Description of problem: On my Sony VGN-FW51ZF/H laptopn then FN5 + FN6 Keys do not allow brightness to be controlled. Version-Release number of selected component (if applicable): How reproducible: Easily reproducible. Steps to Reproduce: 1. Press the FN5 key 2. 3. Actual results: Brightness of screen does not change Expected results: Brightness of screen should dim. Additional info: I think I've narrowed it down to either the sony-laptop or acpi modules. When pressing other keys, like the "AV Mode" key, I get a message in /var/log/messages which states. Nov 25 12:08:56 localhost kernel: sony-laptop: Unknown event: 0x100 0xa1 Nov 25 12:08:56 localhost kernel: sony-laptop: Unknown event: 0x100 0x21 However, pressing the FN5 + FN6 keys does not produce these messages so I'm assuming that they are being trapped but not working correctly. Thx Mark.
Please try this workaround: reboot your machine with the 'nomodeset' kernel parameter. This might be a duplicate of bug 519105 ?
Reassigned to correct component -- Fedora Bugzappers volunteer triage team https://fedoraproject.org/wiki/BugZappers
I tried the nomodeset option and it had no effect. The FN5/6 keys still do not affect the brightness of the display.
(In reply to comment #1) > Please try this workaround: reboot your machine with the 'nomodeset' kernel > parameter. This might be a duplicate of bug 519105 ? The question was not answered but I went through the bug #519105 I'm convinced this bug duplicates #519105. Therefore I close this as a duplicity. *** This bug has been marked as a duplicate of bug 519105 ***
Hi Jiri, I'm not sure what you mean by "This question was not answered" as if you'd taken just a few seconds you would have spotted my reponse which, to save you having to waste your obviously valueable time, I have reposted here. "I tried the nomodeset option and it had no effect. The FN5/6 keys still do not affect the brightness of the display.".. Regards Mark.
Hi Mark, I'm sorry I didn't explain it with accuracy. You really reacted on the comment #1 (I' spent more time than seconds with this issue :-)). I've mentioned the second part about duplicity to #519105 that is key point. Regards Jiri