On Fri, Aug 23, 2013 at 09:05:34AM -0000, Aditya wrote: > Thanks Marwan for the detailed description of the bug.
You're welcome. > I just posted this as a fix for the users who were unable to change brightness, and I had no idea how deep the roots of this bug are. And, I don't blame you. I just took it as an oppurtunity for explaining the root cause of the problem in order to reduce the amount of trial-and-error for poeple experiencing the same problem. > In my case, both acpi_video0 and acpi_video1 do not work, i.e. the brightness > does not change and the system is functional. > When I use acpi_backlight=vendor things are different even if I disable > nmi_watchdog . But this thread is about the problem of the freeze that happens on some systems when adjusting the brightness, not about the issue of the brightness controls not working, while the system is functional. Disabling nmi_watchdog just makes us avoid this freeze. You are talking about a different issue here. Maybe you need to open a new bug report for this problem. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to fglrx-installer in Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
