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election of mostly linux related tutorials howtos fixes news and more showing posts with label poulsbo show all posts showing posts with label poulsbo show all posts new open source poulsbo driver in 2 6 39 staging friday april 08 2011 it works pretty nicely though just as a framebuffer device so far a specialized xorg userspace driver for the new staging kernel driver is expected sometime soon it already supplies kms and can be used with the fbdev driver of xorg so next time you want to try a new kernel you can at least get into a working x without much ado and there will surely be at least a simple driver coming with new kernels now the first steps have been taken and of course all this is hopefully just the beginning 0 comments categories drivers kernel poulsbo xorg xbmc with vaapi on poulsbo intel gma500 or other vaapi systems saturday january 01 2011 it s not possible directly right now due to limitations of the existing gma 500 drivers iegd psb and probably other vaapi drivers but if you have mplayer vaapi running it s really easy because you can set up xbmc to use external players with xbmc 10 read more 2 comments categories poulsbo tips vaapi video backlight finally works generic poulsbo gma 500 fix via acpi video interface thursday july 08 2010 the trick is to go into drivers acpi video c and remove the part that disables the acpi handling if there is an intel opregion present the patch looks like this diff git a drivers acpi video c b drivers acpi video c index 60ea984 ad8fc2d 100644 a drivers acpi video c b drivers acpi video c 2394 9 2394 6 static int __init acpi_video_init void dmi_check_system video_dmi_table if intel_opregion_present return 0 return acpi_video_register you can compile the module by getting the sources of your running kernel cding into the acpi directory drivers acpi applying the acpi patch and then executing make c lib modules uname r build m pwd video ko then just sudo insmod video ko alright here s the more elaborate version by joey lee hopefully entering the kernel soon drivers acpi video c 17 include linux pci_ids h 1 2 files changed 17 insertions 1 deletions diff git a drivers acpi video c b drivers acpi video c index 9865d46 25a70e0 100644 a drivers acpi video c b drivers acpi video c 88 6 88 11 static int acpi_video_bus_add struct acpi_device device static int acpi_video_bus_remove struct acpi_device device int type static void acpi_video_bus_notify struct acpi_device device u32 event static const struct pci_device_id intel_drm_blacklist pci_device pci_vendor_id_intel pci_device_id_intel_sch_vga terminating entry static const struct acpi_device_id video_device_ids acpi_video_hid 0 0 2531 8 2536 11 static int __init intel_opregion_present void if defined config_drm_i915 defined config_drm_i915_module struct pci_dev dev null u32 address int i bool in_blacklist for_each_pci_dev dev in_blacklist 0 if dev class 8 pci_class_display_vga continue if dev vendor pci_vendor_id_intel 2540 7 2548 14 static int __init intel_opregion_present void pci_read_config_dword dev 0xfc address if address continue return 1 for i 0 intel_drm_blacklist i device 0 i if dev device intel_drm_blacklist i device in_blacklist 1 break if in_blacklist return 1 endif return 0 diff git a include linux pci_ids h b include linux pci_ids h index 3bedcc1 78858b1 100644 a include linux pci_ids h b include linux pci_ids h 2669 6 2669 7 define pci_device_id_intel_82443gx_0 0x71a0 define pci_device_id_intel_82443gx_2 0x71a2 define pci_device_id_intel_82372fb_1 0x7601 define pci_device_id_intel_sch_vga 0x8108 define pci_device_id_intel_sch_lpc 0x8119 define pci_device_id_intel_sch_ide 0x811a define pci_device_id_intel_82454gx 0x84c4 1 6 0 2 3 comments categories msi wind u110 poulsbo video backlight control on msi u110 netbook sunday june 27 2010 i ve managed to get the backlight working roughly as well all i needed to do was to load msi laptop with the parameter force 1 the problem is that there is so far very little scaling i can only set brightness to 0 very dark or 1 8 all very bright check for updates to get it working well with kde i ve contacted the driver developers and i hope we can make some progress on the drivers soon 4 comments categories msi wind u110 poulsbo power management video setting up vaapi hardware accelerated video decoding for ubuntu 10 04 example intel poulsbo gma 500 saturday june 26 2010 for the more detailed guide for ubuntu 9 10 which works much better for me including suspend to ram see here this is just a really really short basic howto for setting up the poulsbo x driver and vaapi video acceleration on ubuntu 10 04 i will post more details later 1 install the poulsbo driver sudo add apt repository ppa gma500 ppa sudo add apt repository ppa gma500 fix sudo apt get update sudo apt get install poulsbo driver 3d 2 set up the xorg conf section dri mode 0666 endsection section device identifier gma500 option accelmethod exa option dri on option migrationheuristic greedy