[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
** Changed in: xserver-xorg-video-intel Importance: Unknown = Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/538648 Title: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
** Changed in: xserver-xorg-video-intel Status: Confirmed = Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/538648 Title: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
** Changed in: xserver-xorg-video-intel Status: Fix Released = Confirmed ** Changed in: xserver-xorg-video-intel Importance: Medium = Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/538648 Title: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Alexis, On Mon, 2010-11-01 at 21:55 +, Alexis de Lattre wrote: @Russel, You will find an up-to-date summary of the situation at the very beginning of the bug report (your bug report ! :-), in the 3 first paragraphs of the bug description. I think the problem is that when Julien looked at this bug report, it wasn't clear which kernel version is the one that provides the fix so that the Debian folk can investigate whether they can issue that kernel for Squeeze. ** Description changed: [Status] Fixed in maverick Not fixed in lucid (bug still seen on 2010-09-22 with kernel 2.6.32-25) Debian Squeeze is still running the 2.6.32-5-amd64 kernel, Maverick is running 2.6.35-22. Does anyone know which changeset to which kernel series actually cures the problem? Do we even know whether this is a 2.6.32, 2.6.33, 2.6.34 or 2.6.35 issue? [Workaround] As workaround add the option i915.powersave=0 to the kernel command line in the grub config (for GRUB 2: edit /etc/default/grub and add i915.powersave=0 to GRUB_CMDLINE_LINUX, then run sudo update-grub; for GRUB 1: edit /boot/grub/menu.lst and add i915.powersave=0 to the end of the line beginning with # kopt=, then run sudo update-grub). [Alternative workaround for experts] - Compile your kernel with Andy Whitcroft's patch from http://people.canonical.com/~apw/lp538648-lucid/ (see comment #88). + Compile your kernel with Andy Whitcroft's patch from http://people.canonical.com/~apw/lp538648-lucid/ (see comment #92). I am not sure this is an option for the Debian folk, they need to run a kernel from the official series. Thanks. -- Russel. = Dr Russel Winder t: +44 20 7585 2200 voip: sip:russel.win...@ekiga.net 41 Buckmaster Roadm: +44 7770 465 077 xmpp: rus...@russel.org.uk London SW11 1EN, UK w: www.russel.org.uk skype: russel_winder -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Does anyone know when those comment numbers shifted? What once was comment #88 (Andy Whitcroft's patch) is now #92, breaking referrals. I filed bug 669722 about this. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Can someone summarize the actual real fix (not any workarounds) and/or highlight the changeset to whichever Debian/Ubuntu package to 601...@bugs.debian.org so that Debian Squeeze can have the problem resolved as well? -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
@Russel, You will find an up-to-date summary of the situation at the very beginning of the bug report (your bug report ! :-), in the 3 first paragraphs of the bug description. ** Description changed: [Status] Fixed in maverick Not fixed in lucid (bug still seen on 2010-09-22 with kernel 2.6.32-25) [Workaround] As workaround add the option i915.powersave=0 to the kernel command line in the grub config (for GRUB 2: edit /etc/default/grub and add i915.powersave=0 to GRUB_CMDLINE_LINUX, then run sudo update-grub; for GRUB 1: edit /boot/grub/menu.lst and add i915.powersave=0 to the end of the line beginning with # kopt=, then run sudo update-grub). [Alternative workaround for experts] - Compile your kernel with Andy Whitcroft's patch from http://people.canonical.com/~apw/lp538648-lucid/ (see comment #88). + Compile your kernel with Andy Whitcroft's patch from http://people.canonical.com/~apw/lp538648-lucid/ (see comment #92). [Report] Binary package hint: xserver-xorg When I first installed Lucid on my T500 I believe everything seemd to be fine with the display. Recently though the screen has started giving flashes -- as though there was some form of sync problem for the display. The flashes are of irregular frequency and occurrence. I haven't yet seen any pattern to the behaviour. They are however exceptionally annoying. I believe I am using the Intel chipset graphics device -- I am not actually aware of how to switch to using the alternate graphics hardware, but I am told it is not worth bothering with, so I haven't. I am using the Compiz window manager so I guess the problem could be there rather than with Xorg. There is no xorg.conf file so there is no overide of the default behaviour. I am not sure what programs to run to give useful output for this problem. I have attached the current Xorg log file. --- Architecture: amd64 DistroRelease: Ubuntu 10.04 DkmsStatus: virtualbox-ose, 3.1.4, 2.6.32-17-generic, x86_64: installed virtualbox-ose, 3.1.4, 2.6.32-16-generic, x86_64: installed