[Bug 356510] Re: [i965] Jaunty: random screen flashes
Thanks for uploading all the ACPI related information. I have opened this bug for linux and closed it for xorg and xserver-xorg-video-intel (FYI: xorg is just a meta-package for people who don't know which xorg- related package to put a bug into, and as such really makes no sense together with xserver-xorg-video-intel). ** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Changed in: xorg (Ubuntu) Status: New => Invalid ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Confirmed => Invalid -- [i965] Jaunty: random screen flashes 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] Jaunty: random screen flashes
** Description changed: - Binary package hint: xorg - 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: - 1) put brightness applet in your panel - 2) use mouse to push brightness to the max - 3) now keep pulling the button up (even after you reached the max) - - Result: button slides down again. This is funny and it goes along with - various uncanny dark flashes of the screen. - - ProblemType: Bug - Architecture: i386 - DistroRelease: Ubuntu 9.04 - Package: xorg 1:7.4~5ubuntu18 - ProcEnviron: - PATH=(custom, user) - LANG=en_CA.UTF-8 - SHELL=/bin/zsh - ProcVersion: Linux version 2.6.28-11-generic (bui...@palmer) (gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) ) #40-Ubuntu SMP Fri Apr 3 17:39:51 UTC 2009 - SourcePackage: xorg - Uname: Linux 2.6.28-11-generic i686 - - [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] + 1) use your hotkeys to set brightness to min (darkest screen) + 2) use your hotkey "brightness up" to go the 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 skips from 0 to 7 to 2 even though I press "brightness up". ** 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: + To reproduce the problem: 1) use your hotkeys to set brightness to min (darkest screen) - 2) use your hotkey "brightness up" to go the maximum brightness + 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 skips from 0 to 7 to 2 even though I press "brightness up". + The interesting thing here is that it dims from 0 to 7 to 2 even though I press "brightness up". -- [i965] Jaunty: random screen flashes 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] Jaunty: random screen flashes
OK, I attached whatever they wanted. I will try to update the bug description to give it in a nutshell since there is a lot of red herrings in the thread. -- [i965] Jaunty: random screen flashes 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] Jaunty: random screen flashes
** Attachment added: "acpi.tar.bz" http://launchpadlibrarian.net/24984414/acpi.tar.bz -- [i965] Jaunty: random screen flashes 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] Jaunty: random screen flashes
** Attachment added: "uname.txt" http://launchpadlibrarian.net/24984387/uname.txt -- [i965] Jaunty: random screen flashes 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] Jaunty: random screen flashes
** Attachment added: "lspci.txt" http://launchpadlibrarian.net/24984384/lspci.txt -- [i965] Jaunty: random screen flashes 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] Jaunty: random screen flashes
** Attachment added: "dmidecode.txt" http://launchpadlibrarian.net/24984375/dmidecode.txt -- [i965] Jaunty: random screen flashes 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] Jaunty: random screen flashes
** Attachment added: "kern.log.0" http://launchpadlibrarian.net/24984291/kern.log.0 -- [i965] Jaunty: random screen flashes 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] Jaunty: random screen flashes
Also tried some of the other brightness levels, the numbers never cohere or maybe I'm just missing the pattern. -- [i965] Jaunty: random screen flashes 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] Jaunty: random screen flashes
