* Re: [PROBLEM] 2.6.3-rc1: still no suspend/resume on Centrino notebook [not found] <c05m86$20g$1qsea.gmane.org> @ 2004-02-08 17:17 ` Georg C F Greve 2004-02-08 17:46 ` Ari Pollak 0 siblings, 1 reply; 5+ messages in thread From: Georg C F Greve @ 2004-02-08 17:17 UTC (permalink / raw) To: linux-kernel; +Cc: Ari Pollak > I should clarify that this does not happen on *all* Centrino > notebooks (and not the ones I've tried), only some. Do you still remember which notebooks you did _not_ encounter these problems with? More particularly which chipsets they had? I've seen so many reports for this problem that it would be interesting to know where it does _not_ exist. The number of notebooks with that problem seems considerable -- people reported these problems on different Centrino notebooks from different vendors, particularly ASUS M and S series ACER TravelMate IBM Thinkpad R50P that all seemed to have precisely one thing in common: the Intel 855GM centrino chipset. Similar problems have also been reported from Fujitsu-Siemens e6624 notebook, which has an intel i830 chipset. As the kernel 2.6 currently seems to use the i830 AGP driver for the Intel 855GM chipset, those two might (or might not) be related. That we have not seen more reports is probably because people are still mostly using 2.4.x on their notebooks, which was better for suspend/resume (I'm using a patched 2.4.24 as I'm writing this). Regards, Georg ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PROBLEM] 2.6.3-rc1: still no suspend/resume on Centrino notebook 2004-02-08 17:17 ` [PROBLEM] 2.6.3-rc1: still no suspend/resume on Centrino notebook Georg C F Greve @ 2004-02-08 17:46 ` Ari Pollak 2004-02-08 18:32 ` Georg C F Greve 0 siblings, 1 reply; 5+ messages in thread From: Ari Pollak @ 2004-02-08 17:46 UTC (permalink / raw) To: linux-kernel The Thinkpad T40 and T41 at least; they suspend & resume properly, but there are still interrupt-losing problems when resuming, which is a totally separate issue. I believe they both use the 8255PM chipset: 00:00.0 Host bridge: Intel Corp. 82855PM Processor to I/O Controller (rev 03) There have been a few discussions on the ACPI list about this, as well as bugs 1661 and 1409. Georg C F Greve wrote: > Do you still remember which notebooks you did _not_ encounter these > problems with? More particularly which chipsets they had? I've seen so > many reports for this problem that it would be interesting to know > where it does _not_ exist. > > The number of notebooks with that problem seems considerable -- people > reported these problems on different Centrino notebooks from different > vendors, particularly > > ASUS M and S series > ACER TravelMate > IBM Thinkpad R50P > > that all seemed to have precisely one thing in common: the Intel 855GM > centrino chipset. > > Similar problems have also been reported from Fujitsu-Siemens e6624 > notebook, which has an intel i830 chipset. As the kernel 2.6 currently > seems to use the i830 AGP driver for the Intel 855GM chipset, those > two might (or might not) be related. > > That we have not seen more reports is probably because people are > still mostly using 2.4.x on their notebooks, which was better for > suspend/resume (I'm using a patched 2.4.24 as I'm writing this). > > Regards, > Georg ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PROBLEM] 2.6.3-rc1: still no suspend/resume on Centrino notebook 2004-02-08 17:46 ` Ari Pollak @ 2004-02-08 18:32 ` Georg C F Greve 2004-02-08 23:22 ` Matthias Hentges 0 siblings, 1 reply; 5+ messages in thread From: Georg C F Greve @ 2004-02-08 18:32 UTC (permalink / raw) To: linux-kernel; +Cc: Ari Pollak, greve > The Thinkpad T40 and T41 at least; they suspend & resume properly, > but there are still interrupt-losing problems when resuming, which > is a totally separate issue. I believe they both use the 8255PM > chipset: > 00:00.0 Host bridge: Intel Corp. 82855PM Processor to I/O > Controller (rev 03) Thanks. AFAIK, there are essentially three "Centrino" chipsets