Bug 138000
| Summary: | when switching from an X console to a non-X console, something is interpreting the cursor visibility state of the switched-to console as applying to all other consoles if the visibility state of the switched-to console is hidden, but not if the state i... | ||
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| Product: | [Fedora] Fedora | Reporter: | Daniel Reed <djr> |
| Component: | kernel | Assignee: | Dave Jones <davej> |
| Status: | CLOSED RAWHIDE | QA Contact: | Brian Brock <bbrock> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 3 | CC: | tomasz.szymanski, wtogami |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2005-10-06 04:06:00 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: | |||
The original summary for this bug was longer than 255 characters, and so it was truncated when Bugzilla was upgraded. The original summary was: when switching from an X console to a non-X console, something is interpreting the cursor visibility state of the switched-to console as applying to all other consoles if the visibility state of the switched-to console is hidden, but not if the state is underscore or block |
Version-Release number of selected component (if applicable): kernel-2.6.9-1.649 How reproducible: Every time Steps to Reproduce: Compile this C code as curs_set, -lncurses: #include <ncurses.h> int main(int argc, char **args) { initscr(); curs_set(atoi(args[1])); while (1) sleep(100); return(0); } Run ./curs_set 0 in tty4 Note that the cursor disappears. Switch to X on tty7 Switch to tty5, note that the cursor is still blinking. Switch to tty4, note that the cursor is correctly not blinking. Switch to tty5 again and not it is still correctly blinking. Switch to X on tty7 Switch directly to tty4. The cursor is correctly not blinking. Switch to tty5. Note that the cursor is incorrectly also not blinking. It appears that, when switching from an X console to a non-X console, something is interpreting the cursor visibility state of the switched-to console as applying to all other consoles if the visibility state of the switched-to console is hidden, but not if the state is underscore (./curs_set 1) or block (./curs_set 2). Moving tty4 from curs_set 0 back to the default (by hitting ^C while curs_set is running, flipping to another pty in screen on that terminal, etc.) is enough to restore all other terminals' cursors (it "breaks the curse" so to speak). Running ./curs_set 1 on any other terminal is also enough to break the curse (without affecting tty4's hidden state).