Bug 217448
| Summary: | console driver not properly using alternate character set | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | rich turner <rturner> |
| Component: | kernel | Assignee: | Kernel Maintainer List <kernel-maint> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | Brian Brock <bbrock> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 6 | CC: | jonstanley, wtogami |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | fedora 8 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2008-01-08 17:18:25 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 427887 | ||
(This is a mass-update to all current FC6 kernel bugs in NEW state) Hello, I'm reviewing this bug list as part of the kernel bug triage project, an attempt to isolate current bugs in the Fedora kernel. http://fedoraproject.org/wiki/KernelBugTriage I am CC'ing myself to this bug, however this version of Fedora is no longer maintained. Please attempt to reproduce this bug with a current version of Fedora (presently Fedora 8). If the bug no longer exists, please close the bug or I'll do so in a few days if there is no further information lodged. Thanks for using Fedora! This issue has been resolved in Fedora 8. |
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1) Gecko/20061010 Firefox/2.0 Description of problem: On FedoraCore 6, the console driver is not properly interpreting or using the alternate character set mode, which causes all terminfo (Ncurses) applications which draw boxes to display improperly. This problem does not occur on previous versions of FedoraCore or RHEL. The problem also does not occur on FedoraCore 6 when using an xterm or native VT100 terminal. Version-Release number of selected component (if applicable): kernel-2.6.18-1.2798.fc6 How reproducible: Always Steps to Reproduce: 1. Boot system to init level 3 (no Xwindows) 2. Make sure $TERM is set to "linux" 3. # echo -e "\033[11m\332\304\304\304\277\033[10m" Actual Results: just a block displays on the screen. actually, it is multiple blocks that are drawn upon each other. Expected Results: cant show it to you here but it should have displayed the alternate character set character for "upper-left corner", followed by 3 horizontal lines, followed by "upper-right corner". Additional info: The following escape sequence is output by terminfo when TERM=linux and I turn on the alternate character set, display a upper-left corner, three vertical lines and an upper-right corner, then turn off the alternate character set mode: # echo -e "\033[11m\332\304\304\304\277\033[10m" ("\033"=ESCAPE character, "["=left_bracket, "\"=backslash) In this example: "\033[11m" turns on alternate character set "\332\304\304\304\277" draws UR corner, three vertical lines, UL corner "\033[10m" turns off alternate character set The command "tput smacs" also turns on alternate character set by sending the escape sequence provided by terminfo to the screen, and "tput rmacs" will turn the mode off. Using "tput smacs >/tmp/out" and "od -c /tmp/out" verifies that the correct escape sequences are being sent to the display. The same escape sequences sent to the console on any previous version of FedoraCore or RHEL display the box characters properly, but on FedoraCore 6, the smacs/rmacs sequence is apparently ignored and the box characters therefore display garbage on the console.