Intel 855GM [1] Intel 855PM [2] Intel 855GME [3]. So 855PM based laptops seem to work, whereas 855GM based laptops apparently don't. So it would be logical to assume it is the difference between these two that causes the problems. Unfortunately I'm not sure whether that brings us any further as it seems that it is the integrated graphics stuff that makes the difference -- or is there more? Regards, Georg [1] http://www.intel.com/design/chipsets/mobile/855gm.htm?iid=dev_chips855fam+855gm& [2] http://www.intel.com/design/chipsets/mobile/855pm.htm?iid=dev_chips855fam+855pm& [3] http://www.intel.com/design/chipsets/mobile/855GME.htm?iid=dev_chips855fam+855gme& ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PROBLEM] 2.6.3-rc1: still no suspend/resume on Centrino notebook 2004-02-08 18:32 ` Georg C F Greve @ 2004-02-08 23:22 ` Matthias Hentges 2004-02-09 11:30 ` [PROBLEM] 2.6.3-rc1: still no suspend/resume on Centrino Georg C. F. Greve 0 siblings, 1 reply; 5+ messages in thread From: Matthias Hentges @ 2004-02-08 23:22 UTC (permalink / raw) To: Linux Kernel Am So, den 08.02.2004 schrieb Georg C F Greve um 19:32: > > The Thinkpad T40 and T41 at least; they suspend & resume properly, > > but there are still interrupt-losing problems when resuming, which > > is a totally separate issue. I believe they both use the 8255PM > > chipset: > > > 00:00.0 Host bridge: Intel Corp. 82855PM Processor to I/O > > Controller (rev 03) > > Thanks. > > AFAIK, there are essentially three "Centrino" chipsets > Intel 855GM [1] > Intel 855PM [2] > Intel 855GME [3]. > > So 855PM based laptops seem to work, whereas 855GM based laptops > apparently don't. So it would be logical to assume it is the > difference between these two that causes the problems. *cough* Well my laptop uses the 855PM chipset and it does *not* work. Suspend works but the machine won't wake up (drives power up but the screen stays blank and the machine is not pingable. PS: Yes, my mailer is kinda fscked ATM, sorry -- Matthias Hentges Cologne / Germany [www.hentges.net] -> PGP welcome, HTML tolerated ICQ: 97 26 97 4 -> No files, no URL's My OS: Debian Woody. Geek by Nature, Linux by Choice ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PROBLEM] 2.6.3-rc1: still no suspend/resume on Centrino 2004-02-08 23:22 ` Matthias Hentges @ 2004-02-09 11:30 ` Georg C. F. Greve 0 siblings, 0 replies; 5+ messages in thread From: Georg C. F. Greve @ 2004-02-09 11:30 UTC (permalink / raw) To: linux-kernel; +Cc: Matthias Hentges, acpi-devel > Well my laptop uses the 855PM chipset and it does *not* > work. Suspend works but the machine won't wake up (drives power up > but the screen stays blank and the machine is not pingable. Thanks for pointing that out, it sounds a lot like the problem description of the 855GM machines. So according to the data posted on the net/in the lists, the status of kernel 2.6.x advanced power management (suspend/resume) on Centrino notebooks depending on the chipset currently looks like Intel 855GM: no success story so far Intel 855PM: a few successes reported, definitely not true for all Intel 855GME: ??? (no data) Regards, Georg P.S. I'm curious: I know some Intel employees are working on the Linux ACPI code, is this merely tolerated or officially during paid time? Are you given any preferences what to work on or are you entirely free in your prioritizing? -- Georg C. F. Greve <greve@gnu.org> Free Software Foundation Europe (http://fsfeurope.org) Brave GNU World (http://brave-gnu-world.org) ^ permalink raw reply [flat|nested] 5+ messages in thread
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[not found] <c05m86$20g$1qsea.gmane.org>
2004-02-08 17:17 ` [PROBLEM] 2.6.3-rc1: still no suspend/resume on Centrino notebook Georg C F Greve
2004-02-08 17:46 ` Ari Pollak
2004-02-08 18:32 ` Georg C F Greve
2004-02-08 23:22 ` Matthias Hentges
2004-02-09 11:30 ` [PROBLEM] 2.6.3-rc1: still no suspend/resume on Centrino Georg C. F. Greve
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