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by Ollittm
Fri Jan 12, 2018 1:41 pm
Forum: Raspbian
Topic: Keyboard settings over Remote Desktop
Replies: 12
Views: 4032

Re: Keyboard settings over Remote Desktop

(X)RDP has the minor benefit of being much (much!) faster due to actually knowing about windows composition instead of essentially sending a video stream over local network. One part of that is that your keyboard is more tightly coupled with the RDP server hence configuration is needed. With RDP cop...
by Ollittm
Fri Oct 06, 2017 3:46 pm
Forum: Advanced users
Topic: Changing WiFi network
Replies: 4
Views: 647

Re: Changing WiFi network

Whether or not you have several access points defined, you're asked for the network key on raspian using that icon. Correct, but if you don't enter a key and select the "OK" button, it will connect using the psk for that network from wpa_supplicant.conf. Ok, tthat gets the job done in GUI. Is there...
by Ollittm
Fri Oct 06, 2017 2:57 pm
Forum: Linux Kernel
Topic: Wifi driver croaks
Replies: 1
Views: 5853

Wifi driver croaks

I'm using rpi-4.13.y kernel plus raspberrypi-updated firmware (without kernel update). Now Wifi connects fine on startup but we've got a couple of alternative wifi networks at work - If you connect to another one and give the correct network password, fine, maybe it works. If you give the WRONG one ...
by Ollittm
Fri Oct 06, 2017 1:38 pm
Forum: Advanced users
Topic: Changing WiFi network
Replies: 4
Views: 647

Re: Changing WiFi network

Whether or not you have several access points defined, you're asked for the network key on raspian using that icon.
by Ollittm
Fri Oct 06, 2017 9:51 am
Forum: Advanced users
Topic: Changing WiFi network
Replies: 4
Views: 647

Changing WiFi network

Simply put, how to? Yes, I know you can change WPA supplicant file and yes, it will automagically pick something. However, we have ourextranet and ourintranet wifi networks and sometimes you actually do want to switch between them. How to? You find about a million hits on editing WPA supplicant but ...
by Ollittm
Mon Sep 25, 2017 9:26 am
Forum: Linux Kernel
Topic: How to prevent kernel updates?
Replies: 13
Views: 8142

Re: How to prevent kernel updates?

You can run dpkg -L <package> to list the content of an installed package. Or, dpkg -S </path/to/file> to find which package a file belongs to. Thanks. Indeed the raspberrypi-bootloader package. I had at one point LEDs broken which is caused by out-of-date bootloader files. And the bluetooth issue ...
by Ollittm
Fri Sep 22, 2017 10:20 am
Forum: Linux Kernel
Topic: How to prevent kernel updates?
Replies: 13
Views: 8142

Re: How to prevent kernel updates?

I think I'll go with removing the raspberrypi-kernel for now. Thanks for the tip! Interesting idea about making fake package.. Can you actually make a kernel debian package with 'make deb-pkg' for RPi? By the way.. Is there a package containing the elf and fixup files from /boot? You can pull it fro...
by Ollittm
Thu Sep 21, 2017 4:00 pm
Forum: Linux Kernel
Topic: How to prevent kernel updates?
Replies: 13
Views: 8142

Re: How to prevent kernel updates?

ShiftPlusOne wrote:
Thu Sep 21, 2017 3:33 pm
The official kernel comes from the raspberrypi-kernel package, which you can just remove (before copying in your own kernel and modules).
Not a bad idea. Will the dist-upgrade still get a new one, thought?
by Ollittm
Thu Sep 21, 2017 3:00 pm
Forum: Linux Kernel
Topic: How to prevent kernel updates?
Replies: 13
Views: 8142

Re: How to prevent kernel updates?

Yeah, looking online that package trick comes up but you'd apparently have to compile the kernel as a package and install it with apt for it to work. Another suggestion was to rename the kernel and set kernel image name in config.txt but I'm not sure that works. At least if you don't have kernel7.im...
by Ollittm
Thu Sep 21, 2017 1:13 pm
Forum: Linux Kernel
Topic: How to prevent kernel updates?
Replies: 13
Views: 8142

Re: How to prevent kernel updates?

That tends to stop any updates at all.
by Ollittm
Thu Sep 21, 2017 12:31 pm
Forum: Linux Kernel
Topic: Use BFQ?
Replies: 14
Views: 7113

Re: Use BFQ?

It looks like BFQ + throttle with 4.9 works pretty bad so I went with 4.13 kernel + throttle only.
by Ollittm
Thu Sep 21, 2017 10:11 am
Forum: Linux Kernel
Topic: How to prevent kernel updates?
Replies: 13
Views: 8142

How to prevent kernel updates?

Now that I have my 4.13 kernel set up the way I want it and our baseline RPi image done, I don't want updates to overwrite the kernel with stock version..

How to prevent that automagically?
by Ollittm
Tue Sep 19, 2017 5:40 pm
Forum: Linux Kernel
Topic: Use BFQ?
Replies: 14
Views: 7113

Re: Use BFQ?

I'm using 4.13 from the Raspberry Pi github, everything seems to work on that. Not seen a single problem. Is there a reason you cannot use that? As I commented in the other thread, the problems were caused by "/lib/firmware" directory getting wiped out at some part from the RPi. Kernel installation...
by Ollittm
Tue Sep 19, 2017 5:34 pm
Forum: Advanced users
Topic: Which kernel?
Replies: 16
Views: 2183

Re: Which kernel?

