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| roasted | hello | 13:22 |
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| savio | Bug #987630 | 22:29 |
| ubot2 | Launchpad bug 987630 in gnome-settings-daemon (Ubuntu) "changing brightness freezes computer" [Undecided,Confirmed] https://launchpad.net/bugs/987630 | 22:29 |
| savio | Anyone working on this | 22:29 |
| penguin42 | seems very unlikely that's a gsd bug | 22:36 |
| savio | penguin42: what's status ? bug is open for almost year | 22:43 |
| savio | Is anyone working on it | 22:43 |
| penguin42 | savio: Don't know, I mean it's undecided, so I doubt it | 22:43 |
| penguin42 | savio: What hardware do you have? | 22:44 |
| penguin42 | savio: And when it locks up can you still ctrl-alt-f1 to get to a text terminal (use ctrl-alt-f7 or f8 to get back if you're lucky) | 22:45 |
| savio | penguin42: dell inspiron laptop with Intel i3 and Intel HD graphics | 22:46 |
| savio | penguin42: when system freeze can't able to do anything only option is hard boot | 22:46 |
| savio | The problem is solved with boot option acpi_backlight=vendor on quental | 22:47 |
| penguin42 | ah ok | 22:48 |
| savio | But this option is not working with latest ubuntu | 22:48 |
| savio | Pe | 22:48 |
| penguin42 | ok, yeh it sounded like some acpi thing to me - I don't know too much about it | 22:48 |
| savio | penguin42: I tried acpi=off it works but no touchpad | 22:49 |
| penguin42 | savio: I suggest you add a comment saying that to bug 1007765 | 22:49 |
| ubot2 | Launchpad bug 1007765 in fglrx-installer (Ubuntu) "brightness adjusting crashes system" [Undecided,Confirmed] https://launchpad.net/bugs/1007765 | 22:49 |
| penguin42 | savio: It sounds like a disagreement between the kernel and the Dell BIOSs | 22:50 |
| savio | penguin42: I was thinking of downgrading my ubuntu kernel to 3.5 | 22:50 |
| savio | Also changing brightness manually works great /proc/sys/class/backlight/* | 22:52 |
| penguin42 | savio: OK, that's worth adding notes about | 22:52 |
| penguin42 | savio: I've only got a vague understanding how the brightness stuff works; but I think it's vaguely different on different machines | 22:53 |
| penguin42 | savio: Some BIOSs intercept the keypresses themselves and do it, some rely on the OS | 22:53 |
| savio | penguin42: k | 22:53 |
| penguin42 | savio: I've flipped that bug to kernel and marked it high like the other one | 22:53 |
| savio | penguin42: also have latest bios | 22:54 |
| penguin42 | savio: Please add a comment saying that the /proc works, and the acpi parameter worked for you | 22:54 |
| savio | For both the bug | 22:54 |
| penguin42 | yeh | 22:54 |
| savio | K | 22:54 |
| savio | U triage bug | 22:54 |
| penguin42 | triage but not fix | 22:54 |
| savio | I wanted to learn for sometimes I also try reading documentation but not get much | 22:55 |
| penguin42 | the new kernel apparently still has the acpi_backlight stuff in | 22:55 |
| savio | penguin42: but its not working with new kernel | 22:56 |
| penguin42 | yeh | 22:57 |
| penguin42 | savio: Do you have any 'video' modules loaded - I think lsmod | grep -i video | 22:57 |
| savio | Don't know I am on my android | 22:58 |
| penguin42 | ah | 22:58 |
| penguin42 | what model Dell did you say? | 22:59 |
| penguin42 | it's just there is a Dell laptop file in the kernel with a list of quirky models | 23:04 |
| penguin42 | hmm, although it's setup to use acpi backlight if configured | 23:05 |
| savio | Dell inspiron 15 | 23:06 |
| penguin42 | ok, anyway - probably better for an ACPI person to look at this, but add those things you found to the bugs; it's quite useful to know that the proc thing works for people stuck with it, because also that means that it's not actually the stuff that changes the backlight that's necessary broken | 23:08 |
| penguin42 | savio: I'd try rmmod'ing the video module | 23:11 |
| savio | U mean removing video module | 23:12 |
| penguin42 | nod, not sure what will happen! | 23:12 |
| savio | OK I will try that | 23:14 |
| savio | I have add comment on both the bugs u might check | 23:14 |
| savio | :) | 23:14 |
| penguin42 | nod, I'm subscribed to the 987630 - you should state exact model | 23:15 |
| savio | penguin42: how can I edit my comment | 23:25 |
| penguin42 | just add another - as long as you don't do it too often it's ok | 23:27 |
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