[Bug 338959] New: kdm input distorted until switch to textmode has been made ( likely a kernel bug)

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bugzilla_noreply＠novell.com

3 Nov 2007 3 Nov '07

19:53

https://bugzilla.novell.com/show_bug.cgi?id=338959 Summary: kdm input distorted until switch to textmode has been made (likely a kernel bug) Product: openSUSE 10.3 Version: Final Platform: 32bit OS/Version: Linux Status: NEW Severity: Normal Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: jmm@inutil.org QAContact: qa@suse.de Found By: Customer Created an attachment (id=181931) --> (https://bugzilla.novell.com/attachment.cgi?id=181931) dmesg output of the machine OpenSuSE 10.3 has grave login problems after the update to 10.3. When inserting the first letter of the password, the whole kdm input box is filled with the black point, which hides the password. After that no further keyboard input is possible. The mouse continues to work fine, it modifies the focus etc. When I switch to the console with CTRL-ALT-F1 and switch back to X11 with ALT-F7 the keyboard works fully again. (I still have to click on "login" to "cancel" the filled-up password entry box with a failed login. After that the keyboard works perfectly fine. I suspect this is a kernel bug, as the keyboard also doesn't work during the selection of boot kernels (which fortunately selects the standard kernel). This I'm filing this for kernel and not for KDE. The machine uses a straight-forward Logitech USB keyboard. I'm attaching dmesg output. These login problems were not present on OpenSuSE 10.2 Cheers, Moritz -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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bugzilla_noreply＠novell.com

3 Nov 3 Nov

22:35

New subject: [Bug 338959] kdm input distorted until switch to textmode has been made ( likely a kernel bug)

https://bugzilla.novell.com/show_bug.cgi?id=338959#c1 Jiri Kosina changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jkosina@novell.com AssignedTo|kernel-maintainers@forge.provo.novell.com |jkosina@novell.com Status|NEW |ASSIGNED --- Comment #1 from Jiri Kosina 2007-11-03 16:35:54 MST ---

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When inserting the first letter of the password, the whole kdm input box is filled with the black point, which hides the password. After that no further keyboard input is possible. The mouse continues to work fine, it modifies the focus etc. When I switch to the console with CTRL-ALT-F1 and switch back to X11 with ALT-F7 the keyboard works fully again. (I still have to click on "login" to "cancel" the filled-up password entry box with a failed login. After that the keyboard works perfectly fine.

Please, does this also happen on console? I.e. when you have default boot to runlevel 3 (text mode), and try to log into console? If it does work flawlessly, I'd be a bit suspicious with respect to X server.

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I suspect this is a kernel bug, as the keyboard also doesn't work during the selection of boot kernels (which fortunately selects the standard kernel).

This is not related. When the GRUB menu is in action, there is no way kernel could handle the keyboard. It is handled by the machine BIOS. If you want USB keyboard to be working in GRUB menu, please check "USB Legacy Support" option in your BIOS.

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The machine uses a straight-forward Logitech USB keyboard. I'm attaching dmesg output. These login problems were not present on OpenSuSE 10.2

Thanks, there is nothing suspicious in the dmesg output. It would be nice if you could use evtest program to grab what is actually coming from the input device of the keyboard when it gets stuck. In that way we will be able to see clearly if it is a kernel bug or X/KDE bug. Thanks. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

4 Nov 4 Nov

10:44

New subject: [Bug 338959] kdm input distorted until switch to textmode has been made ( likely a kernel bug)

https://bugzilla.novell.com/show_bug.cgi?id=338959#c2 --- Comment #2 from Moritz Mühlenhoff 2007-11-04 03:44:38 MST --- (In reply to comment #1 from Jiri Kosina)

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When inserting the first letter of the password, the whole kdm input box is filled with the black point, which hides the password. After that no further keyboard input is possible. The mouse continues to work fine, it modifies the focus etc. When I switch to the console with CTRL-ALT-F1 and switch back to X11 with ALT-F7 the keyboard works fully again. (I still have to click on "login" to "cancel" the filled-up password entry box with a failed login. After that the keyboard works perfectly fine.

Please, does this also happen on console? I.e. when you have default boot to runlevel 3 (text mode), and try to log into console?

If I boot directly into run level 3, I can login just fine, no doubled key presses or something similar.

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If it does work flawlessly, I'd be a bit suspicious with respect to X server.

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I suspect this is a kernel bug, as the keyboard also doesn't work during the selection of boot kernels (which fortunately selects the standard kernel).

This is not related. When the GRUB menu is in action, there is no way kernel could handle the keyboard. It is handled by the machine BIOS.

If you want USB keyboard to be working in GRUB menu, please check "USB Legacy Support" option in your BIOS.

Indeed, "USB keyboard support" was disabled in the BIOS. With it enabled GRUB works as expected. The KDM behaviour is the same, though.

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The machine uses a straight-forward Logitech USB keyboard. I'm attaching dmesg output. These login problems were not present on OpenSuSE 10.2

Thanks, there is nothing suspicious in the dmesg output. It would be nice if you could use evtest program to grab what is actually coming from the input device of the keyboard when it gets stuck. In that way we will be able to see clearly if it is a kernel bug or X/KDE bug.

I'm attaching an event log. This is a for a dummy user with the passwort 12345. I've typed only "1" initially. As soon as the "1" is pressed, the entry field fills up with the black points (although only one keyboard event is logged. Then I typed 2 and 3 and a couple of backspaces, but it didn't change anything. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

10:46

New subject: [Bug 338959] kdm input distorted until switch to textmode has been made ( likely a kernel bug)

https://bugzilla.novell.com/show_bug.cgi?id=338959#c3 --- Comment #3 from Moritz Mühlenhoff 2007-11-04 03:46:54 MST --- Created an attachment (id=181945) --> (https://bugzilla.novell.com/attachment.cgi?id=181945) Eventlog for typing 1 2 3 BS BS BS BS ... -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.