virtualbox-ose-guest, 3.1.4, 2.6.32-17-generic, x86_64: installed virtualbox-ose-guest, 3.1.4, 2.6.32-16-generic, x86_64: installed InstallationMedia: Ubuntu 10.04 Lucid Lynx - Alpha amd64 (20100224.1) MachineType: LENOVO 20827SG Package: xserver-xorg-video-intel 2:2.9.1-1ubuntu16 PackageArchitecture: amd64 PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-17-generic root=UUID=d075e3b9-f26d-4896-9983-4afe962b115a ro quiet splash ProcVersionSignature: Ubuntu 2.6.32-17.26-generic 2.6.32.10+drm33.1 Tags: lucid lucid Uname: Linux 2.6.32-17-generic x86_64 UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare dmi.bios.date: 01/09/2009 dmi.bios.vendor: LENOVO dmi.bios.version: 6FET56WW (2.02 ) dmi.board.name: 20827SG dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr6FET56WW(2.02):bd01/09/2009:svnLENOVO:pn20827SG:pvrThinkPadT500:rvnLENOVO:rn20827SG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 20827SG dmi.product.version: ThinkPad T500 dmi.sys.vendor: LENOVO system: distro: Ubuntu codename: lucid architecture: x86_64 kernel: 2.6.32-17-generic [lspci] 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) Subsystem: Lenovo Device [17aa:2114] -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Any chance of getting this fix backported to Lucid? We have a fair number of systems rolled out with this hardware, and trying to explain the grub workaround to ordinary users is painful... AfC -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
I didn't investigate the exact state of the packages, but I observed an all-Intel Vaio running Maverick yesterday and it was showing the same flicker I saw in Lucid. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
I upgraded to Maverick 5 days ago, and I haven't seen any sync flash since then. So I consider that the bug is fixed in Maverick. I have a 8086:2a42 video card on a Dell Latitude Z600. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
On Dell Latitude E4310 amd64 I have the same problem too powersave=0 workaround does not work! kernels 2.6.32.21 or 2.6.32 22 do not have the problem ! kernel 2.6.32.23, 2.6.32.24, 2.6.32.25 have the flicker problem ! so some update from 2.6.32 22 to 2.6.32.23 is probably buggy -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Weird, I had removed the i915.powersave=0 and for a long time now (maybe a month) I had almost no flickering (could count them on one hand). However, today is hell. It is flickering every 3-4 minutes or so... I've check back the history of recently installed software, and I only have Chromium and FF nightly + tzdata + gwibber updated, so all unrelated to the Video system... Do you know when a fixed version of the video driver will be available for Lucid? PS: while waiting, I will add again the kernel parameter workaround. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
** Description changed: + [Status] + Fixed in maverick + Not fixed in lucid (bug still seen on 2010-09-22 with kernel 2.6.32-25) + [Workaround 1] Install Andy Whitcroft's test kernel from http://people.canonical.com/~apw/lp538648-lucid/ (see comment #88). [Workaround 2] As workaround add the option i915.powersave=0 to the kernel command line in the grub config (for GRUB 2: edit /etc/default/grub and add i915.powersave=0 to GRUB_CMDLINE_LINUX, then run sudo update-grub; for GRUB 1: edit /boot/grub/menu.lst and add i915.powersave=0 to the end of the line beginning with # kopt=, then run sudo update-grub). [Report] Binary package hint: xserver-xorg When I first installed Lucid on my T500 I believe everything seemd to be fine with the display. Recently though the screen has started giving flashes -- as though there was some form of sync problem for the display. The flashes are of irregular frequency and occurrence. I haven't yet seen any pattern to the behaviour. They are however exceptionally annoying. I believe I am using the Intel chipset graphics device -- I am not actually aware of how to switch to using the alternate graphics hardware, but I am told it is not worth bothering with, so I haven't. I am using the Compiz window manager so I guess the problem could be there rather than with Xorg. There is no xorg.conf file so there is no overide of the default behaviour. I am not sure what programs to run to give useful output for this problem. I have attached the current Xorg log file. --- Architecture: amd64 DistroRelease: Ubuntu 10.04 DkmsStatus: virtualbox-ose, 3.1.4, 2.6.32-17-generic, x86_64: installed virtualbox-ose, 3.1.4, 2.6.32-16-generic, x86_64: installed virtualbox-ose-guest, 3.1.4, 2.6.32-17-generic, x86_64: installed virtualbox-ose-guest, 3.1.4, 2.6.32-16-generic, x86_64: installed InstallationMedia: Ubuntu 10.04 Lucid Lynx - Alpha amd64 (20100224.1) MachineType: LENOVO 20827SG Package: xserver-xorg-video-intel 2:2.9.1-1ubuntu16 PackageArchitecture: amd64 PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-17-generic root=UUID=d075e3b9-f26d-4896-9983-4afe962b115a ro quiet splash ProcVersionSignature: Ubuntu 2.6.32-17.26-generic 