Hi, again. First test is done with Virtual Box. I captured a video and please check the clip below. https://drive.google.com/file/d/1WXl4CxMv1iNkO72F_5uXnLyOGVG33ytA/view?usp=sharing I think it is not much delayed. After installing OpenSuse tumbleweed, I added ibus-hangul package with ibus-daemon, google-noto-sans-kr fonts. Maybe it is related to the graphic card driver, on the next installing notebook with HD620 graphic core.
On Thu, May 15, 2025 at 5:15 PM Sung-Jae, Cho <cho.sung...@gmail.com> wrote: > Thanks for the information. :) > > Additionally, I'll test with an Intel HD Graphics 620 notebook, too. > > On Thu, May 15, 2025 at 5:09 PM Igor Mironchik <igor.mironc...@gmail.com> > wrote: > >> On 15.05.2025 10:44, Sung-Jae, Cho wrote: >> >> I'll try again with openSUSE Tumbleweed. :) >> Please, wait a day. I'll try with virtual machines and real machines, >> both. >> And if you can bring some hardware information with a video card driver, >> xorg-driver, etc, >> it'll be helpful for finding the cause. >> >> Operating System: openSUSE Tumbleweed 20250512 KDE Plasma Version: 6.3.5 >> KDE Frameworks Version: 6.14.0 Qt Version: 6.9.0 Kernel Version: >> 6.14.5-1-default (64-bit) Graphics Platform: X11 Processors: 4 × Intel® >> Core™ i5-7200U CPU @ 2.50GHz Memory: 7,6 GiB of RAM Graphics Processor: >> llvmpipe Manufacturer: HP Product Name: HP ProBook 640 G3 >> >> Extended renderer info (GLX_MESA_query_renderer): >> >> Vendor: Intel (0x8086) >> >> Device: Mesa Intel(R) HD Graphics 620 (KBL GT2) (0x5916) >> >> Version: 25.0.5 >> >> Accelerated: yes >> >> Video memory: 3909MB >> >> Unified memory: yes >> >> Preferred profile: core (0x1) >> >> Max core profile version: 4.6 >> >> Max compat profile version: 4.6 >> >> Max GLES1 profile version: 1.1 >> >> Max GLES[23] profile version: 3.2 >> >> OpenGL vendor string: Intel >> >> OpenGL renderer string: Mesa Intel(R) HD Graphics 620 (KBL GT2) >> >> OpenGL core profile version string: 4.6 (Core Profile) Mesa 25.0.5 >> >> OpenGL core profile shading language version string: 4.60 >> >> OpenGL core profile context flags: (none) >> >> OpenGL core profile profile mask: core profile >> >> EGL driver name: iris >> >> EGL_MESA_image_dma_buf_export, EGL_MESA_query_driver, >> >> EGL driver name: iris >> >> EGL_MESA_gl_interop, EGL_MESA_image_dma_buf_export, >> EGL_MESA_query_driver, >> >> EGL driver name: iris >> >> EGL_MESA_image_dma_buf_export, EGL_MESA_query_driver, >> >> EGL driver name: iris >> >> EGL_MESA_image_dma_buf_export, EGL_MESA_query_driver, >> >> EGL driver name: swrast >> >> EGL_MESA_image_dma_buf_export, EGL_MESA_query_driver, >> >> >> On Thu, May 15, 2025 at 4:38 PM Igor Mironchik <igor.mironc...@gmail.com> >> wrote: >> >>> >>> On 15.05.2025 08:49, Konstantin Kharlamov wrote: >>> > On Thu, 2025-05-15 at 08:37 +0300, Igor Mironchik wrote: >>> >> On 15.05.2025 08:29, Konstantin Kharlamov wrote: >>> >>> On Thu, 2025-05-15 at 06:29 +0300, Igor Mironchik wrote: >>> >>>> Hi. >>> >>>> >>> >>>> Are any Korean here? I'm curious if they have very bad >>> >>>> performance of >>> >>>> rendering Korean text in any Qt application? Or is this just >>> >>>> because >>> >>>> of >>> >>>> missing some fonts on my system? I see a huge performance >>> >>>> slowdown on >>> >>>> Korean text rendering. >>> >>> How did you measure? I'm not a Korean, but I tried pasting a Korean >>> >>> wiki article to Kate with "Droid Sans [1ASC]" font and scrolling >>> >>> and I >>> >>> don't see any change in performance. Perhaps some more scientific >>> >>> method required. >>> >> >>> >> I paste in Kate a Korean text (~1kB), it took so much time to paste >>> >> and >>> >> render it (~5 seconds), and Kate starts to think a lot even on >>> >> navigating in menu. >>> >> >>> >> The same with English or Russian text - I don't see any delays, Kate >>> >> is >>> >> responsive. >>> > I see. Seems something specific to your system — I just created a 158K >>> > text file by copy-pasting a Korean Wiki article a dozen of times, and >>> > when I open it in Kate, everything is smooth and nice. >>> > >>> > Is it maybe the font? What font do you use? Can you try going to Kate >>> > settings and changing the font to "Droid Sans [1ASC]" (on Archlnux it's >>> > a `ttf-droid` package) and seeing if that makes any difference? >>> >>> I guess too this is system specific. I'm on openSUSE Tumbleweed. >>> Changing editor's font to Droid Sans doesn't help. >>> >>> Ok. I see that this issue is system specific, so my question is >>> answered. Maybe somebody can check this issue on Tumbleweed only? >>> >>> Thank you. >>> >>
