[Bug 324894] Re: "Corrupted low memory at" kernel warning on resume
Had the same problem on an HP ZBook 15u G2 and Ubuntu 14.04 (Linux 3.16.0-31-generic). Since HP is officially offering this computer with Ubuntu preinstalled, I imagine that they are going to fix this with a future BIOS update (the notebook just got newly introduces). For now passing memory_corruption_check_size=128K appears to avoid the issue. Thanks @nutznboltz for the tip! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/324894 Title: "Corrupted low memory at" kernel warning on resume To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/324894/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 35455] Re: After hibernate, cooling on nc6220 does not restart
Ok, well it seems that I was actually wrong. The update changes the fan's behaviour a lot, so I thought the fans would come up again, but actually they still do not as they should. However, I found out that only those fans do not response after suspend to RAM or disk (I experienced the same problem with both methods), which had been switched on when the system suspends. Thus, the following fix now eventually really seems to work: I added the following script to /etc/acpi/suspend.d: File 85-fan-stop.sh <--> #!/bin/sh modprobe -r thermal for x in /proc/acpi/fan/*; do if [ "`grep on $x/state`" ]; then echo -n 3 > $x/state; fi done <--> This simply stops all fans before the system is suspended. This may make the system run a little bit hot when using suspend to disk, since writing all the pages to disk may take some time and the fans are turned off then. However it works very well for suspend to RAM. I also modified /etc/acpi/resume.d/72-acpi-pain.sh, but did not test yet, if this modification is really necessary. I just commented out the "modprobe -r thermal", "modprobe -r fan" and "modprobe fan" lines as well the "NNGH FAN HATE" part. -- After hibernate, cooling on nc6220 does not restart https://launchpad.net/bugs/35455 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 35455] Re: After hibernate, cooling on nc6220 does not restart
The given fix did not work for me, but I found that the newest HP BIOS ROM finally fixed all fan problems for my nx8220. Just as a tipp for all the people who still burn their fingers and mainboards because of not correctly working fans... -- After hibernate, cooling on nc6220 does not restart https://launchpad.net/bugs/35455 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 74877] Re: regression: suspend does not work on hp nw8240 with feisty
I just found this patch: http://lkml.org/lkml/2007/2/17/211 Will compile my own kernel and try it now... -- regression: suspend does not work on hp nw8240 with feisty https://launchpad.net/bugs/74877 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 74877] Re: regression: suspend does not work on hp nw8240 with feisty
Okay, the patch already was in the kernel source (release 2.6.20-9) and it is also enabled in linux-image-2.6.20-9-generic. However it does not seem to help for this problem. I also disabled the libata_piix driver completely, so the PATA only piix was used again, but resuming still did not work. The following procedure fixed the problem for me: 1. Disable the libata_piix kernel module (CONFIG_ATA_PIIX) 2. Apply the patch from http://marc.theaimsgroup.com/?l=linux-ide&m=116916643921306 , one line of the patch fails, it can easily be patched manually (just a line in the IDE makefile) 3. Activate the new CONFIG_BLK_DEV_IDEACPI kernel option 4. Compile and install the kernel and create a matching Initrd (update-initramfs) Standby now works like before and the new kernel finally fixes bug #21574 (speakers do not work after suspending). Unfortunately I have no idea how this could make its way into Feisty. Disabling libata_piix is probably not an option, since it also covers Intel SATA controllers, which are not covered by the plain old piix driver. Still, the IDE ACPI patch should be added! This (or a similiar) patch has been in Ubuntu kernels for some time now and I cannot understand why it was not applied to the new Feisty kernels anymore. The right way probably is to fix this libata ACPI code. I think that there is some function that is needed on this HP notebooks during resume, that the new libata ACPI functions do not call yet. However I don't think that this could make its way into Feisty, could it? Unfortunately I don't have the time to get into kernel development in the moment :-( -- regression: suspend does not work on hp nw8240 with feisty https://launchpad.net/bugs/74877 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 21574] Re: Only headphones work after suspend on HP nx8220
