Description of problem: With vblank_mode=0, Intel's GPU is faster than AMD's one. How reproducible: Always. Actual results: AMD's discrete GPU is slower than Intel's GPU. Expected results: AMD's discrete GPU is faster than Intel's GPU. Additional info: Not using vblank_mode=0 keeps glxgears at about ~60 FPS. Laptop: HP Pavilion g6. AMD's GPU: Radeon HD 7670M. OS: 64-bit Linux (Fedora 29 KDE Spin).
I added this bug in Firefox, because I get lag, after force-enabling hardware acceleration and using AMD's GPU. I don't get lag with Inte's GPU with or without vblank_mode=0.
I found that only the main GUI's slow with AMD's GPU and matches performance's much higher. With Intel's GPU, main GUI's faster than matches.
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Fedora 29 changed to end-of-life (EOL) status on 2019-11-26. Fedora 29 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.