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by dom
Sat Jun 15, 2019 2:14 pm
Forum: General discussion
Topic: New Open GL Driver, Bug report thread
Replies: 98
Views: 43297

Re: New Open GL Driver, Bug report thread

I have a DSI-attached non-official display which works fine with vc4-kms-v3d when in normal landscape mode. However, if I switch to vc4-fkms-v3d I get no display at all. fkms means firmware drives the display. Only official display are supported by firmware. kms is the only option for non-official ...
by dom
Fri Jun 07, 2019 6:21 pm
Forum: Advanced users
Topic: Moving Linux kernel to 4.19
Replies: 232
Views: 63224

Re: Moving Linux kernel to 4.19

riavfbip wrote:
Fri Jun 07, 2019 2:02 pm
Would it be possible to enable in further updates to kernel 4.19 CAKE packet scheduler?
For feature requests create and issue here: https://github.com/raspberrypi/linux/issues
Including links or test results that show the benefits will help.
by dom
Fri Jun 07, 2019 12:25 pm
Forum: Advanced users
Topic: Moving Linux kernel to 4.19
Replies: 232
Views: 63224

Re: Moving Linux kernel to 4.19

*** Backing up modules 4.14.83v7-aufs
Are you using berryboot or some other custom kernel?
rpi-update is designed for updating the raspbian kernel. It is not designed for custom kernel builds.
by dom
Mon Jun 03, 2019 10:37 am
Forum: Advanced users
Topic: Moving Linux kernel to 4.19
Replies: 232
Views: 63224

Re: Moving Linux kernel to 4.19

Twell wrote:
Sun Jun 02, 2019 12:15 pm
In your opinion do I need to check something?
Nope. Minor kernel bumps rarely cause issues so you shouldn't expect a problem, but there are rare exceptions.
The major kernel bumps (e.g. 4.14->4.19) have a higher chance of issues, but they seem to have been resolved now.
by dom
Thu May 30, 2019 3:41 pm
Forum: Advanced users
Topic: Moving Linux kernel to 4.19
Replies: 232
Views: 63224

Re: Moving Linux kernel to 4.19

It had worked better on the 4.14 kernel, (not sure what version but one of the latest ones). Can you identify the exact update which caused this. See: https://github.com/Hexxeh/rpi-firmware/commits/master If you click on each commit the end of the url contains a git hash. Run sudo rpi-update <hash>...
by dom
Wed May 29, 2019 12:06 pm
Forum: Advanced users
Topic: Moving Linux kernel to 4.19
Replies: 232
Views: 63224

Re: Moving Linux kernel to 4.19

DarkPlatinum wrote:
Tue May 28, 2019 8:59 pm
Using fake KMS, 192mb split on RPi 3B+ chromium 72. Getting stuttering in 480p video (non fullscreen).
Are you saying this configuration has worked better with a previous kernel? If so, which one.
by dom
Tue May 21, 2019 11:14 am
Forum: Advanced users
Topic: Moving Linux kernel to 4.19
Replies: 232
Views: 63224

Re: Moving Linux kernel to 4.19

And it's this that seems to have made my HDMI sound intermittently choppy / strange sounding. This problem was persistent across reboots. If I can provide any further info that might be useful, please let me know. Can you create an issue here: https://github.com/raspberrypi/linux/issues where we ca...
by dom
Mon May 20, 2019 4:35 pm
Forum: Advanced users
Topic: Moving Linux kernel to 4.19
Replies: 232
Views: 63224

Re: Moving Linux kernel to 4.19

And yes, I can confirm 4.19 is now available in apt repo.
by dom
Mon May 20, 2019 4:19 pm
Forum: Advanced users
Topic: Moving Linux kernel to 4.19
Replies: 232
Views: 63224

Re: Moving Linux kernel to 4.19

Since today I am having issues with accessing i2c channel 0, which I fixed by rolling back to kernel 4.14, as suggested by Chimneyfactory (Thanks!) Can you create an issue here: https://github.com/raspberrypi/linux/issues and describe the minimum steps you need to do to see the problem with 4.19 vs...
by dom
Thu May 16, 2019 10:49 am
Forum: Beginners
Topic: NTSC 59.94Hz on HDMI
Replies: 22
Views: 7043

Re: NTSC 59.94Hz on HDMI

Dom also mentions that it could be added as a config.txt parameter, and then says that the firmware has been updated with this feature, but I can't figure it out (I even tried using hdmi_cvt to define a custom mode, but the framerate parameter only accepts whole numbers). The firmware updated comme...
by dom
Tue May 07, 2019 1:58 pm
Forum: Advanced users
Topic: Moving Linux kernel to 4.19
Replies: 232
Views: 63224

Re: Moving Linux kernel to 4.19

ncguk wrote:
Mon May 06, 2019 12:37 pm
As of 1.35pm, 6 May 2019, "sudo rpi-update" gives the error "Invalid git hash specified". Tested on RPi Zero W and RPi3 running stock Raspbian.
It's working here. May have been a temporary github issue? Does it still fail?
by dom
Fri May 03, 2019 11:00 am
Forum: Advanced users
Topic: New experimental GL driver configuration
Replies: 24
Views: 22051

Re: New experimental GL driver configuration

When using dtoverlay=vc4-fkms-v3d, how could I change the dispmanx layer of an opengl application (eglfs, no X)? I'd like to have a transparent eglfs application on top of omxplayer. Why not move the omxplayer layer. ``--layer n`` I believe gl framebuffer is at layer -127, so ``--layer 200`` would ...
by dom
Thu May 02, 2019 11:55 am
Forum: Advanced users
Topic: Moving Linux kernel to 4.19
Replies: 232
Views: 63224

