03)
    01:00.0 Network controller: Intel Corporation Wireless 7265 (rev 59)



    Anyway, I have a work around. Is there more information I would need to open a bug report?

  2. #2

    Default Re: Possible EGL bud with Snapshot 20160511

    Quote Originally Posted by Thiudans View Post
    Anyway, I have a work around. Is there more information I would need to open a bug report?
    Using EGL as kwin's compositing backend is (still) not recommended at this point AFAIK.
    Not all drivers even support it satisfactorily yet I think.

    So switching to GLX is actually not a "workaround", but what you should do, and actually GLX is the default.

    Though, it seems Wayland will require EGL...

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •