Screen issues still not sorted :(

I was hoping changing from HDMI to DisplayPort would sort out my screen issues. To a degree, it did.

I can now use my screen at full resolution using the amdgpu driver from Fedora repositories but the intermittent, incredibly irritating, sporadic blank screen issues persists.

Another suggestion that came up from a forum was to try X11 instead of Wayland to draw stuff, that helped with a wonky dialog issue, but still no fix for the sporadic blank screen.

Getting to the point I'm almost tempted to try another monitor in case it's not software. That would be surprising though.

Display issues still being a nuisance

A while back I purchased a nice fat Benq BL2710.

Besides the frustrating front panel buttons, it seems to be a really decent monitor, which I'd be really happy with if I could get Fedora Linux to drive it correctly.

Initially I was using the onboard Intel graphics, which simply refused to offer the resolution(s) I want to run at (2560 x 1440).

So I decided to try a seperate graphics card. After some reading that suggested it may be workable with Linux I went for a 4GB Gigabyte Radeon RX460.

[dafoot@bigfoot ~]$ lspci | grep VGA
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Baffin [Radeon RX 460] (rev cf)
[dafoot@bigfoot ~]$ 

Now under Fedora 25 there are included open drivers for this GPU and it appears my system has them installed:

[root@bigfoot ~]# lshw -c video
  *-display                 
       description: VGA compatible controller
       product: Baffin [Radeon RX 460]
       vendor: Advanced Micro Devices, Inc. [AMD/ATI]
       physical id: 0
       bus info: pci@0000:01:00.0
       version: cf
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
       configuration: driver=amdgpu latency=0
       resources: irq:131 memory:b0000000-bfffffff memory:c0000000-c01fffff ioport:e000(size=256) memory:de300000-de33ffff memory:c0000-dffff
[root@bigfoot ~]# 

So now my 'select resolution' interface at least recognised the Radeon 460 and the monitor as Benq BL2710.

So that's progress.

Unfortunately, any time I select that resolution, it is unusable....all fuzzy/jaggy.

Curiously, I just took a screenshot to add to this post while the scrren was a mess like that and the image showed all the text perfectly clearly.

I wonder if DisplayPort will behave any better if I try that.

Brother MFCL8650CDW

I've recently been battling with a Brother laser printer to get it to print from my Fedora (23) workstation. It had been working before, so compatability wasn't the issue, unless some library withing my system had changed. Turns out it was SELinux getting in the way (I usually have it off altogether as it causes me more headaches than I can be bothered with!). Running the command below seemed to sort it out:

setsebool -P cups_execmem 1