Re: Moving Linux kernel to 4.19

@cjan Can you test again after an rpi-update?
by dom
Wed May 01, 2019 1:53 pm
Forum: Advanced users
Topic: Moving Linux kernel to 4.19
Replies: 232
Views: 63224

Re: Moving Linux kernel to 4.19

update to .37, no audio device found? Are you talking about the built in audio (hdmi/headphone socket)? (rather than USB/I2S). [email protected]:~ $ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: ALSA [bcm2835 ALSA], device 0: bcm2835 ALSA [bcm2835 ALSA] Subdevices: 7/7 Subdevice #0: subdevic...
by dom
Thu Apr 25, 2019 7:22 pm
Forum: Advanced users
Topic: Moving Linux kernel to 4.19
Replies: 232
Views: 63224

Re: Moving Linux kernel to 4.19

I wonder what is penalty? meaning what sort of size of memory we are talking about I believe it's 8 bytes per 4K page of the system is lost up front, so 2MB less memory on boot. (when first introduced we also had CGROUP_MEM_RES_CTLR enabled as Epiphany made use of that, and that adds an extra 20 by...
by dom
Thu Apr 25, 2019 2:21 pm
Forum: Advanced users
Topic: Moving Linux kernel to 4.19
Replies: 232
Views: 63224

Re: Moving Linux kernel to 4.19

cgroups is back in with latest rpi-update kernel and hopefully memory leak is still fixed.
by dom
Thu Apr 18, 2019 10:24 am
Forum: Advanced users
Topic: New experimental GL driver configuration
Replies: 24
Views: 22051

Re: New experimental GL driver configuration

kolsi wrote:
Thu Apr 18, 2019 8:37 am
I am not sure whether this is the driver issue or rather Xorg issue, but after enabling KMS fake driver (dtoverlay=vc4-fkms-v3d), the Xorg startup is much slower.
Can you confirm this occurs on a fresh raspbian install?
Assuming it does, reporting here may be best.
by dom
Tue Apr 09, 2019 7:56 pm
Forum: Advanced users
Topic: Moving Linux kernel to 4.19
Replies: 232
Views: 63224

Re: Moving Linux kernel to 4.19

kozman wrote:
Tue Apr 09, 2019 6:54 pm
Not as of yet. I know there was some cgroup work done in the 4.19.34 kernel so it obviously had a negative impact in your case.
cgroups was disabled to avoid the memory leak (reported here).
We are waiting for a fix for the memory leak before we can enable cgroups again.
by dom
Thu Mar 28, 2019 2:44 pm
Forum: Advanced users
Topic: Moving Linux kernel to 4.19
Replies: 232
Views: 63224

Re: Moving Linux kernel to 4.19

Lack of cgroups is the case. "Edit your command line boot file to enable and mount memory cgroups. This allows AWS IoT Greengrass to set the memory limit for Lambda functions. Without this, the Greengrass daemon is unable to run." - Source: https://docs.aws.amazon.com/greengrass/latest/developergui...
by dom
Wed Mar 27, 2019 7:00 pm
Forum: Advanced users
Topic: Moving Linux kernel to 4.19
Replies: 232
Views: 63224

Re: Moving Linux kernel to 4.19

lems wrote:
Wed Mar 27, 2019 5:55 pm
Seems to work fine now. The rsnapshot/rsync command that failed previously completed succesfully now running the latest rpi-kernel update (4.19.30; 00bb2894c0a4349464c19ba62f62b8d9e17a1a9e).
Thanks for confirming.
by dom
Wed Mar 27, 2019 3:33 pm
Forum: Advanced users
Topic: Moving Linux kernel to 4.19
Replies: 232
Views: 63224

Re: Moving Linux kernel to 4.19

teemu.niiranen wrote:
Wed Mar 27, 2019 2:59 pm
For AWS Greengrass 4.19 is a no go. No way to setup max memory for local Lambda functions?
I think you'll have to explain more precisely. Are you referring to the lack of cgroups, the slab/inode leak or some other change in 4.19.
by dom
Tue Mar 26, 2019 4:25 pm
Forum: Advanced users
Topic: Moving Linux kernel to 4.19
Replies: 232
Views: 63224

Re: Moving Linux kernel to 4.19

Mostly a scheme for isolating resource usage for collections of processes.
Mostly used for virtualisation, or containerisation (like docker).

I don't think 99% of users will notice its absence, but this is what the test builds are for.
If things stop working due to its absence, then report it here.
by dom
Tue Mar 26, 2019 2:22 pm
Forum: Advanced users
Topic: Moving Linux kernel to 4.19
Replies: 232
Views: 63224

Re: Moving Linux kernel to 4.19

Potential workaround for the inode slab leak is now available in rpi-update kernel.
Affected users, please update and report back.

The workaround disables memory and IO cgroups which appears to be the cause of the leaks.
by dom
Tue Mar 12, 2019 12:19 pm
Forum: Advanced users
Topic: Moving Linux kernel to 4.19
Replies: 232
Views: 63224

Re: Moving Linux kernel to 4.19

dariuszb wrote:
Fri Feb 22, 2019 8:52 am
With external disk attached when upgraded to 4.19 e4defrag commands kills the system:
Possibly this issue: https://github.com/raspberrypi/linux/issues/2829
It's an upstream issue and solutions are being discussed there.
We'll pick up any fixes when they are decided on.

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