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Old bug affecting all HP laptops resolved

With Hans' help, an old bug related to ACPI impacting majority of HP laptops running on any Linux distribution is finally resolved on both kernel 5.4.2 and 5.3.15. Some models may have an odd issue on boot like

hp_wmi: query 0xd returned error 0x5

due to a too small buffer passing in for HPWMI_FEATURE2_QUERY. A fix is on the way for the next update and a test kernel from scratch-build is available (make sure to download first as the scratch build gets erased in a few days).

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HP Envy x360 15 2500u - One year later

A year passed since owning HP Envy x360 15 2500u now running mainly on Fedora Design Suite now on its 31 release. The Design Suite is based on Fedora Workstation running on Gnome Wayland by default.

The touchscreen works as intended and feel more responsive. Tweaking Firefox 70.0 However, due to a bug related to the GTK toolkit, using a stylus can cause crash on some applications. The fix is available and will be a matter of the time of an update . Sometimes, the touchscreen failed to work due to an issue related to ACPI only HP can address. The current workaround is to reboot the laptop.

The LED Mute button works as intended with the help of a veteran SuSE developer. The quality of audio is adequate with seemly minimal loss  for a laptop once over-amplification is applied via Tweak application.

At the time of writing, the majority of Ryzen APU powered laptop has yet to get the gyroscope function needed to auto-rotate the screen and other features like disabling keyboard on tablet mod…

Fedora Design Suite 31 available

As announced on Fedora Magazine, Design Suite 31 is now available for users like graphic artists and photographers among them.
Notable update is the availability of Blender 2.80 featuring a revamped user interface. Other applications are mostly improved stability.

Users with touch screen devices will notice an improved performance from the Fedora Workstation from which Design Suite is based. Due to a bug related to desktop environment (Gnome Shell running on Wayland), using a stylus can cause applications to crash so the workaround is to run on Gnome on Xorg until the fix lands on a future update.

Full details published on the wiki section.

HP, Linux and ACPI

Majority of HP hardware running on Linux and even Microsoft reported an issue related to a non-standard compliant ACPI. Notable message below repeats at least three times on the boot:

4.876549] ACPI BIOS Error (bug): AE_AML_BUFFER_LIMIT, Field [D128] at bit offset/length 128/1024 exceeds size of target Buffer (160 bits) (20190215/dsopcode-198) 
[ 4.876555] ACPI Error: Aborting method \HWMC due to previous error (AE_AML_BUFFER_LIMIT) (20190215/psparse-529) 
[ 4.876562] ACPI Error: Aborting method \_SB.WMID.WMAA due to previous error (AE_AML_BUFFER_LIMIT) (20190215/psparse-529)

The bug is a known for years from which Linux kernel team are unable to fix without the help of vendor i.e. HP. Here is a compilation of reports:
BIOS error: The BIOS in this system is not fully ACPI compliant. ACPI BIOS ERROR (blue screen) on startup ACPI bad works with Linux  The good news is some errors seems harmless. Unfortunately, such errors displayed the quirks approach used by vendors to support …

Running ROCm on AMD Raven Ridge Mobile

The HP Envy x360 Convertible powered with Ryzen 2500U turned out an impressive laptop for Fedora 29 despite some issues like lack of accelerometer driver for Linux kernel and some ACPI related problems seemly affecting majority of HP laptops.

AMD recently released ROCm 2.0 enabling the support of Raven Ridge Mobile for the first time. The installation has to be clean (remove beignet and pocl)  and requires additional dependency not found on Fedora repository, pth located on COPR. Once completed and rebooted, rocminfo should runs as follow:

HSA System Attributes    
Runtime Version:         1.1
System Timestamp Freq.:  1000.000000MHz
Sig. Max Wait Duration:  18446744073709551615 (number of timestamp)
Machine Model:           LARGE                              
System Endianness:       LITTLE                             

HSA Agents               

Improving HP Envy x360 convertible on Linux: the missing accelerometer driver

If you own an HP laptop equipped with AMD processor, you may find out the auto-rotation will not work as intended. It turned out that sensor is missing a driver not currently available on Linux kernel using the lspci -nn command from the terminal

03:00.7 Non-VGA unclassified device [0000]: Advanced Micro Devices, Inc. [AMD] Device [1022:15e4] That driver in question is AMD Sensor Fusion HUB. Unfortunately, researching it turned out harder even on AMD own website. Bug is already filed without answer yet from one of AMD representative.