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by Mikael
Sat Nov 27, 2021 6:28 pm
Forum: Advanced users
Topic: Moving Linux Kernel to 5.15
Replies: 92
Views: 6401

Re: Moving Linux Kernel to 5.15

It took a while after applying power, but the system eventually came up on the network and I could SSH into it. This was with the KMS driver. Full output of dmesg below: [ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd083] [ 0.000000] Linux version 5.15.0 (vudiq@globox) (aarch64-libre...
by Mikael
Sat Nov 27, 2021 4:51 pm
Forum: Advanced users
Topic: Moving Linux Kernel to 5.15
Replies: 92
Views: 6401

Re: Moving Linux Kernel to 5.15

Andresayang wrote:
Sat Nov 27, 2021 10:41 am
On my system, with kms, system boot, but no sceen. It fails to shutdown/reboot I must switch off to reboot.
(With kms, I have access to device via ssh)
Thanks for testing! Is this also with a rev 1.4 board?

EDIT: Also, what display are you using?
by Mikael
Sat Nov 27, 2021 9:43 am
Forum: Advanced users
Topic: Moving Linux Kernel to 5.15
Replies: 92
Views: 6401

Re: Moving Linux Kernel to 5.15

dom wrote:
Fri Nov 26, 2021 1:01 pm
You could try switching from kms to fkms as a temporary measure.
Just a quick update: With fkms the system boots correctly every time, with working USB. Changing back to kms and it again fails to boot 100% of the time.
by Mikael
Fri Nov 26, 2021 10:17 am
Forum: Advanced users
Topic: Moving Linux Kernel to 5.15
Replies: 92
Views: 6401

Re: Moving Linux Kernel to 5.15

I am having some HDMI issues lately, that are driving me nuts. I am still collecting info, but any pointers would be helpful. This concerns, as far as I can tell, Lakka and not Raspberry Pi OS, but I believe it may be kernel related. I have the following hardware: Older 21.5" Samsung 1080p LCD ...
by Mikael
Tue Nov 09, 2021 7:30 am
Forum: Raspberry Pi OS
Topic: STICKY: Bullseye - Comments and bug reports thread.
Replies: 457
Views: 24301

Re: Bullseye - Comments and bug reports thread.

glamor (which allows hw gl acceleration) is disabled on pi0-3. Have a look in /usr/lib/systemd/scripts/glamor_test.sh. If you replace the outer if clause with "if false; then" it will re-enable glamor. glamor on pi0-3 actually slows done composition, hence the disable, but unfortunately m...
by Mikael
Mon Nov 08, 2021 7:51 pm
Forum: Raspberry Pi OS
Topic: STICKY: Bullseye - Comments and bug reports thread.
Replies: 457
Views: 24301

Re: Bullseye - Comments and bug reports thread.

Using a completely fresh and fully updated installation of Bullseye results in lack of hardware accelerated graphics on a Zero 2. I've seen several users on Reddit reporting the same issue. Even just clicking the desktop and creating a selection rectangle covering most of the screen is very slow. A ...
by Mikael
Mon Nov 08, 2021 1:31 pm
Forum: Raspberry Pi OS
Topic: STICKY: Bullseye - Comments and bug reports thread.
Replies: 457
Views: 24301

Re: Bullseye - Comments and bug reports thread.

... By the way, which Mesa version are you using for this release? pi@rpi-b64:~ $ apt list --installed | grep mesa WARNING: apt does not have a stable CLI interface. Use with caution in scripts. libegl-mesa0/stable,now 20.3.5-1+rpt3+rpi1 arm64 [installed,automatic] libgl1-mesa-dri/stable,now 20.3.5...
by Mikael
Mon Nov 08, 2021 12:30 pm
Forum: Raspberry Pi OS
Topic: STICKY: Bullseye - Comments and bug reports thread.
Replies: 457
Views: 24301

Re: Bullseye - Comments and bug reports thread.