2.6.32.10+drm33.1 Tags: lucid lucid Uname: Linux 2.6.32-17-generic x86_64 UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare dmi.bios.date: 01/09/2009 dmi.bios.vendor: LENOVO dmi.bios.version: 6FET56WW (2.02 ) dmi.board.name: 20827SG dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr6FET56WW(2.02):bd01/09/2009:svnLENOVO:pn20827SG:pvrThinkPadT500:rvnLENOVO:rn20827SG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 20827SG dmi.product.version: ThinkPad T500 dmi.sys.vendor: LENOVO system: distro: Ubuntu codename: lucid architecture: x86_64 kernel: 2.6.32-17-generic [lspci] 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) Subsystem: Lenovo Device [17aa:2114] -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
** Description changed: [Status] Fixed in maverick Not fixed in lucid (bug still seen on 2010-09-22 with kernel 2.6.32-25) - [Workaround 1] - Install Andy Whitcroft's test kernel from http://people.canonical.com/~apw/lp538648-lucid/ (see comment #88). + [Workaround] + As workaround add the option i915.powersave=0 to the kernel command line in the grub config (for GRUB 2: edit /etc/default/grub and add i915.powersave=0 to GRUB_CMDLINE_LINUX, then run sudo update-grub; for GRUB 1: edit /boot/grub/menu.lst and add i915.powersave=0 to the end of the line beginning with # kopt=, then run sudo update-grub). - [Workaround 2] - As workaround add the option i915.powersave=0 to the kernel command line in the grub config (for GRUB 2: edit /etc/default/grub and add i915.powersave=0 to GRUB_CMDLINE_LINUX, then run sudo update-grub; for GRUB 1: edit /boot/grub/menu.lst and add i915.powersave=0 to the end of the line beginning with # kopt=, then run sudo update-grub). + [Alternative workaround for experts] + Compile your kernel with Andy Whitcroft's patch from http://people.canonical.com/~apw/lp538648-lucid/ (see comment #88). [Report] Binary package hint: xserver-xorg When I first installed Lucid on my T500 I believe everything seemd to be fine with the display. Recently though the screen has started giving flashes -- as though there was some form of sync problem for the display. The flashes are of irregular frequency and occurrence. I haven't yet seen any pattern to the behaviour. They are however exceptionally annoying. I believe I am using the Intel chipset graphics device -- I am not actually aware of how to switch to using the alternate graphics hardware, but I am told it is not worth bothering with, so I haven't. I am using the Compiz window manager so I guess the problem could be there rather than with Xorg. There is no xorg.conf file so there is no overide of the default behaviour. I am not sure what programs to run to give useful output for this problem. I have attached the current Xorg log file. --- Architecture: amd64 DistroRelease: Ubuntu 10.04 DkmsStatus: virtualbox-ose, 3.1.4, 2.6.32-17-generic, x86_64: installed virtualbox-ose, 3.1.4, 2.6.32-16-generic, x86_64: installed virtualbox-ose-guest, 3.1.4, 2.6.32-17-generic, x86_64: installed virtualbox-ose-guest, 3.1.4, 2.6.32-16-generic, x86_64: installed InstallationMedia: Ubuntu 10.04 Lucid Lynx - Alpha amd64 (20100224.1) MachineType: LENOVO 20827SG Package: xserver-xorg-video-intel 2:2.9.1-1ubuntu16 PackageArchitecture: amd64 PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-17-generic root=UUID=d075e3b9-f26d-4896-9983-4afe962b115a ro quiet splash ProcVersionSignature: Ubuntu 2.6.32-17.26-generic 2.6.32.10+drm33.1 Tags: lucid lucid Uname: Linux 2.6.32-17-generic x86_64 UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare dmi.bios.date: 01/09/2009 dmi.bios.vendor: LENOVO dmi.bios.version: 6FET56WW (2.02 ) dmi.board.name: 20827SG dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr6FET56WW(2.02):bd01/09/2009:svnLENOVO:pn20827SG:pvrThinkPadT500:rvnLENOVO:rn20827SG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 20827SG dmi.product.version: ThinkPad T500 dmi.sys.vendor: LENOVO system: distro: Ubuntu codename: lucid architecture: x86_64 kernel: 2.6.32-17-generic [lspci] 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) Subsystem: Lenovo Device [17aa:2114] -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Forget what I said in my previous comment ; I just saw my screen flickering :-) But I should say that it's much less frequent than before. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Upgraded to Maverick beta and haven't seen any flickers since then. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Since the last kernel update (version 2.6.32-24.42), I haven't seen any flickers. I DON'T use i915.powersave=0. I have a Dell Latitude Z600 laptop. PCI ID : 8086:2a42 (rev 07) Subsystem: 1028:02c8 -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
I can confirm that this does NOT happen when you 2 displays working simultaneously, e.g. external display attached to HDMI working as primary display and laptop internal display working as secundary (extended) display. However as soon as you de-attach external display, internal laptop display starts to flickers on random basis. What seems to make flicker more intensive is if you open terminal in full screen (black background color). Adding i915.powersave=0, solves the issue on my laptop: HP, Intel GMA 4500M, Intel GL40. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