OK, I found "brightness", it doesn't list under locate. Here's the funny output: > xrandr --prop Screen 0: minimum 320 x 200, current 1280 x 800, maximum 1280 x 1280 VGA disconnected (normal left inverted right x axis y axis) LVDS connected 1280x800+0+0 (normal left inverted right x axis y axis) 286mm x 179mm EDID_DATA: 000030ae3140 00110103801d12780a2f309758538b29 2550540001010101010101010101 010101010101bc1b00a0502017303020 36001eb31018 000f0081 0a32810a28190100320c00f500fe 004c50315758312d544c43310078 PANEL_FITTING: full_aspect supported: center full_aspect full BACKLIGHT_CONTROL: kernel supported: native legacy combination kernel BACKLIGHT: 0 (0x) range: (0,7) 1280x800 59.9*+ 1024x768 85.0 75.0 70.1 60.0 832x62474.6 800x60085.1 72.2 75.0 60.3 56.2 640x48085.0 72.8 75.0 59.9 720x40085.0 640x40085.1 640x35085.1 TMDS-1 disconnected (normal left inverted right x axis y axis) > ls /proc/acpi/video/GFX0 DD01 DD02 DD03 DD04 DD05 DOS info POST POST_info ROM > cat /proc/acpi/video/GFX0/DD01/brightness > cat /proc/acpi/video/GFX0/DD02/brightness levels: 0 1 2 3 4 5 6 7 current: 7 > cat /proc/acpi/video/GFX0/DD03/brightness levels: 0 1 2 3 4 5 6 7 current: 1 > cat /proc/acpi/video/GFX0/DD04/brightness > cat /proc/acpi/video/GFX0/DD05/brightness So when I have max brightness, xrandr says I have brightness "0", in DD02 it's "7" and in DD03 it's "1". Have no idea why. I'll look into the acpi bug filing later, should I attach everything here or should we file a new bug? -- [i965] Jaunty: random screen flashes 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] Jaunty: random screen flashes
For sure you have a /proc/acpi directory. Do you have a video directory in there? If so, do you have a VID directory in there? If so, a LCD0 directory in there? If so, what files do you have there? Nothing under /proc are real files, it's a filesystem the kernel uses to inform/communicate with users and programs. Most of the so-called files there are text files, and you can read them with `cat filename`. In my case: $ cat /proc/acpi/video/VID/LCD0/brightness levels: 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 100 current: 75 I don't think the bug is in the intel driver. It is likely a ACPI bug that belongs in the kernel. Take a look at https://wiki.ubuntu.com/DebuggingACPI and upload the information they ask for. We'll assign the bug to the kernel after that. -- [i965] Jaunty: random screen flashes 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] Jaunty: random screen flashes
You might think that if it's at the max (in my case 0) and you press the hotkey "up" then it would always behave in the same way. But it doesn't: if it comes from 1-4-5-6-7-0 it bounces but not if it comes from 7-2-0. There must be some hidden variable. :) -- [i965] Jaunty: random screen flashes 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] Jaunty: random screen flashes
It's clearly the max for me when Backlight is on 0, don't know. You don't have this bouncing behavior? Maybe it's the intel video card. As for the brightness file, I can't find it, is it a text file? > locate brightness /etc/acpi/video_brightnessdown.sh /etc/acpi/video_brightnessup.sh /etc/acpi/events/asus-brightness-down /etc/acpi/events/asus-brightness-up /etc/acpi/events/panasonic-brightness-down /etc/acpi/events/panasonic-brightness-up /etc/acpi/events/video_brightnessdown /etc/acpi/events/video_brightnessup /etc/acpi/resume.d/50-tosh-restore-brightness.sh /etc/acpi/suspend.d/50-tosh-save-brightness.sh /etc/laptop-mode/conf.d/lcd-brightness.conf /usr/lib/gegl-0.0/brightness-contrast.so /usr/lib/gnome-power-manager/gnome-brightness-applet /usr/lib/hal/scripts/hal-system-lcd-get-brightness /usr/lib/hal/scripts/hal-system-lcd-set-brightness /usr/lib/hal/scripts/linux/hal-system-lcd-get-brightness-linux /usr/lib/hal/scripts/linux/hal-system-lcd-set-brightness-linux and some brightness icons. -- [i965] Jaunty: random screen flashes 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] Jaunty: random screen flashes
Strange... Does the same happen with /proc/acpi/video/VID/LCD0/brightness? (it goes up to max, drops down, etc.) Also, 0 should not be minimum, not maximum... On my computer it is BACKLIGHT: 12 (0x000c) range: (0,15) and the value goes from 0 (minimum) to 15 (maximum) -- [i965] Jaunty: random screen flashes 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] Jaunty: random screen flashes
Yes, there is no difference between the hotkeys and the brightness applet. That's why I thought it's probly not a gnome-panel issue. OK, here's the experiment, start out with dark screen (lowest brightness) and I keep going up in brightness: BACKLIGHT: 1 (0x0001) range: (0,7) now go up by one hotkey BACKLIGHT: 4 (0x0004) range: (0,7) go up by one hotkey BACKLIGHT: 5 (0x0005) range: (0,7) go up by one hotkey BACKLIGHT: 6 (0x0006) range: (0,7) go up by one hotkey BACKLIGHT: 7 (0x0007) range: (0,7) go up by one hotkey BACKLIGHT: 0 (0x) range: (0,7) max! now go up once more BACKLIGHT: 7 (0x0007) range: (0,7) go up again BACKLIGHT: 2 (0x0002) range: (0,7) goes down to 2! go up again BACKLIGHT: 0 (0x) range: (0,7) back to max! now go up again BACKLIGHT: 0 (0x) range: (0,7) and stays there... BACKLIGHT: 0 (0x) range: (0,7) even if I keep going up, now it's always BACKLIGHT: 0 (0x) range: (0,7) Note that this problem only occurs if I am at the min and go up to max then it bounces back to 2 and only then stays at the top. There is no such malfunction if I'm at the top and go to the min. I have a strong feeling that this behavior is related to the flashes. -- [i965] Jaunty: random screen flashes 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] Jaunty: random screen flashes