option ignoreacpi yes driver psb endsection 3 reboot check it s all working vaapi 4 download the right mplayer version wget http www splitted desktop com gbeauchesne mplayer vaapi mplayer vaapi 20100114 i686 tar bz2 unp mplayer vaapi 5 install the necessary libraries you can remove mplayer then but it s the easiest method sudo apt get install mplayer libgtop2 7 6 and play mplayer vo vaapi va vaapi testfile avi if mplayer doesn t run because of missing libraries this command will show which libraries are missing ldd mplayer vaapi mplayer be quick before the instructions change due to new repositories libraries etc but don t everything to work flawlessly my system doesn t even go into suspend but crashes hence it can t come out of suspend either backlight control still doesn t work for me and i still have to do more testing on mplayer to see how smooth vaapi actually is theoretically installing vlc 1 1 0 with vaapi should be as easy as this sudo add apt repository ppa c korn vlc sudo apt get update sudo apt get install vlc but it didn t work out of the box for me and i didn t care about why if you have hints questions or yes comments please post in the comments 4 comments categories intel poulsbo vaapi video saving 33 or 3 watts of power with your netbook here a poulsbo system friday june 11 2010 i ve tried around a lot to see how much more power i can save on my system an easy step with lots of success was to configure the laptop tools to run automatically check etc defaults acpi support and looks for laptop_mode set it to true then you have to go to etc laptop mode and configure first laptop mode conf and then the additional settings in the conf d subdirectory this could already save me at least 1 watt of power with very very little hassle poulsbo i ve tried around a lot with my x system because it can draw a lot or little power depending on its settings e g if you reduce the backlight you can save at least 2 watt power unfortunately the backlight controls on my system don t work i m happy i ve managed to get the driver to run at all check my special article on the msi wind u110 for more on that hence at least for now i need to set my backlight to the level i want before booting linux but i did find out that disabling vsync saves quite a substantial amount of power i think about 0 5 watt most of the savings come from the cpu staying in idle longer on average then about 22 msecs instead of about 4 8 ms the catch is that with that setting enables xvideo and vaapi no longer work after standby browsing is still fine but probably no youtube either the whole system hangs when an application tries to use xv so i had to disable the setting again which actually was the step to put my netbook in a lower power mode than the carefully customized windows installation can manage too bad if i pass it or any options except debug to the psb module during load or load it myself during boot x or suspend won t work at all or properly or properly after standby in the xorg conf i have the standard settings for psb option accelmethod exa option dri on option migrationheuristic greedy option ignoreacpi yes ralink wifi another big one was the wifi adapter disabling it saves about 1 5 2 watts power but of course i wanted to be able to have it running and save energy as well i installed the newest driver from ralink s homepage the important step was to go into the os linux directory and edit the config mk file to enable has_native_wpa_supplicant_support y otherwise networkmanager would no longer work with it then i studied the documentation and found the command iwpriv ra0 set psmode fast_psp put my card into a low power mode which still keeps a good and rather fast connection better than in windows there this powersaving mode does not exist and the max_psp is unusable last hint a last additional hint is to kill knotify4 conclusion in the end my system runs with 5 7 watts in a full kde 4 3 2 x session with mplayer and vaapi i can now watch movies for at least 8 hours a great demonstration of how far linux has already come in saving power the only thing missing now is a working backlight control and a working xvideo without vsync would be great ok an ssd would be great too so let me know if you have one you no longer need or if you know how to fix the backlight control on a poulsbo system maybe i should try to compile the iegd driver for my system update i ve manged to get it all running including no_vsync and videoacceleration before and after suspend the trick is to do a double console switch after resume then vaapi still works even after the suspend and resume at least with xserver xorg video psb version 0 36 0 0ubuntu1ppa9 10 1 update2 i ve managed to get the backlight working roughly as well all i needed to do was to load msi laptop with the parameter force 1 the problem is that there is so far very little scaling i can only set brightness to 0 very dark or 1 8 all very bright update3 check out this article with more general advice including how ensure your battery