Nice! I will start testing this later tonight. By the way, which Mesa version are you using for this release?
by Mikael
Wed Nov 03, 2021 10:26 pm
Forum: General discussion
Topic: The Raspberry Pi Zero 2 W Thread
Replies: 378
Views: 18953

Re: The Raspberry Pi Zero 2 W Thread

Feeling a bit noobish now, but I’ve got to ask: I just got my Zero 2 and got Raspberry Pi OS 32-bit running on it just before I went to bed. Updated it via the wizard that comes up on first boot and it’s now running kernel 5.10.63. The thing is, when I run glxinfo, it says it’s using llvmpipe, i.e....
by Mikael
Tue Nov 02, 2021 10:01 pm
Forum: General discussion
Topic: The Raspberry Pi Zero 2 W Thread
Replies: 378
Views: 18953

Re: The Raspberry Pi Zero 2 W Thread

Feeling a bit noobish now, but I’ve got to ask: I just got my Zero 2 and got Raspberry Pi OS 32-bit running on it just before I went to bed. Updated it via the wizard that comes up on first boot and it’s now running kernel 5.10.63. The thing is, when I run glxinfo, it says it’s using llvmpipe, i.e. ...
by Mikael
Tue Jun 15, 2021 9:52 pm
Forum: Troubleshooting
Topic: 2560x1440 monitor defaulting to 1280x768 on Pi OS Lite
Replies: 3
Views: 228

Re: 2560x1440 monitor defaulting to 1280x768 on Pi OS Lite

The suggested solution worked out nicely and the resolution was set to 2560x1440. 8-)
by Mikael
Tue Jun 15, 2021 10:04 am
Forum: Troubleshooting
Topic: 2560x1440 monitor defaulting to 1280x768 on Pi OS Lite
Replies: 3
Views: 228

Re: 2560x1440 monitor defaulting to 1280x768 on Pi OS Lite

Thanks for the detailed answer! I will test this suggestion tonight.
by Mikael
Tue Jun 15, 2021 8:05 am
Forum: Troubleshooting
Topic: 2560x1440 monitor defaulting to 1280x768 on Pi OS Lite
Replies: 3
Views: 228

2560x1440 monitor defaulting to 1280x768 on Pi OS Lite

Hi everyone! I just bought an Asus PA278QV (27" 2560x1440) monitor and I've connected my Pi 4 to the monitor's HDMI input. On a fully updated Pi OS Lite installation, it will default to 1280x768 resolution. If I try Pi OS desktop, it will default to 2560x1440 as expected. I've included the outp...
by Mikael
Fri Jan 29, 2021 1:18 pm
Forum: Advanced users
Topic: Moving Linux Kernel to 5.10
Replies: 641
Views: 124087

Re: Moving Linux Kernel to 5.10

As titron said. 5.10 is an LTS kernel, and one we will be moving to for our Raspberry Pi OS releases very soon - think days, not weeks or months. It's unlikely that we'll change the RPiOS kernel again until the next LTS - it's the best way to get bug fixes. If you are planning on distributing your ...
by Mikael
Sat Apr 04, 2020 7:44 pm
Forum: Advanced users
Topic: Moving Linux Kernel to 5.4
Replies: 474
Views: 116681

Re: Moving Linux Kernel to 5.4

Frame submission seems to take a pretty long time... Example from running an emulated SNES game: Framerate with no vsync: 115 FPS (i.e. ~8.7 ms to render a frame) With double buffering active, we need to render the frame and submit it to the GPU early enough for it to be able to be output to the dis...
by Mikael
Sat Apr 04, 2020 3:28 pm
Forum: Advanced users
Topic: Moving Linux Kernel to 5.4
Replies: 474
Views: 116681

Re: Moving Linux Kernel to 5.4

Vsync issues in RetroPie and RetroArch appear to be solved. See short write-up here:

https://retropie.org.uk/forum/topic/253 ... 6011048453

Will continue testing.
by Mikael
Fri Apr 03, 2020 11:28 am
Forum: Advanced users
Topic: Moving Linux Kernel to 5.4
Replies: 474
Views: 116681