I have HP2230s and i915.powersave=0 does not work for me. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
I experiense the same problem on my Asus X5dij laptop, which has also an integreted Intel 4 Series Express Video Card(Intel GMA 4500M) and Intel GL40 Chipset. My whole screen flickers. It is really unpleasent for my eyes. I can see the horizontal refresh lines. So I've tried to create a xorg.conf and to add a Modeline, as I believed that the problem is due to wrong Horizontal sync value. But I had no success and the problem still exists. I have also tried the kernel from the Comment #88 and to use i915.powersave=0, but neither solution was successful. I hope that someone will find a solution to this problem. Thanks. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
I just switched to 32 bit ubuntu with pae kernel and the problem persists. I still don't know if the problem is from ubuntu itself or from this repository: https://launchpad.net/~ubuntu-x-swat/+archive/x-updates Can anyone confirm this problem happening without this repository? Thanks. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
With the current updates, it seems to occur in pairs, twice in quick succession now. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
This bug is absolutely annoying and implicitly also a security issue since I'm using apw's kernel mentioned as a workaround, so I'm not able to fetch security updates to the kernel. (workaround no. 2 is not an option since battery life is important to me.) Is there a good reason for not including the patches from apw's kernel into the official ubuntu kernels to make the flicker disappear? -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
@Max good question, interestet in this too, nobody is stating if or when this will be included... -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
i915.powersave=0 fixes it on my Lenovo Edge, batterie time seems to get down a lot is this possible? -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
powersave=0 works for me too on my T500. Regarding the battery drain: this is totally screwed up because of https://bugs.launchpad.net/ubuntu/+source/linux/+bug/524281 anyhow for me. I get good battery with the modified kernel from there. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
I have this same problem on my Lenovo G450. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
It may be worth noting that the effect is far easier to see in lower surrounding light levels: in darker room light. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Neither installing Andy Whitcroft's test kernel nor the option i915.powersave=0 helped with me (Lenovo Think Pad T400s). To get rid of the annoying flickering, I re-installed Karmic Koala. I hope the bug will be solved at least for the next distribution. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
same here. neither of the workarounds work for me perfectly. kinda annoying actually. On Sat, Jul 3, 2010 at 3:05 PM, Martin Schraner schra...@env.ethz.chwrote: Neither installing Andy Whitcroft's test kernel nor the option i915.powersave=0 helped with me (Lenovo Think Pad T400s). To get rid of the annoying flickering, I re-installed Karmic Koala. I hope the bug will be solved at least for the next distribution. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a direct subscriber of the bug. Status in X.org xf86-video-intel: Unknown Status in “linux” package in Ubuntu: Triaged Status in “xserver-xorg-video-intel” package in Ubuntu: Invalid Bug description: [Workaround 1] Install Andy Whitcroft's test kernel from http://people.canonical.com/~apw/lp538648-lucid/ (see comment #88). [Workaround 2] As workaround add the option i915.powersave=0 to the kernel command line in the grub config (for GRUB 2: edit /etc/default/grub and add i915.powersave=0 to GRUB_CMDLINE_LINUX, then run sudo update-grub; for GRUB 1: edit /boot/grub/menu.lst and add i915.powersave=0 to the end of the line beginning with # kopt=, then run sudo update-grub). [Report] Binary package hint: xserver-xorg When I first installed Lucid on my T500 I believe everything seemd to be fine with the display. Recently though the screen has started giving flashes -- as though there was some form of sync problem for the display. The flashes are of irregular frequency and occurrence. I haven't yet seen any pattern to the behaviour. They are however exceptionally annoying. I believe I am using the Intel chipset graphics device -- I am not actually aware of how to switch to using the alternate graphics hardware, but I am told it is not worth bothering with, so I haven't. I am using the Compiz window manager so I guess the problem could be there rather