Email Gateway (Aug 22 2022 at 14:40): Email Gateway (Aug 22 2022 at 14:40):From: Peter Lammich <lammich@in.tum.de>
Hi all,
I encountered the following behaviour with Ubuntu 16.04LTS:
After wakeup from suspend, jEdit shows no fonts any more, see attached
screenshot. This happened to me a few weeks ago sporadically for the
first time. It seems not to be a regression for the new Isabelle
version, as I get it also with Isabelle2016. By now, the frequency of
this bug has increased, almost on any wakeup, I have to restart all
Isabelle sessions.
Has anyone seen this bug, or has an idea how to work around?
screenshot.png
Email Gateway (Aug 22 2022 at 14:40):From: David Cock <david.cock@inf.ethz.ch>
I can confirm the behaviour, but I have no suggestions. Seems to be a
common symptom among a number of applications - eclipse does almost
exactly the same thing.
David
Email Gateway (Aug 22 2022 at 14:41):From: Makarius <makarius@sketis.net>
We are somehow used to odd problems with Java/AWT/Swing, but Eclipse has
its own rendering via SWT. Are you sure that is the same problem?
Searching on the web I've found tracker items like this:
https://bugs.openjdk.java.net/browse/JDK-8096170
https://github.com/linuxmint/Cinnamon/issues/5607
They seem to be related to Linux graphics driver problems. What is your
graphics hardware and driver?
Makarius
Email Gateway (Aug 22 2022 at 14:41):From: Rafal Kolanski <xs@xaph.net>
I have seen two problems of this kind, both related to Intel integrated
graphics:
https://wiki.archlinux.org/index.php/intel_graphics#SNA_issues
(related to https://bugs.freedesktop.org/show_bug.cgi?id=88584 )
Judging by your screenshot, odds are you are experiencing #2, but I
would recommend switching to UXA regardless.
Sincerely,
Rafal Kolanski
Email Gateway (Aug 22 2022 at 14:41):From: David Cock <david.cock@inf.ethz.ch>
I'm not at all sure that it's actually the same problem (with eclipse) -
just the same symptom. It seems to be the case that the UI components
aren't redrawn after waking up. If you play with the window long enough
(minimise/maximise, alt-tab, ...) it seems to eventually come good.
I've got Intel integrated graphics, with the x.org driver.
David
Email Gateway (Aug 22 2022 at 14:42):From: Peter Lammich <lammich@in.tum.de>
Hi,
I did both, #1 (switching to UXA) and #2 (setting
COGL_ATLAS_DEFAULT_BLIT_MODE=framebuffer in environment), and the first
impression looks good! I did not get the bug on a couple of
suspend/resume cycles. However, I will have to test some more
situations (wakeup with different screens attached as when suspended)
that I sometimes encounter.
Thank you very much for the pointers,
Peter
Last updated: Apr 25 2024 at 20:15 UTC