I restored the firmware folder from another RPi, cloned 4.9.y, applied the bfq and throttling patches plus did compilation and installation. The result is fully working RPi. Yay.

Even the BFQ scheduler is working unlike with the 4.1x MQ version.
by Ollittm
Tue Sep 19, 2017 5:02 pm
Forum: Advanced users
Topic: Which kernel?
Replies: 16
Views: 2183

Re: Which kernel?

Not sure why you are seeing problems. I run a standard 4.13 and "it just works". You are ensuring all the modules are copied across? The modules need to match the kernel build. Clone a new tree. Follow the build instruction, don't make any changes to the Pi config. Put on SD card. Does that work? I...
by Ollittm
Tue Sep 19, 2017 4:01 pm
Forum: Advanced users
Topic: Which kernel?
Replies: 16
Views: 2183

Re: Which kernel?

I wonder if make bcm2709_defconfig actually does create valid "default config" for >4.9.y kernels. Also I wonder if I'm not supposed to patch in the couple of thousands of patches 4.9.y has that the newer kernel versions do not. bcm2709_defconfig does create a valid build, so I suspect that it is p...
by Ollittm
Tue Sep 19, 2017 3:15 pm
Forum: Advanced users
Topic: Which kernel?
Replies: 16
Views: 2183

Re: Which kernel?

A-ha! dmesg actually shows the brcmfmac croaks. Too bad I don't know how to fix it :-\ [ 2.772358] systemd[1]: Starting Remote File Systems (Pre). [ 2.975170] fuse init (API version 7.26) [ 3.006400] i2c /dev entries driver [ 3.252127] systemd-udevd[121]: starting version 215 [ 4.100458] EXT4-fs (mm...
by Ollittm
Tue Sep 19, 2017 2:23 pm
Forum: Advanced users
Topic: Which kernel?
Replies: 16
Views: 2183

Re: Which kernel?

With regards to uname, right now
2017-09-19-152015_1920x1080_scrot.png
2017-09-19-152015_1920x1080_scrot.png (41.34 KiB) Viewed 1940 times
by Ollittm
Tue Sep 19, 2017 2:04 pm
Forum: Advanced users
Topic: Which kernel?
Replies: 16
Views: 2183

Re: Which kernel?

Yes, that's the instructions I followed except I of course add -b <branchname> to get rpi-4.12.y or rpi-4.13.y branch instead of the rpi-4.9.y branch. It does look like that it's not working with 4.9.y kernel patched with BFQ and writeback throttling either. So perhaps the BFQ is killing wifi for s...
by Ollittm
Tue Sep 19, 2017 1:38 pm
Forum: Advanced users
Topic: Which kernel?
Replies: 16
Views: 2183

Re: Which kernel?

Looks like the kernels above 4.9.y are not really fully functional.. I had 4.12.y compiled and booting ok but I noticed bluetooth and wifi do not work, also the desktop menubar would freeze after a bit. Curious as jamesh has 4.13.0 running here and quite happily connecting to wifi. IIRC Either Open...
by Ollittm
Tue Sep 19, 2017 12:09 pm
Forum: Linux Kernel
Topic: Use BFQ?
Replies: 14
Views: 7113

Re: Use BFQ?

I decided to go back to 4.9.y kernel. Given that the 4.10 and above lag thousands of commits behind 4.9.y, they're not working quite properly. Wifi does not work and neither does bluetooth. Desktop is misbehaving.. I'm sure there are ways to get around it, probably you can just tell git somehow to p...
by Ollittm
Tue Sep 19, 2017 12:02 pm
Forum: Advanced users
Topic: Which kernel?
Replies: 16
Views: 2183

Re: Which kernel?

Looks like the kernels above 4.9.y are not really fully functional.. I had 4.12.y compiled and booting ok but I noticed bluetooth and wifi do not work, also the desktop menubar would freeze after a bit.

So better to use 4.9.y and patch whatever extra functionality you're after.
by Ollittm
Mon Sep 18, 2017 3:12 pm
Forum: Linux Kernel
Topic: Use BFQ?
Replies: 14
Views: 7113

Re: Use BFQ?

Looks like this was moved to "other". Not quite right as I'm actually using the raspian kernel from Git.
by Ollittm
Mon Sep 18, 2017 8:54 am
Forum: Linux Kernel
Topic: Use BFQ?
Replies: 14
Views: 7113

Re: Use BFQ?

AFAIK mmc driver currently does not support BFQ. Trying to boot with elevator=bfq resulted in kernel panic for me. cat /sys/block/mmcblk0/queue/scheduler [noop] deadline cfq As you can see above bfq is not available for mmcblk0 (sdcard) If you look at google results on getting BFQ to work, this is ...
by Ollittm
Mon Sep 18, 2017 8:51 am
Forum: Linux Kernel
Topic: Use BFQ?
Replies: 14
Views: 7113

Re: Use BFQ?

Right, well, I already noticed it doesn't work ;-) But good to know I was not doing anything wrong as such, it's just not supported. I'm not sure how much difference it would really do versus deadline anyways. The writeback throttling on the other hand makes a big difference although of course bench...

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