than with Xorg. There is no xorg.conf file so there is no overide of the default behaviour. I am not sure what programs to run to give useful output for this problem. I have attached the current Xorg log file. --- Architecture: amd64 DistroRelease: Ubuntu 10.04 DkmsStatus: virtualbox-ose, 3.1.4, 2.6.32-17-generic, x86_64: installed virtualbox-ose, 3.1.4, 2.6.32-16-generic, x86_64: installed virtualbox-ose-guest, 3.1.4, 2.6.32-17-generic, x86_64: installed virtualbox-ose-guest, 3.1.4, 2.6.32-16-generic, x86_64: installed InstallationMedia: Ubuntu 10.04 Lucid Lynx - Alpha amd64 (20100224.1) MachineType: LENOVO 20827SG Package: xserver-xorg-video-intel 2:2.9.1-1ubuntu16 PackageArchitecture: amd64 PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-17-generic root=UUID=d075e3b9-f26d-4896-9983-4afe962b115a ro quiet splash ProcVersionSignature: Ubuntu 2.6.32-17.26-generic 2.6.32.10+drm33.1 Tags: lucid lucid Uname: Linux 2.6.32-17-generic x86_64 UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare dmi.bios.date: 01/09/2009 dmi.bios.vendor: LENOVO dmi.bios.version: 6FET56WW (2.02 ) dmi.board.name: 20827SG dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr6FET56WW(2.02):bd01/09/2009:svnLENOVO:pn20827SG:pvrThinkPadT500:rvnLENOVO:rn20827SG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 20827SG dmi.product.version: ThinkPad T500 dmi.sys.vendor: LENOVO system: distro: Ubuntu codename: lucid architecture: x86_64 kernel: 2.6.32-17-generic [lspci] 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) Subsystem: Lenovo Device [17aa:2114] To unsubscribe from this bug, go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/538648/+subscribe -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
What about including the #88 patch in the official kernel of Lucid (or in the proposed repository)? It should not affect the power consuming of the card. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
** Changed in: linux (Ubuntu) Status: Confirmed = Triaged -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
I have a 8086:2a42 video card and successfully used the i915.powersave=0 option to stop the sync flashes. I installed Andy Whitcroft's kernel and removed the i915.powersave=0 option yesterday. Everything continue to work fine ; no sync flashes at all. @Peter : it seems that FBC means FrameBuffer Compression... -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
+1 for me as well... can we expect the fixes with Andy's test Kernel to be included in upcoming updates? -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Andy Whitcroft's test kernel works just fine on Lenovo T500 with Intel Corporation Mobile 4 Series. thx for that!!! cause with i915.powersave=0 sleep/suspend does not work. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Loading the kernel with i915.powersave=0 stops the flickering in my case. Next week I will try the new kernel in post #88. I have an Intel 4500MHD. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
+1 confirmed. I'm on a Lenovo G550 and adding the i915.powersave=0 appears to have stopped the flickering. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
+1 confirmed. Asus UL80 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) 00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) Installed http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.34-lucid/ for touchpad to work on multitap (horizontal scroll) and FN+F9. I didn't try the grub workaround, I feel there is a drawback to it (maybe its just me). Screen flicker shows up once or twice when fresh from boot, but after that it won't happen for some hours. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
+1 confirmed here. Dell Inspiron 1545, 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) 00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07). Occurs in 10.04. Did not occur in 9.04. I am not interested in using either workaround. My thanks to those whom continue to research this. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Seeing flicker on maverick with ubuntu's mainline 2.6.35rc1 kernel. No flicker with stock maverick. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
The kernels in #88 have worked perfectly for me, for about a week now. Thanks! $ lspci -s 00:02.0 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Hi, I tried installing Andy's kernels but the results are not very good. While I get about 2-3 flickers/day normally, the rate gets higher when I try to run a heavy application. If at the same time, I do the powersave thing, the flickers seem to go away. Can anybody tell me if I am going to run into some loss in terms of hardware (like battery and CPU life time) if I do the powersave thing ? I don't mind using this workaround for the time being, if it doesnt cost me anything !! I love my computer more than I hate the flickers though!! Let me know if you need to have any information about my system. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Same problem in Acer Aspire 5738Z with Intel Graphics Media Accelerator. Does this problem happen in 32 bit pae enabled ubuntu? the option i915.powersave=0 is not an option for me due to battery life. Thanks. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
