[Ubuntu-x-swat] [Bug 1765911] Re: Major performance regression from Ubuntu 17.10 with i915

UPDATE: I installed kernel 4.16.7 from http://kernel.ubuntu.com/~kernel- ppa/mainline/ and things get much better. Not as good as it was on 17.10 but largely usable. Some regression in the i915 driver must have occurred in 4.15 and now it's catching up again apparently. -- You received this bug

[Ubuntu-x-swat] [Bug 1767321] [NEW] Xorg freeze

Public bug reported: In Ubuntu 18.04, display freezes for ~1-5 seconds at seemingly random intervals. When it resumes, gnome shell's dock flickers as if the problem was caused by it. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: xorg 1:7.7+19ubuntu7 ProcVersionSignature: Ubuntu

[Ubuntu-x-swat] [Bug 1765913] [NEW] Hybrid graphics don't work after resume

Public bug reported: When my laptop resumes from suspend, the secondary GPU (Radeon R7 M265) does not work. Prior to suspend I can use it. After suspend, trying DRI_PRIME=1 glxinfo | grep OpenGL simply fails (see attached file). ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: xorg

[Ubuntu-x-swat] [Bug 1765911] [NEW] Major performance regression from Ubuntu 17.10 with i915

Public bug reported: Desktop performance on my laptop (Intel HD 520, driver: i915) used to be generally good on previous Ubuntu releases but on 18.04, there is a VERY noticeable regression. Moving windows around in GNOME is choppy and tearing. It gets dramatic after the laptop resumes from