X-Git-Url: https://iankelling.org/git/?a=blobdiff_plain;f=README.md;h=780a9adb2c65699d57173c7c931ef0d3ea1c612a;hb=5f6cab7491cf38e458bd5a01fb6ca54940db01e1;hp=1f36f9bdd1f2721b65f3dcf18e8200f56357b558;hpb=728674aa231585db49c8e06c05d97807320588ac;p=evhz

diff --git a/README.md b/README.md
index 1f36f9b..780a9ad 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,6 @@
-evhz
-====
+# evhz
 
-Display the current mouse refresh rate under linux with evdev.
+Display the current mouse refresh rate under linux with evdev
 
 For information about polling rate, see https://wiki.archlinux.org/index.php/Mouse_Polling_Rate
 
@@ -12,7 +11,14 @@ The program is just evhz.c. Compile and run:
 
 Nonverbose mode = -n
 
+There exists a kernel bug for USB ports which use the uhci_hcd driver,
+where a 1000 hz mouse will only read at 500hz, causing jittering:
+https://bugzilla.kernel.org/show_bug.cgi?id=60586. A workaround is to
+use USB ports that use the ehci-pci driver.
+
 Maintainer: Ian Kelling <ian@iankelling.org>
-Bugs, patches, requests, feedback is welcome.
 
-Last tested 7/2014 on Fedora 20. Still working great. 
\ No newline at end of file
+Bugs, patches, requests, feedback are welcome.
+
+Last tested 7/2016 on Debian testing. Still working great after several
+years.