** Description changed: - [Workaround] + [Workaround 1] + Install Andy Whitcroft's test kernel from http://people.canonical.com/~apw/lp538648-lucid/ (see comment #88). + + [Workaround 2] As workaround add the option i915.powersave=0 to the kernel command line in the grub config (for GRUB 2: edit /etc/default/grub and add i915.powersave=0 to GRUB_CMDLINE_LINUX, then run sudo update-grub; for GRUB 1: edit /boot/grub/menu.lst and add i915.powersave=0 to the end of the line beginning with # kopt=, then run sudo update-grub). [Report] Binary package hint: xserver-xorg When I first installed Lucid on my T500 I believe everything seemd to be fine with the display. Recently though the screen has started giving flashes -- as though there was some form of sync problem for the display. The flashes are of irregular frequency and occurrence. I haven't yet seen any pattern to the behaviour. They are however exceptionally annoying. I believe I am using the Intel chipset graphics device -- I am not actually aware of how to switch to using the alternate graphics hardware, but I am told it is not worth bothering with, so I haven't. I am using the Compiz window manager so I guess the problem could be there rather than with Xorg. There is no xorg.conf file so there is no overide of the default behaviour. I am not sure what programs to run to give useful output for this problem. I have attached the current Xorg log file. --- Architecture: amd64 DistroRelease: Ubuntu 10.04 DkmsStatus: virtualbox-ose, 3.1.4, 2.6.32-17-generic, x86_64: installed virtualbox-ose, 3.1.4, 2.6.32-16-generic, x86_64: installed virtualbox-ose-guest, 3.1.4, 2.6.32-17-generic, x86_64: installed virtualbox-ose-guest, 3.1.4, 2.6.32-16-generic, x86_64: installed InstallationMedia: Ubuntu 10.04 Lucid Lynx - Alpha amd64 (20100224.1) MachineType: LENOVO 20827SG Package: xserver-xorg-video-intel 2:2.9.1-1ubuntu16 PackageArchitecture: amd64 PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-17-generic root=UUID=d075e3b9-f26d-4896-9983-4afe962b115a ro quiet splash ProcVersionSignature: Ubuntu 2.6.32-17.26-generic 2.6.32.10+drm33.1 Tags: lucid lucid Uname: Linux 2.6.32-17-generic x86_64 UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare dmi.bios.date: 01/09/2009 dmi.bios.vendor: LENOVO dmi.bios.version: 6FET56WW (2.02 ) dmi.board.name: 20827SG dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr6FET56WW(2.02):bd01/09/2009:svnLENOVO:pn20827SG:pvrThinkPadT500:rvnLENOVO:rn20827SG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 20827SG dmi.product.version: ThinkPad T500 dmi.sys.vendor: LENOVO system: distro: Ubuntu codename: lucid architecture: x86_64 kernel: 2.6.32-17-generic [lspci] 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) Subsystem: Lenovo Device [17aa:2114] -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
I get this on my Dell Inspiron 1750 with Intel Graphics card. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
I have the exact same symptoms as comment #72 on an HP dv4 laptop Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) on gnome. No problems using karmic. Random flickering on the bottom quarter of screen started after upgrade. Two things I've observed: - The flickering NEVER happens (on either screen) if I have my external screen plugged in. - It seems to get much worse with the terminal open and on top. the i915.powersave=0 thing didn't work for me. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Update Getting a flicker again not bad, one or two a day, so it was hard to know if this kernal thing works or not, well I guess it doesn't for me. tnx -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Andy no flicker Dell Inspiron 1545 laptop I added then deleted the i915.powersave=0 from line GRUB_CMDLINE_LINUX i915.powersave=0 and loaded the new 64bit patched kernal located in your link and no flicker. (the i915.powersave=0 fix worked for me) It has only been a day but i think its a winner it works.(little too early to tell though100 percent) I don't know what a FBC is, buts thats fine by me lol. P.S. I started a blog a while back still going, same Issue http://ubuntuforums.org/showthread.php?t=1473580 I also posted a bug report so there is a duplicate out there. Thanks -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
I would beg to differ here, I have a compaq NC6220 with the intel 915GM and it flickers like crazy when under any CPU load. Tried the modeset Fresh install here as well, Tried the i915.powersave=0 thing, no joy X.Org X Server 1.7.6 r...@nc6220:/etc# cat lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=10.04 DISTRIB_CODENAME=lucid DISTRIB_DESCRIPTION=Ubuntu 10.04 LTS r...@nc6220:/etc# uname -r 2.6.32-22-generic r...@nc6220:/etc# lspci -s 00:02.0 00:02.0 VGA compatible controller: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller (rev 03) -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
