I think my symptoms are closer to Mrts than Corey's. Hardware: Sager NP2090 (aka Compal IFL90) with bios version 1.13 Intel(R) Core(TM)2 Duo CPU T7300 @ 2.00GHz nVidia 8600M GT 512MB 2Gb Ram
I am running Kubuntu 8.04, 32bit version. I did an alternate install and use LVM to manage my partitions. (I've also installed Ubuntu 8.04, 32bit: the problems were the same.) The suspend problems have happened in Gnome, KDE, KDE4 and in single user mode. Symptoms: 1. If I use the nVidia driver packaged with [K]Ubuntu, the machine always sleeps but sometimes does not resume. (I typically have "desktop effects" on. Maybe this achieves the same effect as having glxgears running.) 2. If I use the nv driver, the machine always sleeps but NEVER resumes. 3. If I boot in single user mode, the machine sleeps and resumes but the internal LCD does not turn back on after resume. I know the OS is still running because I can issue a shutdown -r to properly reboot the machine. Even issuing a manual vbetool dpms on does not turn the LCD back on. There is a difference in the ACPI LCD state before and after resume: Before /proc/acpi/video/VGA/LCD/state state: 0x1f query: 0x01 After: /proc/acpi/video/VGA/LCD/state state: 0x1d query: 0x01 Network activity or lack of network activity has no effect whatsoever on whether or not the machine sleeps or resume. Hibernate behaves the same. In Gutsy everything worked properly. Because I ran Gutsy for a while with a Hardy kernel and did not experience any problem then, I think the problem is not with the kernel itself (and probably not with the nVidia driver either). Rather, I think something in userspace is interacting badly with the kernel. I have checked vbetools and udev and saw nothing there which was problematic. However, and this is **preliminary**, I think that setting: vm.mmap_min_addr = 0 in /etc/sysctl.conf I know that there is a line in the default sysctl.conf shipped with Hardy which sets that parameter to 65536. This line was not present in Gutsy but is present in Hardy. At the moment, I would say that after changing that parameter to 0, stability with the nVidia driver seems to have improved (or maybe I'm just really lucky). I have not tested again with nv. Unfortunately, it does not improve the situation in single user mode: the LCD stays off after resume. (Maybe there are really multiple bugs.) -- Suspend/hibernate does not work with HP Pavilion dv9340ea https://bugs.launchpad.net/bugs/203552 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
