[Bug 356510] Re: [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636
Bernhard, thanks for testing and the feedback. Just fy, the upcoming kernel for the Karmic release will actually target the 2.6.31 kernel. Since the 2.6.30 kernel sounds promising to fix this issue, I wouldn't expect this issue to regress when the kernel is bumped to 2.6.31. The 2.6.30 based kernels are already available for testing in the Karmic Alpha releases, so for now I'm marking the linux (Ubuntu) task as Fix Released. However, if you do notice the issue return when using these newer kernels, please feel free to reopen this bug (ie set the Status from Fix Released back to New). Thanks. ** Changed in: linux (Ubuntu) Status: New = Fix Released -- [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636 https://bugs.launchpad.net/bugs/356510 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 356510] Re: [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636
Thanks for letting us know the issue is resolved. ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Incomplete = Fix Released -- [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636 https://bugs.launchpad.net/bugs/356510 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 356510] Re: [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636
I just played around a little with the 2.6.30 kernels from the jaunty repo (thx for putting them in!) and this particular problem seems to be fixed there. -- [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636 https://bugs.launchpad.net/bugs/356510 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 356510] Re: [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636
[This is an automatic notification.] A new major version of the -intel driver is now available in Karmic. This version includes a major reworking of the acceleration architecture, which resolves a huge number of issues. We do not know whether it resolves the issue you reported. Would you mind testing Karmic Alpha-2 and seeing if it is still a problem? CD ISO images are available here: http://cdimages.ubuntu.com/releases/karmic/ If the issue can still be reproduced on karmic, please report here with your findings, and attach a fresh Xorg.0.log from your test, and we will be able to forward the bug upstream. Otherwise, if the bug no longer exists in Karmic, let us know that as well. In the off chance you encounter different bugs while attempting to test Karmic, please report those as new bug reports. ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Confirmed = New ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: New = Incomplete -- [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636 https://bugs.launchpad.net/bugs/356510 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 356510] Re: [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636
I can confirm the same behavious as Bernhard, in that I suffer the random backlight flashes when moving the cursor following a period of inactivity, and running xrandr --output LVDS --set BACKLIGHT_CONTROL combination corrects the problem. Here are the first lines of lspci: 00:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub (rev 03) 00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 03) Please ask me for whatever additional information may be required and I'll provide it. -- [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636 https://bugs.launchpad.net/bugs/356510 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 356510] Re: [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636
** Tags added: xorg-needs-kernel-fix ** Tags removed: xorg -- [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636 https://bugs.launchpad.net/bugs/356510 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 356510] Re: [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636
** Description changed: I have random screen flashes in Jaunty beta, where the screen goes black for a split second. Similar flashes appear when I play around with the brightness applet in the gnome-panel. To reproduce the problem: 1) use your hotkeys to set brightness to min (darkest screen) 2) use your hotkey brightness up to go to maximum brightness 3) go further up beyond the max Result: the screen will go dark again. Going further up with brightness will at some point stabilize the maximum brightness. Example: my BACKLIGHT levels are 1-2-3-4-5-6-7-0 and if I start from 1 and keep hitting the brightness up hotkey then I get the pattern 1-4-5-6-7-0-7-2-0-0-0 The interesting thing here is that it dims from 0 to 7 to 2 even though I press brightness up. UPDATE: typing xrandr --output LVDS --set BACKLIGHT_CONTROL combination into a terminal fixes the problem. Thanks to Aldrin! + + [lspci] + 00:00.0 Host bridge [0600]: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub [8086:2a00] (rev 03) + Subsystem: Fujitsu Siemens Computers Device [1734:111f] + 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller [8086:2a02] (rev 03) + Subsystem: Fujitsu Siemens Computers Device [1734:111f] -- [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636 https://bugs.launchpad.net/bugs/356510 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 356510] Re: [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636
I filed a new bug which could be related to this issue. Bug #370773. -- [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636 https://bugs.launchpad.net/bugs/356510 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 356510] Re: [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636