@Brian Threlkeld: Are you sure that you are effectivelly using the suggested parameter? For example you could forgot the 'update-grub' command. Check the effective use with: dmesg | grep 'Kernel command' -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Yep, pretty familiar with how to do that, currently driving a project at my company where we are deploying 100's of ubuntu desktops... But to answer your question Mario, r...@nc6220:/# dmesg | grep 'Kernel command' [0.00] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-2.6.32-22-generic root=UUID=56efd8c3-56e5-420b-b6be-14d7919778a6 ro quiet splash i915.powersave=0 r...@nc6220:/# Look ok? -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Strange thing is (and this is a home laptop, not part of my work project) it runs fine after reboot, then after some time the flickering starts to come back when the CPU gets loaded up. I was also mainly addressing Robert Hooker's comment: JC: 915GM wasn't affected by this, and we disabled FBC on 915GM/945GM a few months ago already. When in fact I have the subject card and current kernel and it isnt fixed. Thanks Brian -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
FBC patch works like a charm, thx to Andy Whitcroft for the compiled kernel! -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
@ Andy Whitcroft I hadn't the time to try that kernel of yours but latter maybe this weekend I'll try then. I have another *maybe interesting* fact to report: I installed KDE in this Ubuntu 10.04 and since then I have no screen glitches/flickering! Nothing at all. Even in Gnome. Maybe this problem/bug is related to the gnome-power-manager or something? Notice I'm running '2.6.32-22-generic' kernel and this Ubuntu 10.04 was a fresh install. I have an Intel 915GM Chipset in this Sony laptop and X.Org X Server 1.7.6. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
JC: 915GM wasn't affected by this, and we disabled FBC on 915GM/945GM a few months ago already. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
@JC -- could you test the kernels in comment #88 and see if those fix the issue for you. Do ensure you do not have the frequency fixed when testing. Please report back here. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
@wolfgang -- not necessarily as the kernel has a lot of different patches applied in maverick which are not in -rc7. Some of those affect the specific option we are testing on here on some hardware. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
@wolfgang -- indeed could you also test the kernels in comment #88 and report back. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
@Andy The kernel from comment #88 looks flicker free to me now for over 5 hours. I have already been testing it as indicated in my comment #90. details to make sure: uptime; dmesg |grep Command line; dmesg |grep Linux version 16:01:03 up 5:20, 4 users, load average: 0.42, 0.97, 0.97 [0.00] Command line: BOOT_IMAGE=/boot/vmlinuz-2.6.32-22-generic root=/dev/sda7 [0.00] Linux version 2.6.32-22-generic (r...@chloe) (gcc version 4.4.3 (Ubuntu 4.4.3-3ubuntu1) ) #34~lp538648v201005171834 SMP Mon May 17 17:55:25 UTC 2010 (Ubuntu 2.6.32-22.34~lp538648v201005171834-generic 2.6.32.11+drm33.2) About your comment #94: Is there a solution in those maverick patches to rc7 or do they just work around the issue? -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Andy, I have been using the kernel in comment 88 for about 6 hours now without flickering. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
@Jeff250, @Robert Hooker: well that certainly explains the mystery for me at least anyway. I never realized that i915.powersave=0 had been default in -15 (and should have read the other 81 comments before mine) -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Can't see any flickering on a current ubuntu 10.10 (maverick). Which surprises me since I saw flickering with kernel 2.6.34-999 on lucid (see comment 79). (All this with [8086:2a42].) -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Changed in: linux (Ubuntu) Milestone: None = lucid-updates ** Changed in: linux (Ubuntu) Status: New = Confirmed ** Changed in: linux (Ubuntu) Importance: Undecided = Medium -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Ok since this is for sure a kernel problem I've opened a new task for it. Thank you for the confirmation that the problem is fixed in 2.6.34-rc7. It would be especially helpful if anyone could narrow down which 2.6.34-rc the problem was fixed by installing different mainline kernels until you find one where it is fixed. I would start at 2.6.34-rc1 and work your way up. Andy Whitcroft is building a test kernel that just disables FBC on this device as well, but if we could narrow down where it was fixed it would be a great help. Also, please do make sure that you are not using powersave=0 when you test the .34 kernels before saying it is fixed. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
