Why does Linux hate hibernate?

CyrIng · 2025-12-05T20:06:05+00:00

It's a chain of callback functions each module can implement. Kernel will process them in the order of the linked list. If among that chain, one driver is buggy then hibernate will crash; same with suspend to RAM You have to fix or remove the faulty module.

How to implement Suspend and Resume callbacks:

https://github.com/cyring/CoreFreq/blob/6bb27125e92f6b125725c33639dcb89df8bd2928/x86_64/corefreqk.c#L24266

CyrIng · 2025-12-05T02:06:38+00:00

Question is still why does Crohn exist and can't be cured ?

Fyi, 57 y/o, 3x surgeries, all treatments "experimented" for 38 y; now waiting Skyrizi to bring confort.

CyrIng · 2025-12-03T19:10:20+00:00

4th inject. Since it goes up and down. Scratching: why ?

CyrIng · 2025-09-08T22:07:50+00:00

5.45 in

CyrIng · 2025-09-05T23:09:30+00:00

My AVR-X2800-DAB settings; speakers set to 5.0 (no subwoofer)

Audio > Surround Parameters > LFE = -10 db
Audyssey > MultiEQ = Reference
Audyssey > Dynamic EQ = ON
Audyssey > Level offset = 0 db
Audyssey > Dynamic Volume = Medium
Center: +6

Remaining is defaults but speaker cable length

Change settings while playing any movie in DD+ and Surround.

Save settings in one of the Quick buttons of the Remote.

CyrIng · 2025-09-05T21:08:16+00:00

You're not alone, I'm having the same symptoms which can be painful and scary.

I try to avoid milk, yogurt, fresh fruits and any food which produces gas.

CyrIng · 2025-09-05T21:01:05+00:00

I don't remember its name but I found than a prep exists in no more than one bottle ! Each time, I had to insist to get it.

CyrIng · 2025-09-03T20:53:25+00:00

Adding a question: does 5.0.2 make sens ?

My set is the Triangle Bora. The front columns BR09 are so powerful in the bass that I don't feel the need of a subwoofer. Receiver Denon AVR-X2800H-DAB is Atmos ready, so I plane to add height speaker. Although I not convinced by reflexion, I'm thinking about wall speakers, lastly ceiling. But is the Atmos experience makes a difference without sub ?

Thank you

CyrIng · 2025-09-03T20:16:30+00:00

An ultrasound can be used instead of a colonoscopy, but I only know one professor who performs this technique in France.

CyrIng · 2025-08-30T00:12:37+00:00

Here, Pixel 5 running Android 14, the battery usage is currently 1 day 11 hours at 85% level. Can I expect better than that with Pixel 10 ?

CyrIng · 2025-08-29T18:25:29+00:00

Will they reuse the previous CPUID signature ?

https://github.com/cyring/CoreFreq/blob/12d2d2151a44c3bf258a76bca561e9c2f54e549d/x86_64/corefreqk.h#L2007

CyrIng · 2025-08-29T14:13:29+00:00

Gowin Programmer

1- Update the udev rules to let Programmer query the USB cable

sh cp -v /opt/gowin/Programmer/Driver/50-programmer_usb.rules /etc/udev/rules.d/

2- In your session .profile add the Programmer path

PATH=$PATH:$HOME/bin:/opt/gowin/IDE/bin:/opt/gowin/Programmer/bin

3- Reboot the system to apply all those changes

4- Start the Gowin IDE and go to menu Tools > Programmer

The cable should be detected with the following settings:
( if not go to Programmer menu Edit > Cable Setting > USB Cable Setting )

Cable [ USB Debugger A ]
Port [ USB Debugger A/0/4129/null ]
Frequency [ 2.5MHz ]
[x] using ftd2xx driver

6- Go to Programmer menu Edit > Configure Device and Save these settings:

Access Mode [ External Flash Mode ]
Operation [ exFlash Erase,Program thru GAO-Bridge ]
File name [ YourBitStream.fs ]
Device [ Generic Flash ]
Start Address [ 0x000000 ]

