Description of problem: I'm using Fedora 28 beta, with updates. I've a number of problems under wayland: 1. from time to time (e.g. each minute), mouse pointer freezes for a while (e.g. under 1 second) and then jumps to the new position when moving. 2. Kernel prints the following error repeatedly: kernel: ACPI: \_SB_.PCI0.PEGP.DGFX: failed to evaluate _DSM 3. From time to time, when I press a key (or a key combination), it happens multiple times; e.g. I press Ctrl+T in gnome-terminal, and suddenly 3 new tabs open rather than just one. It doesn't happen under Xorg.
I can reproduce this issue too. It is a clear regression from Fedora 27. See also bug #1565931. (In reply to Hedayat Vatankhah from comment #0) > Description of problem: > I'm using Fedora 28 beta, with updates. I've a number of problems under > wayland: > > 1. from time to time (e.g. each minute), mouse pointer freezes for a while > (e.g. under 1 second) and then jumps to the new position when moving. Same here. > 2. Kernel prints the following error repeatedly: > kernel: ACPI: \_SB_.PCI0.PEGP.DGFX: failed to evaluate _DSM This does not happen on my machine. I guess it is unrelated. > 3. From time to time, when I press a key (or a key combination), it happens > multiple times; e.g. I press Ctrl+T in gnome-terminal, and suddenly 3 new > tabs open rather than just one. I'm seeing this one too.
What kind of laptop is this reproducing on? Does https://copr.fedorainfracloud.org/coprs/jadahl/mutter-hw-cursor-on-demand/build/758884/ improve the situation?
(In reply to Jonas Ådahl from comment #2) > What kind of laptop is this reproducing on? In my case this is a desktop PC with Intel's core i5-650 and a H55 mainboard controller. I'll thy the build on the weekend.
Jonas, your mutter-hw-cursor-on-demand copr does seem to improve the input responsiveness / cursor lag for me on F28. However, in my casual observations, I have seen an increase in a 'flickering' problem. The flickering doesn't start right away - it seems to start after my screen has locked and I unlock it (but not necessarily the first lock/unlock cycle). Note that I have seen this flickering before on F27, but I think this is the first time I've seen it on F28 / Gnome 3.28. Because it's hard to describe the flickering, I made a video. It's kind of large (80MB) though. https://www.techie.net/~talbert/VID_20180610_202148.mp4
The key repeats are tracked in bug #1579859. I think the lags are duplicates of bug #1575281 and bug #1563811.
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I have this bug on fedora 31, i set up ctrl+t as a shortcut to open a terminal, and about 30-50% of the time, it will open up 2 terminals when i use that shortcut. I'm pretty sure it's due related to my ctrl key, i can very reliably trigger this with my left crtl key, but never with my right ctrl key. I know you might think i'm an unintelligent buffoon for making a bug report about my shitty keyboard, but showkey shows very normal output, just 2 key presses, followed by 2 key releases. Also other "shortcuts" like ctrl+alt+down/up arrow never make me switch workspaces twice. So it seems that at some level in the software stack, the gibberish from my keyboard gets neatly cleaned up, so i'm wondering if it would be possible to also fix this for my own user defined shortcuts.
bug #1579859 is probably a better place for this, you can leave this one closed, sorry