I have built some test kernels with FBC disabled for the GM45 hardware reported here. If those of you affected by this flickering issue could test these kernels and report back here that would be great. Please remember to test without the i915.powersave=0 override else the test is meaningless. The kernels are uploading now and will be at the URL below shortly: http://people.canonical.com/~apw/lp538648-lucid/ Thanks! -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
invalidating the xserver-xorg-video-intel target, it was just on here for easier tracking. ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Triaged = Invalid -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Andy, no flicker seen in the first 35 minutes of using your FBC disabled kernel on lucid. dmesg |grep Command line [0.00] Command line: BOOT_IMAGE=/boot/vmlinuz-2.6.32-22-generic root=/dev/sda7 dmesg |grep Linux version [0.00] Linux version 2.6.32-22-generic (r...@chloe) (gcc version 4.4.3 (Ubuntu 4.4.3-3ubuntu1) ) #34~lp538648v201005171834 SMP Mon May 17 17:55:25 UTC 2010 (Ubuntu 2.6.32-22.34~lp538648v201005171834-generic 2.6.32.11+drm33.2) -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Robert, I do not quite follow your your comment #87 about flicker being fixed in 2.6.34-rc7 and trying the different 2.6.34-rc's. From my comment #79 the daily mainline kernel from May 12th compiled for lucid tried with lucid flickers. And that daily kernel is newer then rc7. And I just tried the rc7-lucid itself in lucid and it flickers. Jeff250's comment #81 sounds like lucid is flicker free with the maverick kernel (compiled for maverick)? And maverick (ubuntu 10.10) is also flicker free (my comment #86). So does that not mean it is how the kernel is compiled that makes the flicker go away? -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Hello, I also have this weird bug in my Sony Vaio VGN-FJ1S with an Intel 915 VGA. Strangely this only started yesterday I guess (!) Well more important: I found a workaround for this: Add to Panel... CPU Frequency Scaling Monitor and then I set it to work at 1.33 GHz (the max. for me it's 1.73 GHz) and it's ok, no more screen dim/flickering ! Nevertheless I hope this will be fixed soon. Cheers, JC -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
** Summary changed: - [Intel GM45] Irregular sync flashes (Lenovo T500, Dell Insp. 1545) + [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
I have a Dell Inspiron 1545 with the same video card (same lspci output) as Alexis de Lattre (#74) and the workaround has kept me flicker-free all morning. Has everyone still posting that they have this problem tried the workaround? (See the bug description.) -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
Robert, I have been using the latest maverick kernel for about 24 hours now: $ uname -r 2.6.34-2-generic I have an Inspiron 1545 and the Intel GM45: $ lspci | grep -i graphics 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) 00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) I was previously using the i915.powersave workaround. To test the newer kernel, I installed it, and disabled the i915.powersave workaround. To ensure that it was disabled, I rebooted into the lucid kernel again, and the flickering returned--about every few minutes, like before. Now I've been booted into the latest maverick kernel for about 24 hours now without seeing any flickering. Given how frequently I saw the flickering before, I think that it is likely that the maverick kernel has resolved the issue. However, given the flickering's nondeterministic nature, I will continue using the maverick kernel and post back if the flickering returns. Let me know if there is anything else I can do, short of using git- bisect, to help you track this down. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
I ran Lucid alpha/daily installs since about January IIRC, and am 99% sure that the flicker problem first occurred with kernel image 2.6.32-16 (http://ubuntuforums.org/showpost.php?p=8942276postcount=9). It's possible that the problem has been fixed upstream in 2.6.34 (or .33 even), but if you're looking to find the culprit, there will be far fewer differences between the two Ubuntu packages of 2.6.32-15 and 2.6.32-16, than a complete different kernel version. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
According to comment 5, we already know why the -15 kernel had no flicker issues: it had i915.powersave=0 by default. -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 538648] Re: [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk)
The -16 kernel backported the entire drm from 2.6.33 back to the 2.6.32 kernel, so your statement about it being less isn't true unfortunately -- [Intel GM45] Irregular sync flashes on 8086:2a42 (Needs i915.powersave quirk) https://bugs.launchpad.net/bugs/538648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
