weston | Reference compositor for Wayland | Video Utils library
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kandi X-RAY | weston Summary
Reference compositor for Wayland (mirror)
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QUESTION
I am trying to get my BeagleBone Black to post to my monitor, to be able to use it as a stand-alone PC.
This was possible with the image that the BeagleBone shipped with.
I have just installed a new image on my BeagleBone Black Rev C.
The new image is AM3358 Debian 10.3 2020-04-06 4GB SD IoT.
I am able to SSH to it using PuTTY, and this way I have succesfully performed some actions with it, like using wget to download files from Google Drive etc.
So it seems like the board is working well, and that the HDMI output is disabled somewhere.
I have copied the contents of the uEnv.txt-file below, to show that the lines regarding disabling of video are commented out:
...ANSWER
Answered 2022-Jan-16 at 20:12I solved the problem, following a solution found here.
The solution was to run a kernel update:
QUESTION
Thank you for watching this.
I'm having difficulties with my BBB on CAN communication like for months... I'd be really pleased if you could give me just a little help!
I'm working on CAN protocol between BBB and another CAN device. The another device is confirmed to be working alright with CAN. I'm using my BBB with Cloud9 platform on windows laptop, and on the another device, it's using CAN0.
I have set the 'config-pin' on BBB like below using CAN1, and I tried 'cansend' utility. The bitratre value on the another device is also set to be equal.
...ANSWER
Answered 2021-Aug-07 at 03:47Some help on can or socketCAN will be found here for the BBB or other family board:
QUESTION
Am working on a custom board - has no removable storage (sd) and only one UART. I need to transfer files on the the QSPI storage using barebox bootloader.
I am trying to use DFU to transfer various files to write to QSPI
Device tree has the follow among other things
...ANSWER
Answered 2021-Sep-08 at 07:09A regression matching your problem was recently reported as being caused by
697f53a90224 ("usb: gadget: dfu: Wrap fs operation in workqueue")
There has been a first fix here:
https://lore.barebox.org/barebox/20210830144835.27458-1-jmaselbas@kalray.eu
Try and see if that fixes your issue.
It's unfortunate the regression slipped through, but most users seem to either use fastboot
or DFU with the multigadget functionality (usbgadget -D
command instead of dfu
command). I'd suggest you do likewise with a new project. fastboot has special support for UBI (u
) flag, which allows it to call ubiformat
transparently on a volume when updating and it can reeexport barebox_update
handlers, so you could just update with e.g.:
QUESTION
I am trying to program the STM32F401 flash on our board in DFU mode. I am using the dfu-util tool in my linux computer.For my project requirements the BOOT 0 pin is always kept high throughout the process.
I am using the following command to flash and jump to application code.
...ANSWER
Answered 2021-Aug-30 at 08:25I found the issue. I had to uncomment the define USER_VECT_TAB_ADDRESS
in the system_stm32f4xx.c file.
Basically what was happening was that bootloader was looking for a loadable vector address from the flash application. With the USER_VECT_TAB_ADDRESS
commented the pointer to the vector address kept pointing to the bootloader vector table effectively crashing the flash application resetting the controller. With the BOOT 0 pin high it kept loading into bootloader with each reset.
More information about this is available in this similar question: STM32G474 bootloader exit
QUESTION
I am working on a regex problem from coursera and it has provided a data file of names followed by ": grade". We have to find and return the names of all the students who have a B. What I did was use this regex code
...ANSWER
Answered 2021-Aug-05 at 14:04You can use positive lookahead: [\w ]+(?=: B)
See Demo
QUESTION
I am having some issues with a regular expression I hope you can help me with. I have a dataset that looks like this:
...ANSWER
Answered 2021-May-25 at 16:06You could use -(\w)
as your pattern which is a dash followed by a letter. Capture the letter as group 1, then replace that with a space and the Capital letter of the captured group 1. ie \U\1
. Note that to do this, we escape the \
hence have 2 backslash in the R code
QUESTION
I have a matrix, saved as a file (no extension) looking like this:
...ANSWER
Answered 2021-Mar-08 at 11:59Try this option :
- Read the file with
readLines
removing the first line. ([-1]
). - Split values on whitespace and create 1 X 6 matrix from every combination of two rows.
- Combine them together in one matrix with
do.call(rbind, ..)
.
QUESTION
Description:
- For a data set, I would like to apply
SVM
by using radial basis function (RBF
) kernel withWeston, Watkins native multi-class
. - The rbf kernel parameter
sigma
must be tuned and I want to usek-folds cross validation
to do this. I consider a fixedC
.
Solution:
It seems that I can use the nice package mlr to do this! So, to tune the rbf
parameter sigma
using CV
for MSVM
classification, (using this tutorial)
ANSWER
Answered 2021-Mar-04 at 10:54You have to set the fixed parameters within the learner. Therefore you first have to create it:
QUESTION
I got a bit stuck debugging a yocto build problem. I encountered this while updating from yocto warrior (2.7) to yocto dunfell (3.1) The build fails during the building of the rootfs, all steps before seem to work:
...ANSWER
Answered 2021-Feb-17 at 07:55I found it out myself (interesting how asking questions helps you thinking...):
The issue was in the systemd
recipe itself and related to the systemd-compat-units
recipe. I was able to fix it with this in my layer's recipes-core/systemd/systemd_%.bbappend
:
QUESTION
I need to keep box-sizing:border-box for most of then page but need to remove it in the footer. The following isn't quite working
...ANSWER
Answered 2021-Feb-08 at 23:29You didn't have a closing bracket after your first selector block, and in the selector block where you're reseting your box-sizing property, you named the class .footContainer
instead of .footerContainer
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