With recent Nightly, fcitx-chewing candidate window becomes black. Steps to reproduce: 1. Install both fcitx and fcitx-chewing 2. Pick a text box 3. Hit 5j/ (Corresponds to ㄓㄨㄥ in Chinese) Result: The candidate window has a black background, making it hard to read (see screenshot below) I've tested multiple Nightly versions, and looks like it's a regression: 2018-01-13-10-02-55 good 2018-01-15-10-00-56 good 2018-01-16-10-01-14 good 2018-01-16-22-01-10 good 2018-01-17-10-01-29 bad 2018-01-17-22-03-27 bad
Screenshot for versions <= 2018-01-16-22-01-10: the candidate window has normal background color
Hello Martin Stránský, After testing with many changesets on mozilla-central, I find my issue related to one of your previous changes. Could you have a look? bad d88cb52f392d 2018-01-15 09:08 -0800 Ralph Giles - Bug 1430188: av1: Mark AOM_QM matricies const. r=kinetik. bad 8dee5d879ef1 2018-01-12 08:41 +0100 Martin Stransky - Bug 1420818 - For rendering to titlebar make CSD window decorations mode default, enable WM decorations on Elementary OS, r=jhorak good fe6f236e1fb5 2018-01-16 14:28 -0500 Kartikaya Gupta - Bug 1430797 - Allow webrender on eWindowType_child, so that it is used on OS X. r=nical good 195e88aab631 2018-01-09 16:48 +0100 Julien Wajsberg - Bug 1429094 - Define the environment variable HGRCPATH to ignore any .hgrc that may exist r=gps I've done more tests on 8dee5d879ef1: * MOZ_GTK_TITLEBAR_DECORATION=none ./mach run => good (blue background + white characters like my second screenshot) * MOZ_GTK_TITLEBAR_DECORATION=client ./mach run => broken (black background + black characters like my first screenshot) * MOZ_GTK_TITLEBAR_DECORATION=system ./mach run => good Looking at 8dee5d879ef1, I think it's not so correct. The default value of sCSDSupportLevel shouldn't be touched. In other words, it should remain CSD_SUPPORT_NONE. My environment: LXQt ($XDG_CURRENT_DESKTOP=LXQt) + xfwm4
I'll look at it. My guess is that you don't have compositing WM.
Assignee: nobody → stransky
Status: UNCONFIRMED → NEW
Ever confirmed: true
Summary: Fcitx candidate window is black (nightly 2018-01-17-10-01-29 regression) → [LXQt + xfwm4] Fcitx candidate window is black (nightly 2018-01-17-10-01-29 regression)
We should fix that also for Firefox 59 as it's affected by this.
> My guess is that you don't have compositing WM. Thanks for the hint. Indeed compositing was not enabled. After enabling it (xfwm4-tweaks-settings -> Compositor -> Enable display compositing) and re-login, nothing has changed. fcitx-chewing candidate window is still broken if MOZ_GTK_TITLEBAR_DECORATION is `client` or unspecified.
Comment on attachment 8945441 [details] Bug 1432385 - Use window manager borders on LXQt, https://reviewboard.mozilla.org/r/215618/#review221950
Attachment #8945441 - Flags: review?(jhorak) → review+
Pushed by firstname.lastname@example.org: https://hg.mozilla.org/integration/autoland/rev/c6b717a7f871 Use window manager borders on LXQt, r=jhorak
Per comment 4, please request uplift to beta when you get a chance.
Comment on attachment 8945441 [details] Bug 1432385 - Use window manager borders on LXQt, Approval Request Comment [Feature/Bug causing the regression]: none [User impact if declined]: LXQt won't have working CSD/titlebar rendering. [Is this code covered by automated tests?]: no [Has the fix been verified in Nightly?]: yes [Needs manual test from QE? If yes, steps to reproduce]: no [List of other uplifts needed for the feature/fix]: no [Is the change risky?]: no [Why is the change risky/not risky?]: The fixed feature is off by default. [String changes made/needed]: none
Attachment #8945441 - Flags: approval-mozilla-beta?
Comment on attachment 8945441 [details] Bug 1432385 - Use window manager borders on LXQt, Recent regression in 59, seems safe, Beta59+
Attachment #8945441 - Flags: approval-mozilla-beta? → approval-mozilla-beta+
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