Re: [DIGImend-devel] New Monoprice Tablet using UC-Logic 5543:0781

[Jerry S. <jer...@gm...>]

On Mon, Aug 20, 2012 at 1:05 AM, Nikolai Kondrashov <sp...@gm...> wrote:
> On 08/20/2012 07:00 AM, Jerry Siebe wrote:
>>
>> I applied the 3.6 patch you posted earlier against 3.5.2.  It works as
>> expected, scrambled buttons and all. :)
>
>
> Very good, thank you. You were the last user needed to report success, so
> I'll submit the patch to the kernel now.
>
>
>> I didn't really get a chance to test it earlier; I spend too much time
>> building kernels.  Seems right now 3.6 is a no go for me.
>
>
> Sure. This happens sometimes with the latest kernels.
>
> Sincerely,
> Nick

I spent some time with the tablet today and found some bad behaviors.
This is using your 3.6 patch applied to against a 3.5.2 kernel (as
patched by Gentoo).

First, having the tablet plugged in when computer boots up left the
tablet in a bad state.  It would detect pen and frame buttons (unsure
about pressure, didn't think to check) but would not detect position
of the pen.  The LED on the tablet usually lights up with any
activity, including the pen being close to the surface.  It was not
lighting at all except when a button (including the tip) was pressed.
Cursor on screen also showed no motion.  I've found it in this state
after booting up twice.  Unplugging it and plugging it back in fixes
it.

>From dmesg:
[    5.339450] input: HA60S as
/devices/pci0000:00/0000:00:12.2/usb1/1-4/1-4.1/1-4.1:1.0/input/input5
[    5.339647] uclogic 0003:5543:0781.0004: input,hidraw3: USB HID
v1.10 Device [HA60S] on usb-0000:00:12.2-4.1/input0
[    5.340017] input: HA60S as
/devices/pci0000:00/0000:00:12.2/usb1/1-4/1-4.1/1-4.1:1.1/input/input6
[    5.340056] usb 1-4.1: link qh8-0e01/ffff88012b0e9d80 start 2 [1/2 us]
[    5.340223] uclogic 0003:5543:0781.0005: input,hidraw4: USB HID
v1.10 Keyboard [HA60S] on usb-0000:00:12.2-4.1/input1

Starting Xorg
[   82.341530] usb 1-4.1: link qh4-0e01/ffff88012b319880 start 3 [1/2 us]

Then when trying to use it I get this:
[ 5986.741810] usb 1-4.1: unlink qh4-0e01/ffff88012b319880 start 3 [1/2 us]
[ 5986.742146] ehci_hcd 0000:00:12.2: detected XactErr len 0/8 retry 1
...
[ 5986.748635] ehci_hcd 0000:00:12.2: detected XactErr len 0/8 retry 27
[ 5986.748770] usb 1-4.1: unlink qh8-0e01/ffff88012b0e9d80 start 2 [1/2 us]
[ 5986.749009] ehci_hcd 0000:00:12.2: detected XactErr len 0/8 retry 28
...
[ 5986.749759] ehci_hcd 0000:00:12.2: detected XactErr len 0/8 retry 31
[ 5986.750008] ehci_hcd 0000:00:12.2: devpath 4.1 ep0out 3strikes
[ 5986.750016] usb 1-4: clear tt buffer port 1, a5 ep0 t00080248
[ 5986.750072] ehci_hcd 0000:00:12.2: reused qh ffff88012b319880 schedule
[ 5986.750080] usb 1-4.1: link qh4-0e01/ffff88012b319880 start 3 [1/2 us]
[ 5986.750093] uclogic 0003:5543:0781.0004: can't reset device,
0000:00:12.2-4.1/input0, status -71
[ 5986.750509] ehci_hcd 0000:00:12.2: detected XactErr len 0/8 retry 1
...
and on and on.

Second bad behavior was during about twenty minutes of use. Three
times I got spurious lines while drawing. Twice the lines jumped to
the 0,0 corner, and once it jumped only vertically to y=0.  There is
nothing in dmesg at the times this happened.

I didn't encounter either of these problems in roughly 5 hours of use
prior using my hack in 3.5.0.  Tomorrow I'll try your patch against
3.5.0 as well as see what I can do to get running in a 3.6.0 kernel.

- Jerry