This is finally fixed in kernel 2.6.20 (Feisty)! However this kernel adds a new problem with suspend/resume on nx8220 and similar models: https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/74877 that can be fixed with some kernel patching. -- Only headphones work after suspend on HP nx8220 https://launchpad.net/bugs/21574 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 74877] Re: regression: suspend does not work on hp nw8240 with feisty
Sorry, I forgot: I tested using linux-image-2.6.20-8-generic. -- regression: suspend does not work on hp nw8240 with feisty https://launchpad.net/bugs/74877 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 74877] Re: regression: suspend does not work on hp nw8240 with feisty
The point is, that during version 5.04 I think, an IDE patch was included in the Ubuntu kernels (it's not in the official kernel, or at least was not for a long time), that calls _STM, _GTM and the like (I don't know what these commands exactly do?) to restore the IDE disk state after resuming from suspend to RAM, since many HP notebook BIOSes do not do this automatically. I just tested the Feisty kernel and experienced exactly the same problem with my NX8220 (=NC8230) notebook. This is not a bug in the graphics driver resume code or some highmem things! It looks to me as this patch was not yet incorporated into the new libata driver. Would be nice if you could port it if its not already available as a patch, since this would really make Feisty a no-option for me. -- regression: suspend does not work on hp nw8240 with feisty https://launchpad.net/bugs/74877 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 74877] Re: regression: suspend does not work on hp nw8240 with feisty
and the dmidecode output... ** Attachment added: "dmidecode" http://librarian.launchpad.net/6466482/dmidecode.out -- regression: suspend does not work on hp nw8240 with feisty https://launchpad.net/bugs/74877 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 74877] Re: regression: suspend does not work on hp nw8240 with feisty
This bug only effects suspend to RAM, not hibernation, since on hibernation the BIOS reinitalizes the IDE controller and hard disks. By the way I found the patch, or at least a patch that does the same thing: https://sourceforge.net/mailarchive/forum.php?thread_id=7329939&forum_id=6102 I don't have the new kernel installed at the moment, so no uname -a from me... ** Attachment added: "lspci -vvn" http://librarian.launchpad.net/6466481/lspci.out -- regression: suspend does not work on hp nw8240 with feisty https://launchpad.net/bugs/74877 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 671932] Re: Performance drop after suspend/resume cycle
*** This bug is a duplicate of bug 656279 *** https://bugs.launchpad.net/bugs/656279 Øyvind, thank you for that script. The graphics performance issue after suspend was bugging me for quite a while (up to a degree where it was considerably less fun to use my PC) and the disabling HT cores (+ reenabling them afterwards) instantly fixes the issue for me! :-) I am using an HP Elitebook 8440p with an NVIDIA Quadro NVS 3100M by the way. Ubuntu 10.04, 64 Bit. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/671932 Title: Performance drop after suspend/resume cycle -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 269904] Re: Screen refresh problems with nvidia on intrepid
I was finally able to completely circumvent this problem by enabling *both*
indirect rendering and loose bindings for compiz (by modifying the appropriate
line in /usr/bin/compiz). Compiz runs really fast now (a lot (!) faster than
with indirect-rendering only and even more faster than without both).
I'm running an unsupported combination of software versions however, so could
someone check whether this works with plain Intrepid, too?
I am running:
Ubuntu 8.04 with stock compiz 0.7.4
Nvidia driver 180.29, installed manually
on a Quadro FX 370 (dual monitor setup)
Without loose-bindings I especially had very bad performance when
running OpenGL applications with compiz enabled.
I now have in my /usr/bin/compiz:
build_args()
{
[...]
if check_nvidia; then
if [ "x$INDIRECT" != "xyes" ]; then
COMPIZ_OPTIONS="$COMPIZ_OPTIONS --loose-binding
--indirect-rendering "
fi
fi
}
--
Screen refresh problems with nvidia on intrepid
https://bugs.launchpad.net/bugs/269904
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