Good to know that it does not add anything to Xorg.0.log. That means we can exclude something calling xrandr as being the source of this bug. I'm not exactly sure where it belongs, but I guess probably the kernel. Screen brightness change goes through the ACPI interface and those bugs are filed to the kernel. In Xrandr.txt (output of `xrandr --verbose`) you have the following lines: BACKLIGHT_CONTROL: kernel supported: native legacy combination kernel BACKLIGHT: 0 (0x) range: (0,7) which bacally says that the kernel has control of the backlight and that it currently is at level 0 of 7. Could you verify that the first 0 on the last line changes when you turn the brightness up and down? And check what happens to this number when you go beyond the top. Another place to check the brightness level is in the /proc file system. On my computer /proc/acpi/video/VID/LCD0/brightness has information about the brightness level. You may want to check how this changes when you change the brightness level and you trigger the bug. Also, does the same happen when you use the hotkeys (Fn+something) to change the brightness level? (assuming that it works). -- [i965] Jaunty: random screen flashes 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] Jaunty: random screen flashes
you can try logging a non GNOME session, anyway as said that's probably not a gnome-panel issue closing this task now ** Changed in: gnome-panel (Ubuntu) Status: Incomplete => Invalid -- [i965] Jaunty: random screen flashes 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] Jaunty: random screen flashes
@Sebastien: actually, I don't know how to run gnome without a panel. :) It's probably not a gnome-panel bug, it's a problem with changing screen brightness. So that means it's an xorg bug? @Geir: I tried a little more and I can now confirm that a random flash (with me doing nothing on keyboard mouse etc.) does not change the file /var/log/Xorg.0.log. As I said in the updated description, my current conjecture would be that it is related to brightness changes of the screen. -- [i965] Jaunty: random screen flashes 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] Jaunty: random screen flashes
could you not run gnome-panel and see if that's still an issue? it's doubtfully a gnome-panel bug ** Changed in: gnome-panel (Ubuntu) Importance: Undecided => Low ** Changed in: gnome-panel (Ubuntu) Status: New => Incomplete ** Changed in: gnome-panel (Ubuntu) Assignee: (unassigned) => Ubuntu Desktop Bugs (desktop-bugs) -- [i965] Jaunty: random screen flashes 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] Jaunty: random screen flashes
** Also affects: gnome-panel (Ubuntu) Importance: Undecided Status: New ** Description changed: Binary package hint: xorg I have random screen flashes in Jaunty beta, where the screen goes black - for a split second. The bug is sort of the same as the old (and fixed) - Bug 91404 but it seems to have resurfaced here in Jaunty. My video card - is GMA X 3000 and my driver is xserver-xorg-video-intel. + for a split second. Similar flashes appear when I play around with the + brightness applet in the gnome-panel. + + To reproduce: + 1) put brightness applet in your panel + 2) use mouse to push brightness to the max + 3) now keep pulling the button up (even after you reached the max) + + Result: button slides down again. This is funny and it goes along with + various uncanny dark flashes of the screen. ProblemType: Bug Architecture: i386 DistroRelease: Ubuntu 9.04 Package: xorg 1:7.4~5ubuntu18 ProcEnviron: PATH=(custom, user) LANG=en_CA.UTF-8 SHELL=/bin/zsh ProcVersion: Linux version 2.6.28-11-generic (bui...@palmer) (gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) ) #40-Ubuntu SMP Fri Apr 3 17:39:51 UTC 2009 SourcePackage: xorg Uname: Linux 2.6.28-11-generic i686 [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] Jaunty: random screen flashes https://bugs.launchpad.net/bugs/356510 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-panel in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
