[Documentation-packages] [Bug 2017573] Re: Font hinting broken on 23.04

2023-05-04 Thread mrvanes
The README for fonts-liberation2 says: * This is fonts-liberation v2 packaged in a separate source package. The binary package is co-installable with fonts-liberation v1 by installing the actual TTF files into a different directory (i.e. /usr/share/fonts/truetype/liberation2). Si

[Documentation-packages] [Bug 2017573] Re: Font hinting broken on 23.04

2023-05-04 Thread mrvanes
Ok, I solved the problem. There were many coincidences playing a role in this report. For starters the (real) regression in fonts-ubuntu triggered my attention, but unlucky testing against Liberation Sans revealed a change in hinting between fonts-liberation and fonts-liberation2, which wasn't ins

[Documentation-packages] [Bug 2017573] Re: Font hinting broken on 23.04

2023-05-03 Thread mrvanes
And this is the perfectly hinted Verdana9 counter example on Ubuntu 23.04 using GNOME desktop. ** Attachment added: "Verdana9hinted_GNOME.png" https://bugs.launchpad.net/ubuntu/+source/fonts-ubuntu/+bug/2017573/+attachment/5670551/+files/Verdana9hinted_GNOME.png -- You received this bug noti

[Documentation-packages] [Bug 2017573] Re: Font hinting broken on 23.04

2023-05-03 Thread mrvanes
That was already covered in this issue, but I just unstalled Ubuntu 23.04 in a VM to be sure and here's the screenshot of a failing hinted Liberation Sans in GNOME. ** Attachment added: "LiberationSans10hinted_GNOME.png" https://bugs.launchpad.net/ubuntu/+source/fonts-ubuntu/+bug/2017573/+atta

[Documentation-packages] [Bug 2017573] Re: Font hinting broken on 23.04

2023-05-02 Thread mrvanes
The fact that I mentioned Ubuntu (Mono) in the original report is a coincidence. As far as I can tell, there is no relation to the updated Ubuntu font, except that it may exacerbate the regression. There are many fonts (I think all, except the mentioned Microsoft fonts like e.g. but not limited

[Documentation-packages] [Bug 2017573] Re: Font hinting broken on 23.04

2023-05-01 Thread mrvanes
But the regression took place after upgrading from 22.10. So it keeps getting weirder and weirder. -- You received this bug notification because you are a member of Documentation Packages, which is subscribed to fonts-ubuntu in Ubuntu. https://bugs.launchpad.net/bugs/2017573 Title: Font hintin

[Documentation-packages] [Bug 2017573] Re: Font hinting broken on 23.04

2023-05-01 Thread mrvanes
@mgiammarco I agree it all points to libfreetype, but I compiled libfreetype 2.13.0 from source and see exactly the same problems (or I made a mistake replacing the system libs while installing libfreetype?). Also, downgrading to 22.10 libfreetype package didn't resolve the problems. -- You recei

[Documentation-packages] [Bug 2017573] Re: Font hinting broken on 23.04

2023-05-01 Thread mrvanes
@gunnarhj What @mgiammarco is trying to explain is that the RGB subpixel rendering is also broken. RGB subpixel rendering is a way to make aliased fonts look even smoother by making use of the physical layout of the panel pixels. By colouring the aliased pixel, they can be positioned closer to the

[Documentation-packages] [Bug 2017573] Re: Font hinting broken on 23.04

2023-04-30 Thread mrvanes
@mgiammarco This is what anti-aliased rendering with RGB subpixel rendering blown up to 600% looks for me. Does this help? ** Attachment added: "RGB_subpixel.png" https://bugs.launchpad.net/ubuntu/+source/fonts-ubuntu/+bug/2017573/+attachment/5669756/+files/RGB_subpixel.png -- You received t

[Documentation-packages] [Bug 2017573] Re: Font hinting broken on 23.04

2023-04-27 Thread mrvanes
Ok, I'll do some more testing and investigation myself as well. Regarding the hinting, that clearly is a matter of taste. I think non- aliased hinted fonts (8pt or 9pt) on a full HD screen look much better (crisp and sharp) than aliased fonts at that size. Mind that I do alias fonts bigger than 15

[Documentation-packages] [Bug 2017573] Re: Font hinting broken on 23.04

2023-04-27 Thread mrvanes
The very first conclusion was from applied Ubuntu/Ubuntu Mono on restart of 23.04, the rest was mostly based on previews in the systemsettings fonts dialog scaled up to 300%, except comment #12, which was Verdana no-hinting applied. -- You received this bug notification because you are a member o

[Documentation-packages] [Bug 2017573] Re: Font hinting broken on 23.04

2023-04-27 Thread mrvanes
I admit I'm also quite at a loss, though the overall feeling is a loss of functionality (hence the report). For me, hinted Liberation Sans renders perfect on 22.04 (and 22.10 for what it's worth) but looks horrible on 23.04, see comment #17. There is no font version difference on both releases. An

[Documentation-packages] [Bug 2017573] Re: Font hinting broken on Plasma 23.04

2023-04-27 Thread mrvanes
Downgrading (lib)fontconfig* to 2.13 doesn't help as well. I'm running out of ideas. -- You received this bug notification because you are a member of Documentation Packages, which is subscribed to fonts-ubuntu in Ubuntu. https://bugs.launchpad.net/bugs/2017573 Title: Font hinting broken on Pl

[Documentation-packages] [Bug 2017573] Re: Font hinting broken on Plasma 23.04

2023-04-27 Thread mrvanes
Neither downgrading freetype to 2.12.1 dfsg-3 nor upgrading to self compiled 2.13 resolves the problem. Back to the drawing board. -- You received this bug notification because you are a member of Documentation Packages, which is subscribed to fonts-ubuntu in Ubuntu. https://bugs.launchpad.net/bu

[Documentation-packages] [Bug 2017573] Re: Font hinting broken on Plasma 23.04

2023-04-26 Thread mrvanes
I know Ubuntu font underwent changes in 23.04 but comment #17 was explicitly added to discharge any suspicion towards that change. It's NOT only Ubuntu font that hints incorrectly when hinting is enabled. All fonts that looked great in 22.04 are now horribly rendered in 23.04, like e.g. Liberation