[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
emacs-29 fd5593c7f25: * etc/PROBLEMS: Mention bug#65432 and its remedy.
From: |
Po Lu |
Subject: |
emacs-29 fd5593c7f25: * etc/PROBLEMS: Mention bug#65432 and its remedy. |
Date: |
Sat, 2 Sep 2023 21:25:20 -0400 (EDT) |
branch: emacs-29
commit fd5593c7f254e2c8893feaf6b10715d375b10013
Author: Po Lu <luangruo@yahoo.com>
Commit: Po Lu <luangruo@yahoo.com>
* etc/PROBLEMS: Mention bug#65432 and its remedy.
---
etc/PROBLEMS | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/etc/PROBLEMS b/etc/PROBLEMS
index 6585d5b479d..f398244f3bb 100644
--- a/etc/PROBLEMS
+++ b/etc/PROBLEMS
@@ -1624,6 +1624,18 @@ to normal, do
(set-scroll-bar-mode 'left)
+*** Redisplay with scaled images is slow when built with Cairo.
+
+Cairo expends a noticeable amount of time displaying large images with
+a transform applied. These images most frequently appear within Eww
+buffers or Image Mode buffers after executing the image scaling
+commands `i +' or `i -', and their presence incurs a performance
+penalty of hundereds of milliseconds to seconds upon redisplay. The
+remedy is to build without Cairo after verifying the XRender extension
+is present on your X server and its headers are present on your
+system, whereupon Emacs will use that extension to efficiently perform
+image transforms within the X server.
+
*** Error messages about undefined colors on X.
The messages might say something like this:
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- emacs-29 fd5593c7f25: * etc/PROBLEMS: Mention bug#65432 and its remedy.,
Po Lu <=