random pixels displayed for a certain character on tty
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Triaged
|
Medium
|
Stefan Bader |
Bug Description
This seems to be regression in kernel 2.6.27-13. The issue also exists in 2.6.27-14. (both from intrepid-proposed)
The issue does not exist in kernels 2.6.27-7 and 2.6.27-11 (from intrepid-updates or security), when booting these old kernels in my otherwise unchanged system.
(I have not yet had time to test other kernels. I guess -12 might be interesting to find out where the problem has been really introduced and -18 might be interesting whether the issue has been solved in the meantime. Please advise, which kernel should be tested, if any)
When using a tty (Ctrl-Alt-F1 ... Ctrl-Alt-F6) the character "Latin small letter o with diaresis" unicode U+00F6 or UTF-8 0xc3b6 is displayed as random pixels.
The pixel pattern seems to be different after each boot and it's always different on each tty (tty1 ... tty6). However it does not seem to change on the same tty as long as the machine is not rebooted.
I use a Finnish keyboard (see attached console-setup file) and it also supports the non-ASCII characters
- "Latin small letter a with diaresis" Unicode U+00E4 equals UTF-8 0xc3a4 and
- "Latin small letter a with ring above" Unicode U+00E5 equals UTF-8 0xc3a5
The latter 2 characters (as well as the ASCII characters) do appear always correctly.
Without a Finnish keyboard the problem can be repeated by "cat sample.txt" (attached) (if your terminal is in utf8 mode)
ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 8.10
NonfreeKernelMo
Package: linux-image-
ProcCmdLine: root=UUID=
ProcEnviron:
PATH=/
LANG=fi_FI.UTF-8
SHELL=/bin/bash
ProcVersionSign
SourcePackage: linux
Changed in linux (Ubuntu): | |
importance: | Undecided → Medium |
status: | New → Triaged |
tags: | removed: regression-proposed |
Stefan, can you please take a look at this possible regression from bug 324921? Thanks!