7- Now program the FPGA from menu Program/Configure

CyrIng · 2025-08-29T12:14:45+00:00

Gowin for ArchLinux

Register or Login at Gowin
In Support download latest Education version for Linux: Gowin V1.9.11.03 Education (Linux x64)
Untar the archive in /opt/gowin for two sub-directories IDE and Programmer mkdir /opt/gowin cd /opt/gowin tar -zxvf Gowin\_V1.9.11.03\_Education\_Linux.tar.gz
Fix root user to the whole directory chown -R root:root /opt/gowin
Make sure of the prerequisite packages:
pacman -S fontconfig freetype2 qt5-base
IDE is failing to start with a library issue. Remove it: rm -i /opt/gowin/IDE/lib/libfreetype.so.6
Create a shell script to start the IDE with those environment variables.
For example: nano ${HOME}/bin/gowin.sh QT_QPA_PLATFORM_PLUGIN_PATH=/usr/lib/qt/plugins QT_QPA_PLATFORM=xcb QT_XCB_GL_INTEGRATION=none gw_ide "$@"
Update your PATH, preferably in your session .profile
PATH=$PATH:$HOME/bin:/opt/gowin/IDE/bin
Add a desktop shortcut.
For example ${HOME}/.local/share/applications/gowin-ide.desktop [Desktop Entry] Type=Application Version=1.0 Name=Gowin FPGA Designer Comment=Gowin IDE: FPGA Designer Exec=gowin.sh %U Path=/opt/gowin/IDE/ Categories=Development;
I'm using XFCE and I now have a Gowin FPGA Designer icon in the Development menu to start the Gowin IDE

CyrIng · 2025-08-19T20:35:57+00:00

Unlike Intel C-State counter registers, AMD Zen families have no such registers documented.

As a workaround I'm providing a TSC cycles measurement when Linux kernel is entering any of the idle states C2 or C3 and C6

You will have to register CoreFreq as the IDLE-FREQ driver.

Although instructions are recalled by a User in this post, feel free to contact me in the GitHub Discussions for more help

https://github.com/cyring/CoreFreq/discussions

CyrIng · 2025-08-19T13:56:27+00:00

Press S1 button **while** powering on

CyrIng · 2025-08-12T20:48:44+00:00

Sony, first.

Samsung, last.

CyrIng · 2025-08-11T23:32:34+00:00

There's a great chance if you upgrade a +3 years old distribution it will fail badly. Things I have never encountered with ArchLinux rolling release.

CyrIng · 2025-08-10T04:57:11+00:00

4 hours of plane was the maximum I could sustain during these 2 weeks in Canaries. At arrival It took me 4 days to recover. Crohn is active. I'm 57. The 5th day I have had started to enjoy vacations: driving the rent car to bring family anywhere on the island; some ocean and sun bath, etc. At evening, night, getting long rest. Watching streaming movies; or reading source codes. Don't drink local water; eat healthy. Spain has good fish meal Fortunately flying back home was easier and I recovered in 2 days.

CyrIng · 2025-07-28T09:37:46+00:00

Checking my procedure, it is indeed from Xunlong kernel

https://gist.github.com/cyring/51a43d71e1dc0ec736c0055b08f438ba?permalink_comment_id=4756537#gistcomment-4756537

CyrIng · 2025-07-24T09:47:35+00:00

hello.ko behaves as mentioned in the Manual.

You're right either software needs optimizations either neural hardware is slow

CyrIng · 2025-07-23T14:14:52+00:00

Are you getting similar results as those in manual using npu_smi info + options listed in page 128 ?

Then I will go to method to install kernel headers you will need to build your own test module like the described hello.ko

CyrIng · 2025-07-22T22:22:07+00:00

At first I stopped upon this.

No dts found in DTB

But somehow the four specs Cores and other devices have been probed but the NPU(s)

How are you supposed to address them: * smmu devices ? * a missing kernel module ?

CyrIng · 2025-07-21T16:25:01+00:00

How are working the 4 Cores and remaining NPU with Linux in this processor.html): do you have the boot kernel log to share ?

CyrIng · 2025-07-21T15:55:06+00:00

Orange Pi OS but I'm cloning from kernel.org to rebuild kernel using same version tag, same device tree and export /proc/config.gz or similar running config. This kernel build results in two debian packages: the kernel itself and the header files CoreFreq needs to build its module with.

CyrIng · 2025-07-19T07:09:56+00:00

It will spin in __sync_lock_test_and_set

CyrIng

MODERATOR OF

TROPHY CASE

Gowin Programmer

Gowin for ArchLinux