lives long and prospers backlight is fixed by now i ve written a patch for the psb driver in testing at the ppa right now with recently kernels the power usage dropped down to 4 8 watts without wifi this means it lasts much longer in linux than in windows now 2 comments categories random access memory msi wind u110 poulsbo power management tips intel poulsbo frustration continues a year later monday june 07 2010 i m also frustrated i happily bought my netbook about exactly a year ago as many others in the hope that intel would provide a well working open source driver at least excluding 3d and vaapi then i managed to get it running at all and then including 3d and vaapi see http linux tipps blogspot com 2009 12 vaapi accelerated hd video on msi wind html and i was quite happy but i never managed to get several things to work reliable standby works once or twice if i haven t used 3d or vaapi backlight regulation does anyone know how to fix any of this now i have the crazy situation that in windows xp i can use standby and 3d but no hd and in linux i have better quality and vaapi hd video playback and 3d but no standby and i m frustrated it s such a nice netbook and performs so well otherwise it s really sad and frustrating if drivers keep you from really enjoying what you bought i don t even know if and how long i will be update my os it s already unclear if i would lose vaapi and or 3d acceleration when i upgrade to kubuntu 10 04 if x would still work at all but i have no idea how long drivers will still be developed or at least maintained if there is no open source version so please intel if not an open source driver then at least release open source specs update i ve actually managed to get standby working pretty reliably the computer returns back from standby with amazing speed too the trick was to update the bios to the newest version this fixes prior crashes during resume but the crashes in windows xp when i try to use dxva persist now the problem is that my wifi and sound drivers are still problematic after resume my wifi driver causes kernel panics and my audio driver simply stops working 0 comments categories drivers msi wind u110 poulsbo poulsbo is already working on ubuntu 10 04 wednesday may 12 2010 it s not a flawless support and currently without 3d but there is a poulsbo driver for ubuntu 10 04 the link helps for all ubuntu versions you can download the driver here 1 comments categories drivers msi wind u110 poulsbo ubuntu over 9 hours of video on battery with the msi wind u110 tuesday december 29 2009 after i ve managed to set up the video acceleration it was time to test if it s really as power efficient as claimed i just tried that with some sd and hd video hd video wouldn t play properly of course so it s silly to compare battery times but with sd video and vaapi i managed to get down to 6 1 watts 9 1 hours without vaapi it was around 6 3 6 5 watts 8 5 hours i used a few tricks to achieve this disabled wifi and bluetooth lowered the display brightness to minum still good though this has to be done before boot in 2 6 31 moved the system to an sdhc card while the power in standby is the same 5 7 watts both with only sdhc or only hard disk the active power is much lower with the sdhc only 0 5 2 watts instead of 3 5 watts used by powersave script to optimize the kernel settings for low power mode echo cpu echo 1 tee sys devices system cpu sched_smt_power_savings echo 1 tee sys devices system cpu cpu cpufreq ondemand ignore_nice_load echo 95 tee sys devices system cpu cpu cpufreq ondemand up_threshold echo 50 tee sys devices system cpu cpu0 cpufreq ondemand powersave_bias echo echo usb echo 2 tee sys module usbcore parameters autosuspend echo auto tee sys bus usb devices power level echo echo misc echo 1500 tee proc sys vm dirty_writeback_centisecs echo 0 tee sys block sdb queue rotational broken echo 10 tee sys module snd_hda_intel parameters power_save not better echo 1 tee sys module psb parameters disable_vsync killall q hald addon storage knotify4 networkmanager hciconfig hci0 down 0 comments categories netbooks poulsbo power management how to set up x and vaapi accelerated hd video on the msi wind u110 gma500 poulsbo and ubuntu karmic 9 10 saturday december 26 2009 the following guide is now slightly outdated as ubuntu 10 04 is out and new drivers are necessary also some of the repositories i originally used have disappeared if you use ubuntu 10 04 try following my much easier directions here instead the largest detriment to the ubuntu 9 10 driver is a complete lack of suspend to ram for me i will leave my guide for 9 10 online as reference though it seems to have been the first good description and i m happy about the major online media coverage i ve finally managed to get it running here is what i did first you need to get ubuntu 9 10 running with poulsbo the first steps 1 4 describe how to set up the driver for x the second part 5 10 describes how to set up vaapi an...
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