[Bug 1230942] New: pdf mangled and unreadable
https://bugzilla.suse.com/show_bug.cgi?id=1230942 Bug ID: 1230942 Summary: pdf mangled and unreadable Classification: openSUSE Product: openSUSE Distribution Version: Leap 15.6 Hardware: Other OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Firefox Assignee: factory-mozilla@lists.opensuse.org Reporter: danielm@ecoscentric.com QA Contact: qa-bugs@suse.de Target Milestone: --- Found By: --- Blocker: --- Created attachment 877530 --> https://bugzilla.suse.com/attachment.cgi?id=877530&action=edit screenshot of pdf renderer Since an update several weeks ago the inbuilt pdf renderer produces junk. The screen flickers horribly, horizontal bars appear over the pages and most of the underlying information is not displayed (see screenshots attached - this is very boring and simple set of filed company accounts, but more complex pdfs are similarly mangled). Downloading the same file and then opening with Okular works fine. KDE Plasma desktop, with all security and updates applied to Leap 15.6. -- You are receiving this mail because: You are the assignee for the bug.
https://bugzilla.suse.com/show_bug.cgi?id=1230942 https://bugzilla.suse.com/show_bug.cgi?id=1230942#c1 --- Comment #1 from Daniel Morris <danielm@ecoscentric.com> --- Created attachment 877531 --> https://bugzilla.suse.com/attachment.cgi?id=877531&action=edit screenshot of mangled pdf with the Properties displayed (nothing fancy) -- You are receiving this mail because: You are the assignee for the bug.
https://bugzilla.suse.com/show_bug.cgi?id=1230942 https://bugzilla.suse.com/show_bug.cgi?id=1230942#c2 --- Comment #2 from Daniel Morris <danielm@ecoscentric.com> --- Sorry, I forgot to add, currently 128.2.0 Firefox ESR. Looking at zypper history I think this started with 128.1.0 or 115.13.0. -- You are receiving this mail because: You are the assignee for the bug.
https://bugzilla.suse.com/show_bug.cgi?id=1230942 https://bugzilla.suse.com/show_bug.cgi?id=1230942#c4 --- Comment #4 from Daniel Morris <danielm@ecoscentric.com> --- Yes, but I now think it might be triggered by multi-page scrolling. Your simple sample was fine, but I opened either/both of these and the problem started, and switching back to the sample.pdf tab had that then mangled: https://assets.publishing.service.gov.uk/government/uploads/system/uploads/a... https://www.tlc-direct.co.uk/Technical/DataSheets/Timeguard_1/SMSLFM360N_Ins... I've tried changing the zoom from Automatic to 50% etc. and even those menu overlays get messed up. I suspect this is a fencepost error in the scrolling code, since sometimes (like the TLC instructions) the lines-of-text are interspersed over lines-of-whitespace. I've no idea how to debug/look for Firefox logs to help get closer though. -- You are receiving this mail because: You are the assignee for the bug.
https://bugzilla.suse.com/show_bug.cgi?id=1230942 https://bugzilla.suse.com/show_bug.cgi?id=1230942#c6 Daniel Morris <danielm@ecoscentric.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |WORKSFORME Status|NEW |RESOLVED --- Comment #6 from Daniel Morris <danielm@ecoscentric.com> --- Thanks Martin, it seems to have gone away. Creating a new profile didn't exhibit the fault, so I restarted firefox and reverted to my original profile and again the issue was gone. I then restored my previous session (about 18 tabs) and refreshed each one. At all times the multi-page pdfs were displayed cleanly and I can page back and forth without issues. I then put the PC to sleep and woke, and again the pdf is fine (I tend to cold boot only after kernel/systemd updates, sleeping in-between). I'd also previously tried disabling all extensions before reporting the bug (Vimium, uBlock Origin, Privacy Badger, HTTPS Everywhere & xIFr). My home directory is mounted with plenty of free diskspace, and the system is using less than a third of its 48GiB RAM. Perhaps something in the profile was corrupted during an update and flipping between profiles has straightened it out? I have become lazy/used to zypper working flawlessly and seldom logout for updates, though usually check with zypper -ps I'll mark this as resolved and hope it doesn't return! Thanks for your swift help. -- You are receiving this mail because: You are the assignee for the bug.
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