[plasmashell] [Bug 395306] AMD GPUs changed screen wakeup behavior, kde assumes old behavior
https://bugs.kde.org/show_bug.cgi?id=395306 Mariusz Mazur changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #2 from Mariusz Mazur --- There's a bug in the amdgpu displayport link training code that causes monitors to disconnect when trying to wake them up. It's not an intentional change on their part. -- You are receiving this mail because: You are watching all bug changes.
[plasmashell] [Bug 395306] New: AMD GPUs changed screen wakeup behavior, kde assumes old behavior
https://bugs.kde.org/show_bug.cgi?id=395306 Bug ID: 395306 Summary: AMD GPUs changed screen wakeup behavior, kde assumes old behavior Product: plasmashell Version: 5.12.4 Platform: Other OS: Linux Status: UNCONFIRMED Severity: normal Priority: NOR Component: Multi-screen support Assignee: aleix...@kde.org Reporter: mariusz.g.ma...@gmail.com CC: plasma-b...@kde.org Target Milestone: 1.0 Full explanation of the issue here: https://bugs.freedesktop.org/show_bug.cgi?id=106529 Short version: when using recent amd gpus with recent kernels, the behavior when waking up monitors is to (I suppose) mark them as disconnected until they fully wake up. This is a serious problem for multi-monitor setups, since if the primary monitor wakes up more slowly then any of the secondaries, then plasma will for a few hundred ms switch the primary desktop to one of the secondary monitors, then switch back when the actual primary monitor wakes up. This looks like crap and tends to misbehave regularly (windows change their position, plasmoids occasionally get misplaced). Since the kernel bug report got ignored for the past month, I must assume that's just how amdgpu driver will behave going forward. Which means the only place that can mitigate the issue is the DE. Can KDE mitigate the issue (by, dunno, adding 500ms of delay before switching primary displays, or something)? -- You are receiving this mail because: You are watching all bug changes.
[kdeplasma-addons] [Bug 381173] Wrong countdown speed in timer plasmoid's window.
https://bugs.kde.org/show_bug.cgi?id=381173 --- Comment #15 from Mariusz Mazur <mariusz.g.ma...@gmail.com> --- My last comment contains a proposal to work around the issue pointed out by the reviewer. And I end with: "(…) I'm waiting to know how you'd like to proceed on this patch and the other one.". -- You are receiving this mail because: You are watching all bug changes.
[kdeplasma-addons] [Bug 381173] Wrong countdown speed in timer plasmoid's window.
https://bugs.kde.org/show_bug.cgi?id=381173 --- Comment #13 from Mariusz Mazur <mariusz.g.ma...@gmail.com> --- Upstream reviewer went silent two weeks ago without making a decision (https://phabricator.kde.org/D12536), so anybody interested in having this applet working can patch it themselves (no rebuild needed), though out of the box it'll remain broken for the foreseeable future. -- You are receiving this mail because: You are watching all bug changes.
[kdeplasma-addons] [Bug 381173] Wrong countdown speed in timer plasmoid's window.
https://bugs.kde.org/show_bug.cgi?id=381173 --- Comment #9 from Mariusz Mazur <mariusz.g.ma...@gmail.com> --- Ok, found a spare hour to figure this out (courtesy of car mechanic having scheduling problems). All patches submitted, including the one that fixes this issue (D12536). -- You are receiving this mail because: You are watching all bug changes.
[kdeplasma-addons] [Bug 381173] Wrong countdown speed in timer plasmoid's window.
https://bugs.kde.org/show_bug.cgi?id=381173 --- Comment #7 from Mariusz Mazur <mariusz.g.ma...@gmail.com> --- Fixes for this bug (and probably 391634) can be found here: https://github.com/mmazur/kdeplasma-addons/tree/timerfixes Anybody willing to get them merged has my blessing. I'll probably try to do it eventually, but likely not anytime soon, since that phabricator thing does not look overly inviting to someone trying to quickly drop a few lines of patches. -- You are receiving this mail because: You are watching all bug changes.
[kdeplasma-addons] [Bug 381173] Wrong countdown speed in timer plasmoid's window.
https://bugs.kde.org/show_bug.cgi?id=381173
--- Comment #6 from Mariusz Mazur <mariusz.g.ma...@gmail.com> ---
Ok, so I've rewritten the timer logic and now the plasmoid is (much more)
precise independently of issues with Qt. And fixed a few other bugs while I was
at it.
So first order of business is getting that code merged. Dealing with the Qt
bug, well, isn't really my priority, considering that (a) I don't want to spend
the time on learning how to build qt things and (b) if it's not just the qt
timer itself, but it interacting with something else in the plasmoid, then it
could take a while to pinpoint a test case. Especially for someone who has no
idea how to write plasmoids.
If anybody in here has a qt dev env and the know-how to use it to do a quick
test, then the offending code I'd start with would look something like this:
Timer {
id: t;
interval: 1000;
onTriggered: {
var ts = new Date().getTime();
console.log(ts);
}
repeat: true;
running: true;
}
What should happen is a log output roughly every second. What instead happened
in my debugging of the plasmoid was two log outputs every second, a few
milliseconds apart.
Which nicely explains why the plasmoid on my ubuntu 17.10 worked fine, and then
got the double boost when I upgraded to 18.04, all the while the code of the
plasmoid itself has not changed one bit. Only possible conclusion: the problem
must be in the underlying libraries.
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[kdeplasma-addons] [Bug 381173] Wrong countdown speed in timer plasmoid's window.
https://bugs.kde.org/show_bug.cgi?id=381173 --- Comment #4 from Mariusz Mazur <mariusz.g.ma...@gmail.com> --- QtQuick's Timer became unreliable and is notifying the plasmoid that a second has passed twice each time it passes. I'll rewrite the handling to make sure that's no longer the issue. (And while I'm at it, I'll fix the precision, cause the timer plasmoid really isn't precise, which I wasn't ware of before.) -- You are receiving this mail because: You are watching all bug changes.
[kdeplasma-addons] [Bug 381173] Wrong countdown speed in timer plasmoid's window.
https://bugs.kde.org/show_bug.cgi?id=381173 Mariusz Mazur <mariusz.g.ma...@gmail.com> changed: What|Removed |Added CC||mariusz.g.ma...@gmail.com --- Comment #3 from Mariusz Mazur <mariusz.g.ma...@gmail.com> --- Two days left to official ubuntu 18.04 release and this bug is present in kde. -- You are receiving this mail because: You are watching all bug changes.
