[Mageia-dev] Real Time Kernel version

Mon Sep 17 15:10:55 CEST 2012

Hi,
+
+On Mon, Sep 17, 2012 at 9:04 PM, Thomas Backlund <tmb at mageia.org> wrote:
+> Jehan Pagès skrev 17.9.2012 13:52:
+>>>
+>>> Well, Mga2 will get upgraded to 3.4 longterm kernel soon, so maybe
+>>> we should look into backporting the Intuos 5 tablet support to
+>>> 3.4 series... then I could add it to the -rt kernel too.
+>>
+>>
+>> That would be awesome. I checked the diff of the 3.5 kernel, and
+>> grep-ed for intuos 5 code, there does not seem to be *that* much.
+>> If ever you do it, a big big thank you!
+>>
+>
+> Hm, I just checked...
+>
+> Intuos 5 tablet support went in just after 3.3-rc6, so
+> the release kernel 3.3.6 and the update 3.3.8 should work.
+>
+> So I need more info... have you tested with that kernel ?
+>
+> (not the -rt as that is at 3.2*)
+>
+
+>From what I see from the commits, they happened 2012-04-04 indeed, but
+the merge commit by Linus which says that Intuos 5 is supported is the
+05/24, which is *after* 3.4 release (05/20):
+http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Fstable%2Flinux-stable.git&a=search&h=HEAD&st=commit&s=intuos5&sr=1
+
+Also if you check the patch of 3.5, it contains all the new code for
+Intuos 5 (could not find any Intuos related code in other 3.3.6/8 or
+3.4 patches): http://www.kernel.org/pub/linux/kernel/v3.0/patch-3.5.bz2
+
+Finally for the record, I did test with the
+kernel-desktop-3.3.8-2.mga2 (the current last kernel for Mageia 2
+stable). Absolutely no support (I plug, and I can move whatever I want
+with my stylus, nothing happens). This is why I started searching for
+the support of intuos 5 on the web.
+I also tested with the kernel-rt-3.4.9-rt17.1.mga3 from Cauldron.
+Definitely no support either.
+
+Finally I tested with the kernel-desktop-3.5.3-3.mga3 from Cauldron.
+Works immediately. I plug, I move the stylus and it makes the mouse
+pointer move. Pression works fine in Gimp, buttons as well, etc.
+
+I guess that even though the commits were there before 3.4 release
+(when you search the web, some people thought it would be integrated
+in 3.4 indeed), they did not actually get integrated into a release
+before 3.5. Maybe? I don't really know how the kernel development is
+organized exactly, but I guess some commits may be retained a little
+longer out of releases?
+
+> If it does not work, I need more info such as exact model and id of the
+> tablet, lspcidrake -v output and so on...
+> Anything in the logs or dmesg ?
+>
+
+Do you still need these info?
+Anyway, I can give them (that's an Intuos 5 M).
+
+dmesg returns:
+---------------------------
+[27505.203683] usb 1-1.2: new full-speed USB device number 5 using ehci_hcd
+[27505.283131] usb 1-1.2: New USB device found, idVendor=056a, idProduct=0027
+[27505.283141] usb 1-1.2: New USB device strings: Mfr=1, Product=2,
+SerialNumber=0
+[27505.283146] usb 1-1.2: Product: Intuos5 touch M
+[27505.283150] usb 1-1.2: Manufacturer: Wacom Co.,Ltd.
+[27505.285266] input: Wacom Intuos5 touch M Pen as
+/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/input/input26
+[27505.291802] input: Wacom Intuos5 touch M Finger as
+/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.1/input/input27
+----------------------------
+
+lsusb:
+-----------------------------
+Bus 001 Device 005: ID 056a:0027 Wacom Co., Ltd
+------------------------------
+
+lspcidrake -v does not return anything related to the wacom tablet,
+nor any usb device for that matter. The --help says the USB devices
+source is /proc/bus/usb/devices but there is nothing at this path. I
+guess that explains this, though I did not investigate more as I never
+used this command anyway.
+
+Note that these outputs have been done from my working 3.5.3 kernel.
+Maybe you wanted to get them run from the 3.4 or the 3.3.8?
+
+Anyway as I said above, it really looks like the support is only from
+3.5, so that's normal that it does not work with earlier kernels.
+Thanks for looking into this!
+
+Jehan
+
+> --
+>
+> Thomas
+>
+