Re: Moving Linux Kernel to 5.4

I will be testing this over the weekend. I'm interested in seeing if this solves the long standing vsync related (?) issues seen with RetroPie/RetroArch: Intermittent halved framerate (30 FPS) in EmulationStation. Seems to be timing dependent in some way, so occurs at 1920x1080 but couldn't reproduc...
by Mikael
Thu Dec 19, 2019 11:48 am
Forum: Raspberry Pi OS
Topic: Mesa 19.2.0-rc1 available for testing
Replies: 23
Views: 6765

Re: Mesa 19.2.0-rc1 available for testing

Is there any (relatively) easy way to test 19.3 before it goes into stable?
by Mikael
Thu Nov 21, 2019 12:21 pm
Forum: Advanced users
Topic: Did temperatures just improve even further?
Replies: 1
Views: 509

Did temperatures just improve even further?

I just upgraded the firmware to 4.19.84. Compared to my previous testing (using Flirc case), my Pi 4 4GB seems to run noticeably cooler. Both tests done with latest released bootloader, so that shouldn't account for the difference. Before update (sorry don't remember version, but ~1-2 weeks since pr...
by Mikael
Thu Sep 19, 2019 8:57 pm
Forum: Advanced users
Topic: Raspberry Pi4 EEPROM update package - beta
Replies: 62
Views: 28242

Re: Raspberry Pi4 EEPROM update package - beta

timg236 wrote:
Thu Sep 19, 2019 8:51 am
Yep, 2019-09-10 with the SDRAM power savings is now the default version and a critical update.
I don't have a power meter to measure the difference. Can you give us an estimate on how much this lowers the power consumption?
by Mikael
Mon Sep 09, 2019 12:30 pm
Forum: Troubleshooting
Topic: VLI firmware v2.0 - powersaving features enabled
Replies: 117
Views: 47272

Re: VLI firmware v2.0 - powersaving features enabled

Flashed and tested for temperature changes. Idle temps approximately 3C cooler with official case and top off and around 5C cooler with the top on. In absolutes:

Without top: 58C idle
With top: 67C idle

Ambient: ~22C

No issues so far, but haven't really done much.
by Mikael
Thu Aug 29, 2019 11:24 am
Forum: General discussion
Topic: Raspberry Pi 4 overheat : why not underclocking a little ?
Replies: 27
Views: 25568

Re: Raspberry Pi 4 overheat : why not underclocking a little ?

My guess is that the Cortex-A72 cores generate only a very small amount of the heat at idle. Therefore, trying to underclock and undervolt them further will have very limited effect. It's likely that any meaningful idle power consumption reductions will need to come from the RPF in the form of firmw...
by Mikael
Sun Aug 25, 2019 7:35 pm
Forum: Troubleshooting
Topic: RPI 4 - broken twice
Replies: 21
Views: 2498

Re: RPI 4 - broken twice

You're right, of course. Those Fs should have been Cs. And I know 55C isn't an issue, but the Flirc case was quite warm. Probably OK, but warmer than I was comfortable with. Since the whole point of the Flirc case is to act as a heatsink, it’s literally supposed to get hot. The hotter it gets, the ...
by Mikael
Sat Aug 10, 2019 1:17 pm
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 947
Views: 223871

Re: Raspberry Pi 4 Thread - general discussion

In the UK, all four CPU cores maxed out raised the temp from 54C at idle to 68C after about ten minutes. That's with NO fan! With a full desktop running and a few web browser tabs. Heavy use of NEON will make it hotter (see the cpuburn stress test). My Pi 4 runs at around 60C idle on the Raspbian d...
by Mikael
Thu Jul 18, 2019 7:41 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 617
Views: 410970

Re: Raspberry Pi 4 temperature

Somebody has done a neat review/comparison on the newly released ice tower cooler linked earlier in the thread https://www.youtube.com/watch?v=RyUXC3886Ic So, looks cool but is completely unnecessary, as expected. While the Pi 4 gets pretty hot, the thermal load is still very low (usually less than...

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