I had a lot of errors and file corruption on the previous system and so I replicated it to the new drives only to identify the old RAM as bad.
Continue reading “Unrecoverable/Checksum errors on ZFS pools”Unrecoverable/Checksum errors on ZFS pools
Using a 1440P Ultrawide on a Lenovo Flex 14
The lenovo 81SS Flex 14/S540/S340 series of laptops only officially supports 1920x1080p HDMI out. By using AMD custom resolution, we are able to push 3440x1440p resolution displays.
Issue
The issue with HDMI 1.4 or low powered display outs is that it limits the amount of bandwidth required to push full 4K, or refuses to negotiate full resolution support on the ultrawide over HDMI. The Vega 8 base graphics should be able to support 4k, as well as ultrawide 21:9 high resolution ratio displays. If the laptop had USB-C display out, there wouldn’t be an issue.
Solution
To fix this, we need to set a custom resolution within AMD’s Radeon settings. The issue here is that it’s bugged – setting refresh rate automatically to 60,000. Furthermore, it calculates a bandwidth that exceeds what is supported by HDMI 2.0.
To start, install CRU (Custom resolution utility). We will use this to calculate appropriate timings and porches for the custom resolution within AMD Radeon settings.
Since I had issue with the CB342CK display by Acer, I will be using it as reference. The utility automatically loads the details supported by the display, and we can use the edit feature to show all the settings it would use.
Copy + paste these values into Radeon setting’s custom resolution section.
The next step is to set the refresh rate and the G.pixel Clock. Set the refresh rate to 75 (or the max supported). The G. Pixel Clock here is where the error message “the custom resolution is not compatible with this display” showed up if configured incorrectly. Set this to a value less than 300,000.
Remove SED Password on Seagate ES.2 Constellation Drives
Ever since applying a drive password on these ES.2 drives, I’ve been getting READ:CAM status ATA errors whenever the system is rebooted – causing increased boot time and an annoying export/import of the pool using the ES.2 drives.
Continue reading “Remove SED Password on Seagate ES.2 Constellation Drives”P0030, P0031 and P0134 Scion FRS BRZ 86
This is a log of how I fixed P0030, P0031, and P0134 CEL codes after a UEL header install. Solution is at the end of this post.
Continue reading “P0030, P0031 and P0134 Scion FRS BRZ 86”Painting my FRS wheels with Duplicolor
No more Plastidip!
Continue reading “Painting my FRS wheels with Duplicolor”