I used Aldrin's advice from bug 367309 and that actually fixes my problem with the bizarre brightness settings (I have yet to long-term- test if the flashes go away as well). You type xrandr --output LVDS --set BACKLIGHT_CONTROL combination and the brightness behavior is completely normal again. How can I have this permanently set (instead of running a script everytime I login)? Maybe it could be fixed since many people have this intel video card. Shouldn't it be fixed in xserver-xorg-video-intel? -- [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636 https://bugs.launchpad.net/bugs/356510 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 356510] Re: [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636
** Description changed: I have random screen flashes in Jaunty beta, where the screen goes black for a split second. Similar flashes appear when I play around with the brightness applet in the gnome-panel. To reproduce the problem: 1) use your hotkeys to set brightness to min (darkest screen) 2) use your hotkey brightness up to go to maximum brightness 3) go further up beyond the max Result: the screen will go dark again. Going further up with brightness will at some point stabilize the maximum brightness. Example: my BACKLIGHT levels are 1-2-3-4-5-6-7-0 and if I start from 1 and keep hitting the brightness up hotkey then I get the pattern 1-4-5-6-7-0-7-2-0-0-0 The interesting thing here is that it dims from 0 to 7 to 2 even though I press brightness up. + + UPDATE: typing xrandr --output LVDS --set BACKLIGHT_CONTROL + combination into a terminal fixes the problem. Thanks to Aldrin! -- [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636 https://bugs.launchpad.net/bugs/356510 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
Re: [Bug 356510] Re: [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636
Maybe it could be fixed since many people have this intel video card. Shouldn't it be fixed in xserver-xorg-video-intel? I don't think everyone with the same video card has this problem, it's probably specific to the Amilo or even your particular model. I have the same video chipset as you have (except I have (rev0c) instead of (rev03) in the output of `lspci -vvnn`) and I don't have this problem. My guess is that it is a problem in how the kernel interfaces with your particular hardware. I don't know whereis the best place to change the backlight control setting permanently. Possibly, in ~/.config/monitors.xml if you have one, but maybe this is not possible. -- [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636 https://bugs.launchpad.net/bugs/356510 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 356510] Re: [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636
Unfortunately I was wrong, I still get these flashes even with xserver- xorg-video-intel 2.7. They seemed to get better but today they are back. Even with metacity window manager. Yesterday I even installed the 2.26.30 kernel for a while but I couldn't adjust any brightness settings in that one (hence no flashes). -- [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636 https://bugs.launchpad.net/bugs/356510 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 356510] Re: [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636
Apparently, there are many ways to control the backlight, and while using the kernel is the default on your hardware, it is possible to change that with xrandr. Take a look at bug 367309 for how to do this. Could you check if you have the same weird behavior with the other settings? ** Tags added: backlight ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Invalid = Confirmed -- [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636 https://bugs.launchpad.net/bugs/356510 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 356510] Re: [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636
I updated xorg-xserver-video-intel to 2.7 today and haven't had any flashes since (still testing though). But the strange brightness hierarchy (see description on top) remains. I wonder if bug 367309 is a duplicate of this one. -- [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636 https://bugs.launchpad.net/bugs/356510 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 356510] Re: [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636
Actually, hard to tell if it's a duplicate or not. The reporter of bug 367309 talks about a range 0-296 and if I type xrandr --prop, then I only have the range 0-7. -- [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636 https://bugs.launchpad.net/bugs/356510 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 356510] Re: [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636
The bugs are similar, but I'm not sure they are duplicate since it seems to be on different hardware and the default backlight control is different. I have tagged both bugs with the backlight tag, though, so if a solution comes up for one, the other bugs with that tag can be checked. -- [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636 https://bugs.launchpad.net/bugs/356510 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 356510] Re: [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636
This problem still persists with Kernel 2.6.28.11-generic. Could we get some feedback from the kernel people to confirm if it's really a kernel bug? -- [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636 https://bugs.launchpad.net/bugs/356510 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 356510] Re: [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636
** Summary changed: - [i965] Jaunty: random screen flashes + [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636 -- [i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636 https://bugs.launchpad.net/bugs/356510 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
