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Diffstat (limited to 'results/classifier/deepseek-2-tmp/output/graphic/1752646')
| -rw-r--r-- | results/classifier/deepseek-2-tmp/output/graphic/1752646 | 23 |
1 files changed, 0 insertions, 23 deletions
diff --git a/results/classifier/deepseek-2-tmp/output/graphic/1752646 b/results/classifier/deepseek-2-tmp/output/graphic/1752646 deleted file mode 100644 index 1f6e6a608..000000000 --- a/results/classifier/deepseek-2-tmp/output/graphic/1752646 +++ /dev/null @@ -1,23 +0,0 @@ - -Freezing VNC screen on some the UEFI framebuffer applications - -Hi folks! - -I use TianCore (UEFI) formware on the qemu (master version last commit a6e0344). -When kernel/linux is start, it using UEFI Framebuffer. Then I run UEFI application (which writes directly to the framebuffer) my VNS screen is freezing. Then I restart vnclient I see only one frame. - -When I run application, I getting in the file hw/display/vga.c on function 'vga_ioport_write' some commands, it change "s->ar_index" from 0x20 -> 0x10 - -In the function vga_update_display: -1751 if (!(s->ar_index & 0x20)) { -1752 graphic_mode = GMODE_BLANK; -1753 } else { - -And I got GMODE_BLANK mode. If I patch it: -1751 if (0) { - -my VNC not freezing. - -From "Hardware Level VGA and SVGA Video Programming Information Page" I saw, what ar_index is 0x3C0 (Attribute Controller Data Write Register), 0x20(5-bit) is PAS -- Palette Address Source - -If there is a output via the UEFI framebuffer, does the difference have a PAS or not? Why do we need to pause the output if the PAS is exposed? Especially when the application outputs via framebuffer. \ No newline at end of file |